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💡 动态存储管理源码重构

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康建伟
2020-04-16 11:28:41 +08:00
parent c6abe2ff86
commit 81db65cd68
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47
CLion/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod-main.c Normal file
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#include <stdio.h>
#include "BoundaryTagMethod.h" //**▲08 动态存储管理**//
int main(int argc, char* argv[]) {
Space pav;
Space p[12]; // 记录申请到的内存的指针
int s[12] = {10, 20, 30, 50, 5, 15, 10, 5, 15, 15, 2, 20}; // 申请的空间大小
int i = 0;
printf("████████ InitSpace \n");
{
int max = 200; // 初值建议为20的倍数，目的是打印出来可以对齐
printf("初始化包含 %d 个\"字\"的内存块后，当前内存布局为：\n", max);
pav = InitSpace(max);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("████████ AllocBoundTag \n");
{
for(i = 0; i < 12; i++) {
printf("████ %2d> 申请 %d 个\"字\"的内存后，当前内存布局为：\n", i + 1, s[i]);
p[i] = AllocBoundTag(&pav, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("████████ FreeBoundTag \n");
{
// 定义一个指针回收顺序
int a[10] = {7, 3, 10, 6, 8, 5, 11, 1, 0, 4};
for(i = 0; i < 10; i++) {
printf("回收 p%d 指向的内存...\n", a[i] + 1);
FreeBoundTag(&pav, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

330
CLion/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.c Normal file
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/*==============
* 边界标识法
*
* 包含算法: 8.1
===============*/
#include "BoundaryTagMethod.h" //**▲08 动态存储管理**//
/*
* 全局变量：永远指向初始空间的头部。
* 该变量有两个作用：
* 1.用来追踪内存布局，即查看内存的使用情况。
* 2.指示内存的起始和结尾
*/
static Space av;
// 记录空间容量，用于追踪内存布局
static int len;
/*
* 初始化一块总大小为n个字的内存，并返回指向该内存的起点的指针
* 注：返回的初始内存已经包含了head和foot。
*/
Space InitSpace(int n) {
Space space, head, foot;
// 初始化空闲内存
space = (Space) malloc(n * sizeof(WORD));
if(space == NULL) {
return NULL;
}
// 初始化头部信息
head = space;
head->llink = space; // 前驱指向自身
head->rlink = space; // 后继指向自身
head->size = n; // 空间大小，已经包含了head和foot
head->tag = 0; // 标记空间空闲
// 初始化底部信息
foot = FootLoc(head); // 初始化底部指针
foot->uplink = head; // 底部域链接到本结点的头部
foot->tag = 0; // 标记空间空闲
// 记下空间的起始位置和容量
av = space;
len = n;
return space;
}
/*
* ████████ 算法8.1 ████████
*
* 边界标识法的内存分配算法
*
* 从空间pav中申请一块大小至少为n的空间，并返回指向申请到的空间的指针。如果分配失败，则返回NULL。
* 为了使分配后的剩余块尽量均匀分布，每次分配完之后都要把空间指针pav向前移动，具体描述参见教材。
*
* 注：
* 1.这里采用首次拟合法，即一遇到满足条件的内存块就进行分配操作。
* 2.为了避免空间碎片化过快，这里增加了一个容差e，具体含义参考教材描述。
* 3.这里申请分配n个字的空间，指的是已经完成换算的空间。
* 比如用户想要容量为10个字的空间，但每个空间又包含head和foot这两个字存储空间使用信息，
* 因此实际上分配的空间大小应为12个字，这个"12"就是n的含义。
* 教材中提到"head和foot在分配时忽略不计"，这样是为了伪码书写的方便。实际写代码时，这两个空间是不能忽略的。
* 但是如果按照上面的描述，把n解释为已经换算后空间，而不是用户原始申请的空间，
* 那么既满足了没有忽略空间，又满足了在书面效果上，跟教材伪码统一，可谓两全其美。
*/
Space AllocBoundTag(Space* pav, int n) {
Space p, f;
/*
* 增加一个判断：如果换算后的空间容量小于3，则直接返回。
* 因为head和foot本身就占了2个字空间，用户至少申请1个字的话，总申请空间至少为3个字。
*/
if(n < 3) {
printf("日志：分配失败！申请的\"字\"数应当不小于3\n");
return NULL;
}
// 查找不小于n的空闲块
for(p = *pav; p && p->size < n && p->rlink != *pav; p = p->rlink) {
}
// 找不到合适的空闲块，返回空指针
if(!p || p->size < n) {
return NULL;
}
/* 至此，p指向了满足条件的空闲块 */
// 让f指向该空闲块的底部
f = FootLoc(p);
// pav指向p结点的后继结点，即指向下一个空闲块
*pav = p->rlink;
// 如果空闲块比申请的容量大不了多少，则需要整块分配，即不保留<=e的剩余量
if(p->size - n <= e) {
// 由于上面已经让pav指向了下一个空闲块，所以如果pav与p相等，说明此时只有一个空闲块了(注意空闲块链表是双循环的)
if(*pav == p) {
*pav = NULL; // 如果仅剩一个空闲块了，那么被占用后，可利用空间表变为空表
// 否则，在表中删除分配的结点
} else {
(*pav)->llink = p->llink; // 修改pav的前驱
p->llink->rlink = *pav; // 修改pav前驱的后继
/* 在上述操作中，p结点的前驱与后继并没有改变，这是为了方便将来的回收操作 */
}
// 更新占用块为占用状态
p->tag = f->tag = 1;
printf("日志：分配成功！申请 %d 个\"字\"，实际分配了 %d 个\"字\"。空闲空间容量为 %d ...\n", n, n + e, AvailableSpace(*pav));
// 如果空闲块很大，则从中间切割，占用后面的n个字
} else {
f->tag = 1; // 修改分配块的底部标志，表示其处于占用状态
p->size -= n; // 设置剩余块大小
f = FootLoc(p); // 计算剩余块的新底部位置
f->tag = 0; // 设置新底部标志为空闲
f->uplink = p; // 新底部依然指向空闲块头部
p = f + 1; // 计算分配块的新头部位置
p->tag = 1; // 设置分配块新头部标志为占用
p->size = n; // 设置分配块的容量
// 修改分配块底部的链接(教材中缺失了此步骤)
(FootLoc(p))->uplink = p;
printf("日志：分配成功！申请并分配了 %d 个\"字\"。空闲空间容量为 %d ...\n", n, AvailableSpace(*pav));
}
// 返回分配块首地址
return p;
}
/*
* 边界标识法的内存回收算法
*
* 对指针p处的内存进行释放(这类似于free()，只是对内存进行释放操作，至于置空指针p的操作，应交给调用方完成)
*
* 注：以下描述中的"释放块"就是指针p指向的内存
*/
void FreeBoundTag(Space* pav, Space p) {
Space h, f, q;
int Ltag, Rtag;
if(p == NULL) {
printf("日志：回收失败！内存指针为空。空闲空间容量为 %d ...\n", AvailableSpace(*pav));
return;
}
Ltag = p == av ? 1 : (p - 1)->tag; // 块p的左邻区标志。特别注意，如果块p位于内存起始处，则认为它的左邻区为占用。
Rtag = (p + p->size) == (av + len) ? 1 : (p + p->size)->tag; // 块p的右邻区标志。特别注意，如果块p位于内存结尾处，则认为它的右邻区为占用。
/*
* 1.释放块的左、右邻区均为占用块
*
* 此时仅需要将块p插入到pav所指结点的之前即可(当然，插入到之后也是可以的)
*/
if(Ltag == 1 && Rtag == 1) {
printf("日志：\"释放块\"的容量为 %d ，且它的左、右邻区均为占用块...\n", p->size);
f = FootLoc(p);
f->uplink = p;
f->tag = 0;
p->tag = 0;
// 空闲链表为空时，直接将块p变为新的独立的空闲块
if((*pav) == NULL) {
*pav = p->llink = p->rlink = p;
// 否则，将块p插入到pav之前
} else {
q = (*pav)->llink;
p->rlink = *pav;
p->llink = q;
q->rlink = (*pav)->llink = p;
// 令刚释放的结点成为下次分配空间时最先查找的结点
*pav = p;
}
printf("日志：回收成功！空闲空间容量为 %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 2.释放块的左邻区为空闲块，右邻区为占用块
*
* 此时需要合并左邻区与释放块
*/
if(Ltag == 0 && Rtag == 1) {
printf("日志：\"释放块\"的容量为 %d ，且它的左邻区为空闲块，右邻区为占用块...\n", p->size);
h = (p - 1)->uplink; // 左邻区的头部，这将成为合并后的新块的头部
h->size += p->size; // 左邻区容量增大
f = FootLoc(p); // 将释放块的底部做为合并后的新块的底部
f->uplink = h;
f->tag = 0;
printf("日志：回收成功！空闲空间容量为 %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 3.释放块的左邻区为占用块，右邻区为空闲块
*
* 此时需要合并释放块与右邻区
*/
if(Ltag == 1 && Rtag == 0) {
printf("日志：\"释放块\"的容量为 %d ，且它的左邻区为占用块，右邻区为空闲块...\n", p->size);
h = p + p->size; // 右邻区的头部
f = FootLoc(h); // 右邻区的底部，这将成为合并后的新块的底部
f->uplink = p; // 释放块的头部将作为合并后新块的头部
p->tag = 0;
p->size += h->size;
// 释放块的头部链接域要更新为与右邻区头部的链接域一致
p->llink = h->llink;
p->rlink = h->rlink;
h->llink->rlink = p;
h->rlink->llink = p;
// pav指向合并后的结点的新头部
*pav = p;
printf("日志：回收成功！空闲空间容量为 %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 4.释放块的左、右邻区均为空闲块
*
* 此时需要合并左邻区、释放块、右邻区
*/
if(Ltag == 0 && Rtag == 0) {
printf("日志：\"释放块\"的容量为 %d ，且它的左、右邻区均为空闲块...\n", p->size);
h = (p - 1)->uplink; // 左邻区的头部，这将成为合并后的新块的头部
q = p + p->size; // 右邻区的头部
f = FootLoc(q); // 右邻区的底部，这将成为合并后的新块的底部
h->size += p->size + q->size; // 合并后的新块大小
f->uplink = h; // 新块底部信息也要更新
// 移除右邻区
q->rlink->llink = q->llink;
q->llink->rlink = q->rlink;
printf("日志：回收成功！空闲空间容量为 %d ...\n", AvailableSpace(*pav));
return;
}
}
/*
* 打印内存布局，查看当前内存的使用情况
* 注：仅限内部测试使用
*/
void PrintMemoryLayout() {
Space p;
int count;
int i;
p = av;
count = av->size;
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("□");
} else {
printf("■");
}
if(i == count && count < len) {
p = p + p->size;
count += p->size;
printf("|");
} else {
printf(" ");
}
// 每隔20个换一下行
if(i % 20 == 0) {
printf("\n");
}
}
if(len % 20 != 0) {
printf("\n");
}
}
/*
* 计算可用的空闲空间容量
*
* 注：仅限内部使用，用在日志打印中
*/
static int AvailableSpace(Space pav) {
Space p;
int count;
if(pav == NULL) {
return 0;
}
p = pav;
count = 0;
do {
count += p->size;
p = p->rlink;
} while(p != pav);
return count;
}

96
CLion/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.h Normal file
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/*==============
* 边界标识法
*
* 包含算法: 8.1
===============*/
#ifndef BOUNDARYTAGMETHOD_H
#define BOUNDARYTAGMETHOD_H
#include <stdio.h>
#include <stdlib.h>
#include "Status.h" //**▲01 绪论**//
/* 宏定义 */
#define e 5 // 分配空间时用到的容差
#define FootLoc(p) p+(p->size)-1 // 将p指针定位到p所指内存块的底部
/*
* 内存"字"的类型定义
*
* 所谓"字"是指空间分配的最小单位，它不是字节。
* 一个"字"有多大，取决于对"字"结构是如何定义的。
*/
typedef struct WORD {
/*
* 注：
* 教材中将llink和uplink封装在了一个联合体中，个人感觉这个封装有些鸡肋。
* 一方面，head和foot的公共部分其实只有tag，如果真想用联合体，那么应当把size和rlink也封装起来。
* 另一方面，这个封装节省的空间很有限，而且直接影响了代码的可读性。
* 这里只是教学代码，而不是真实的系统代码，所以空间考虑在其次，原理展示为首要任务。
* 此外，教材中的伪码中也并没有考虑这个联合体，而是直接进行操作的。
* 综上所述，这里去除了教材中的联合体结构。
* 如想观察带有联合体的写法，可以参考CFree分支的代码。
*/
int tag; // 块标志，0空闲，1占用，头部和尾部均有
struct WORD* llink; // 头部域，指向前驱结点
struct WORD* rlink; // 头部域，指向后继结点
int size; // 头部域，块大小
struct WORD* uplink; // 底部域，指向本结点头部
} WORD;
typedef WORD* Space; // Space：指向可利用空间的指针类型
/*
* 初始化一块大小为n个字的内存，并返回指向该内存的起点的指针
* 注：返回的初始内存已经包含了head和foot。
*/
Space InitSpace(int n);
/*
* ████████ 算法8.1 ████████
*
* 边界标识法的内存分配算法
*
* 从空间pav中申请一块大小至少为n的空间，并返回指向申请到的空间的指针。如果分配失败，则返回NULL。
* 为了使分配后的剩余块尽量均匀分布，每次分配完之后都要把空间指针pav向前移动，具体描述参见教材。
*
* 注：
* 1.这里采用首次拟合法，即一遇到满足条件的内存块就进行分配操作。
* 2.为了避免空间碎片化过快，这里增加了一个容差e，具体含义参考教材描述。
* 3.这里申请分配n个字的空间，指的是已经完成换算的空间。
* 比如用户想要容量为10个字的空间，但每个空间又包含head和foot这两个字存储空间使用信息，
* 因此实际上分配的空间大小应为12个字，这个"12"就是n的含义。
* 教材中提到"head和foot在分配时忽略不计"，这样是为了伪码书写的方便。实际写代码时，这两个空间是不能忽略的。
* 但是如果按照上面的描述，把n解释为已经换算后空间，而不是用户原始申请的空间，
* 那么既满足了没有忽略空间，又满足了在书面效果上，跟教材伪码统一，可谓两全其美。
*/
Space AllocBoundTag(Space* pav, int n);
/*
* 边界标识法的内存回收算法
*
* 对指针p处的内存进行释放
*/
void FreeBoundTag(Space* pav, Space p);
/*
* 打印内存布局，查看当前内存的使用情况
* 注：仅限内部测试使用
*/
void PrintMemoryLayout();
/*
* 计算可用的空闲空间容量
*
* 注：仅限内部使用，用在日志打印中
*/
static int AvailableSpace(Space pav);
#endif

12
CLion/CourseBook/0801_BoundaryTagMethod/CMakeLists.txt Normal file
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# 包含公共库
include_directories(${CMAKE_SOURCE_DIR}/Status)
# 生成可执行文件
add_executable(BoundaryTagMethod BoundaryTagMethod.h BoundaryTagMethod.c BoundaryTagMethod-main.c)
# 链接公共库
target_link_libraries(BoundaryTagMethod Scanf_lib)
# 记录要拷贝到*.exe目录下的资源文件
file(GLOB TestData TestData*.txt)
# 将资源文件拷贝到*.exe目录下，不然无法加载
file(COPY ${TestData} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

44
CLion/CourseBook/0802_BuddySystem/BuddySystem-main.c Normal file
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#include <stdio.h>
#include "BuddySystem.h" //**▲08 动态存储管理**//
int main(int argc, char* argv[]) {
FreeList avail;
WORD* p[8]; // 记录申请到的内存的指针
int s[8] = {4, 5, 6, 7, 1, 5, 3, 9}; // 申请的空间大小
int i;
printf("████████ InitSpace \n");
{
printf("初始化一个内存块...\n");
InitSpace(avail);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("████████ AllocBuddy \n");
{
for(i = 0; i < 8; i++) {
printf("申请大小为 %d 个字的内存块...\n", s[i]);
p[i] = AllocBuddy(avail, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("████████ FreeBuddy \n");
{
// 定义一个指针回收顺序
int a[8] = {2, 0, 5, 7, 1, 4, 3, 6};
for(i = 0; i < 8; i++) {
FreeBuddy(avail, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

283
CLion/CourseBook/0802_BuddySystem/BuddySystem.c Normal file
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/*==============
* 伙伴系统
*
* 包含算法: 8.2
===============*/
#include "BuddySystem.h"
// 记录内存的起始地址，在计算伙伴块时候需要用到
WORD* start;
/*
* 初始化一块大小为2^M个字的内存，并返回指向该内存的起点的指针
* 注：返回的初始内存已经包含了head。
*/
void InitSpace(FreeList avail) {
int k;
WORD* r;
// 遍历M+1个元素
for(k = 0; k <= M; k++) {
avail[k].nodesize = (int) pow(2, k);
avail[k].first = NULL;
}
r = (WORD*) malloc((int) pow(2, M) * sizeof(WORD));
if(r == NULL) {
exit(OVERFLOW);
}
// 设置头部信息
r->llink = r->rlink = r;
r->tag = 0;
r->kval = M;
avail[M].first = r;
start = r;
}
/*
* ████████ 算法8.2 ████████
*
* 伙伴系统的内存分配算法
*
* 从空间avail中申请一块大小至少为n(原始值)的空间，并返回指向申请到的空间的指针。如果分配失败，则返回NULL。
*
* 注：
* 1.这里采用首次拟合法，即一遇到满足条件的内存块就进行分配操作。
* 2.这里申请分配n个字的空间，指的是用户申请的原始空间。
* 实际在申请时，还要考虑到每个块前面有1个字的head信息，即经过换算后，实际需要申请(n+1)个字。
* 这里的n与算法8.1里面的n含义正好相反，需要注意。
*/
WORD* AllocBuddy(FreeList avail, int n) {
int k, i;
WORD* pa, * pre, * suc, * pi;
/*
* 增加一个判断：如果换算后的空间容量小于1，则直接返回。
*/
if(n < 1) {
printf("日志：分配失败！申请的\"字\"数应当不小于1\n");
return NULL;
}
// 查找不小于n的空闲块
for(k = 0; k <= M && (avail[k].nodesize < n + 1 || !avail[k].first); k++) {
}
// 找不到合适的空闲块，返回空指针
if(k > M) {
printf("日志：分配失败！没有足够的空闲块\n");
return NULL;
}
pa = avail[k].first; // 指向可分配子表的第一个结点
pre = pa->llink; // 分别记下前驱和后继
suc = pa->rlink;
// 如果此处仅有一个空闲块，则分配后该子表变为空
if(pa == suc) {
avail[k].first = NULL;
// 否则，从链表头部摘下一个可用的空闲块，并将子表头指针指向下一个空闲块
} else {
pre->rlink = suc;
suc->llink = pre;
avail[k].first = suc;
}
/*
* 从k-1处开始逆向遍历FreeList数组，向其中填充剩余的空闲块。
* 剩余的空闲块是对剩余可用空间的拆分。
*
* 这里用到一个公式：2^m-2^n = 2^n+2^(n+1)+...+2^(m-1)
* 比如初始容量为2^16，此时总共申请1500个字，那么需要分配一块2^11的空闲块给它。
* 分配完之后，剩余的容量为：2^16-2^11 = 2^11+2^12+2^13+2^14+2^15。
* 这些剩余容量可以拆分为5个空闲块，分别存储到15、14、13、12、11这五个索引处。
*/
for(i = 1; k - i >= 0 && avail[k - i].nodesize >= n + 1; i++) {
pi = pa + (int) pow(2, k - i); // 每次将pi指向剩余空间的后一半
pi->rlink = pi->llink = pi; // 初始化pi的前驱和后继
pi->tag = 0; // 标记为空闲块
pi->kval = k - i; // 设置该块的容量标志，真实容量为2^(k-i)
avail[k - i].first = pi;
/*
* 注：
* 上面分解出来的pi直接添加到了avail中，并没有考虑同位置处会不会有别的容量相同的空闲块。
* 这里不需要考虑的原因是如果同位置处已经存在别的容量相同的空闲块，
* 那么这里根本不需要分解剩余空间，换句话说，连这个循环都进不来。
* 只要进来这个循环，说明目标位置处已经为空了，没有找到合适的空闲块，所以这才进一步向高游标处寻找空闲块。
*/
}
// 最后剩下的最靠前的空间就是需要分配的空间(这里没有设置pa的前驱和后继，因为没必要)
pa->tag = 1;
pa->kval = k - (--i);
printf("日志：分配成功！用户申请 %d 个字，系统申请 %d 个字，实际分配 %d 个字\n", n, n + 1, (int) pow(2, pa->kval));
return pa;
}
/*
* 伙伴系统的内存回收算法
*
* 对指针p处的内存进行释放(这类似于free()，只是对内存进行释放操作，至于置空指针p的操作，应交给调用方完成)
*
* 注：这里没有验证p的取值，调用方应当确保p在合规的范围
*/
void FreeBuddy(FreeList avail, WORD* p) {
int k;
WORD* r;
WORD* buddy = Buddy(p);
if(p == NULL) {
return;
}
/*
* 这里将p结点简单地插入到avail中，包含三种情形：
* 1.伙伴块非空闲
* 2.伙伴空闲，但是伙伴的大小跟p的大小不一致，说明伙伴还没拼合好
* 3.p拼接成了最后一个最大的空闲块
*/
if(buddy->tag == 1 || buddy->kval != p->kval || p->kval == M) {
for(k = 0; k <= M && k < p->kval; k++) {
// 查找p结点应当进入的插槽
}
// 找到插槽，采用头插法将空闲块插入到目标插槽
if(k <= M && k == p->kval) {
p->tag = 0;
if(avail[k].first == NULL) {
p->llink = p->rlink = p;
} else {
p->llink = avail[k].first->llink;
p->rlink = avail[k].first;
p->llink->rlink = p;
p->rlink->llink = p;
}
avail[k].first = p;
printf("日志：回收成功！[%d, (2^%d)]进入插槽 %d 的空闲块链表上\n", (int) (p - start), k, k);
}
// 如果伙伴块是空闲的，此时应当进行合并操作
} else {
for(k = 0; k <= M && k < p->kval; k++) {
// 查找伙伴块所在的插槽
}
// 找到插槽，将伙伴块从空闲块链表中摘下来
if(k <= M && k == p->kval) {
// 伙伴在链表第一个位置
if(avail[k].first == buddy) {
buddy->rlink->llink = buddy->llink;
buddy->llink->rlink = buddy->rlink;
avail[k].first = buddy->rlink;
// 伙伴在中间位置
} else {
for(r = avail[k].first; r->rlink != buddy; r = r->rlink) {
// 查找伙伴，r指向伙伴的前驱
}
r->rlink = buddy->rlink;
buddy->rlink->llink = r;
}
printf("日志：合并成功！[%d, (2^%d)]和[%d, (2^%d)]合并成了", (int) (p - start), k, (int) (buddy - start), k);
// 合并之前，需要确定哪个伙伴靠前
if(p < buddy) {
p->tag = 0;
} else {
p = buddy;
}
p->kval = k + 1; // 指数增一后，即完成合并
printf("[%d, (2^%d)]\n", (int) (p - start), k + 1);
// 出现新的空闲块之后，要进入递归，查看该空闲块是否也存在空闲伙伴
FreeBuddy(avail, p);
}
}
}
/*
* 打印内存布局，查看当前内存的使用情况
* 注：仅限内部测试使用
*/
void PrintMemoryLayout() {
int i, count, total;
WORD* p;
printf("|");
p = start;
count = (int) pow(2, p->kval);
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("_");
} else {
printf("*");
}
// 进入到下一个块
if(i == count && count < (int) pow(2, M)) {
p = start + count;
count += (int) pow(2, p->kval);
printf("|");
}
}
printf("|\n");
}
/*
* 查找块p的伙伴
*
* 将一个空闲块对半分裂后，会生成的两个小空闲块，这两个小空闲块互为伙伴。
*
* 计算伙伴的算法为：
* 对于起始地址为p，大小为2^k的内存块：
* 1.若 p MOD 2^(k+1) == 0 ,则p的伙伴块的起始地址为p+2^k，
* 2.若 p MOD 2^(k+1) == 2^k ,则p的伙伴块的起始地址为p-2^k。
*
* 注：仅限内部使用，用在回收算法中
*/
static WORD* Buddy(WORD* p) {
long s, m, n;
if(p == NULL) {
return NULL;
}
// start是整个空闲块的绝对起始地址，s是p在伙伴系统中的绝对地址，从0开始
s = p - start;
if(s < 0) {
return NULL;
}
m = (long) pow(2, p->kval);
n = (long) pow(2, p->kval + 1);
if(s % n == 0) {
return p + m;
}
if(s % n == m) {
return p - m;
}
return NULL;
}

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/*==============
* 伙伴系统
*
* 包含算法: 8.2
===============*/
#ifndef BUDDYSYSTEM_H
#define BUDDYSYSTEM_H
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "Status.h" //**▲01 绪论**//
/* 宏定义 */
#define M 6 // 假设总空间大小为2^M个字，子表个数为M+1
/*
* 内存"字"的类型定义
*
* 所谓"字"是指空间分配的最小单位，它不是字节。
* 一个"字"有多大，取决于对"字"结构是如何定义的。
*/
typedef struct WORD {
struct WORD* llink; // 头部域的前驱指针
struct WORD* rlink; // 头部域的后继指针
int tag; // 头部域的块标志，0:空闲，1:占用
int kval; // 指示块的大小，比如其值为K时，表示该块的大小为2^K
} WORD;
// 表头向量类型
typedef struct HeadNode {
int nodesize; // 该链表的空闲块的大小
WORD* first; // 该链表的表头指针
} FreeList[M + 1];
/*
* 初始化一块大小为2^M个字的内存，并返回指向该内存的起点的指针
* 注：返回的初始内存已经包含了head。
*/
void InitSpace(FreeList avail);
/*
* ████████ 算法8.2 ████████
*
* 伙伴系统的内存分配算法
*
* 从空间avail中申请一块大小至少为n(原始值)的空间，并返回指向申请到的空间的指针。如果分配失败，则返回NULL。
*
* 注：
* 1.这里采用首次拟合法，即一遇到满足条件的内存块就进行分配操作。
* 2.这里申请分配n个字的空间，指的是用户申请的原始空间。
* 实际在申请时，还要考虑到每个块前面有1个字的head信息，即经过换算后，实际需要申请(n+1)个字。
* 这里的n与算法8.1里面的n含义正好相反，需要注意。
*/
WORD* AllocBuddy(FreeList avail, int n);
/*
* 伙伴系统的内存回收算法
*
* 对指针p处的内存进行释放(这类似于free()，只是对内存进行释放操作，至于置空指针p的操作，应交给调用方完成)
*
* 注：这里没有验证p的取值，调用方应当确保p在合规的范围
*/
void FreeBuddy(FreeList avail, WORD* p);
/*
* 打印内存布局，查看当前内存的使用情况
* 注：仅限内部测试使用
*/
void PrintMemoryLayout();
/*
* 查找块p的伙伴
*
* 将一个空闲块对半分裂后，会生成的两个小空闲块，这两个小空闲块互为伙伴。
*
* 计算伙伴的算法为：
* 对于起始地址为p，大小为2^k的内存块：
* 1.若 p MOD 2^(k+1) == 0 ,则p的伙伴块的起始地址为p+2^k，
* 2.若 p MOD 2^(k+1) == 2^k ,则p的伙伴块的起始地址为p-2^k。
*
* 注：仅限内部使用，用在回收算法中
*/
static WORD* Buddy(WORD* p);
#endif

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# 包含公共库
include_directories(${CMAKE_SOURCE_DIR}/Status)
# 生成可执行文件
add_executable(BuddySystem BuddySystem.h BuddySystem.c BuddySystem-main.c)
# 链接公共库
target_link_libraries(BuddySystem Scanf_lib)
# 记录要拷贝到*.exe目录下的资源文件
file(GLOB TestData TestData*.txt)
# 将资源文件拷贝到*.exe目录下，不然无法加载
file(COPY ${TestData} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

12
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# 包含公共库
include_directories(${CMAKE_SOURCE_DIR}/Status)
# 生成可执行文件
add_executable(GarbageCollection SString.h SString.c GList-HT.h GList-HT.c GarbageCollection.h GarbageCollection.c GarbageCollection-main.c)
# 链接公共库
target_link_libraries(GarbageCollection Scanf_lib)
# 记录要拷贝到*.exe目录下的资源文件
file(GLOB TestData TestData*.txt)
# 将资源文件拷贝到*.exe目录下，不然无法加载
file(COPY ${TestData} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

201
CLion/CourseBook/0803_GarbageCollection/GList-HT.c Normal file
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/*============================
* 广义表的头尾链表存储表示
*
* 包含算法: 5.5、5.6、5.7、5.8
=============================*/
#include "GList-HT.h" //**▲05 数组和广义表**//
/*
* 初始化
*
* 初始化空的广义表，长度为0，深度为1。
*
*【注】
* 需要对每一层去掉括号考察
*/
Status InitGList(GList* L) {
if(L == NULL) {
return ERROR;
}
*L = NULL;
return OK;
}
/*
* ████████ 算法5.7 ████████
*
* 创建
*
* 由字符串S创建广义表L。
*/
Status CreateGList(GList* L, SString S) {
SString emp; // 代表空广义表的字符串
SString hsub, sub;
GList p, q;
if(L == NULL) {
return ERROR;
}
// 清理字符串S中的空白，包括清理不可打印字符和清理空格
ClearBlank(S);
if(StrEmpty(S)) {
return ERROR;
}
StrAssign(emp, "()");
/*
* 如果输入串为()，则代表需要创建空的广义表
*
*【注】
* 教材这里的代码是有问题的。
* StrCompare的返回值指示的是两个字符串的大小，而不是指示两个字符串是否相等。
* 如果给定的S与()相等，返回值应当是0。
*/
if(!StrCompare(S, emp)) {
*L = NULL;
} else {
*L = (GList) malloc(sizeof(GLNode));
if(*L == NULL) {
exit(OVERFLOW);
}
// 初始化标记为0，意思是该结点未访问
(*L)->mark = 0;
// 创建原子
if(StrLength(S) == 1) {
(*L)->tag = Atom;
(*L)->Node.atom = S[1];
} else {
(*L)->tag = List;
p = *L;
// 去掉最外层括号
SubString(sub, S, 2, StrLength(S) - 2);
// 重复建n个子表
do {
// 从sub中分离出表头串hsub，分离完成后，sub也会发生变化
sever(hsub, sub);
// 递归创建广义表
CreateGList(&(p->Node.ptr.hp), hsub);
q = p;
// 如果表尾不为空，需要继续处理表尾
if(!StrEmpty(sub)) {
p = (GList) malloc(sizeof(GLNode));
if(p == NULL) {
exit(OVERFLOW);
}
// 初始化标记为0，意思是该结点未访问
p->mark = 0;
p->tag = List;
q->Node.ptr.tp = p;
}
} while(!StrEmpty(sub));
q->Node.ptr.tp = NULL;
}
}
return OK;
}
/*
* 图形化输出
*
* 带括号输出广义表L。
*/
void PrintGList(GList L) {
Print(L, Head);
printf("\n");
}
/*
* 图形化输出的内部实现，mark是图形化输出标记。
*/
static void Print(GList L, Mark mark) {
// L为空
if(L == NULL) {
if(mark == Head) {
printf("(");
}
printf(")");
// L不为空时
} else {
// 对于原子结点，输出原子
if(L->tag == Atom) {
printf("%c", L->Node.atom);
// 对于子表结点，要对表头、表尾分别讨论
} else {
if(mark == Head) {
printf("(");
} else {
printf(",");
}
Print(L->Node.ptr.hp, Head);
Print(L->Node.ptr.tp, Tail);
}
}
}
/*
* ████████ 算法5.8 ████████
*
* 将非空串str分割成两部分：hsub为第一个','之前的子串，str为第一个','之后的子串。
*
*【注】
* 1.这里假设字符串str输入正确，其中无空白符号，且str【已经脱去最外层括号】。
* 2.分离完成后，str也会发生变化
*/
static void sever(SString hstr, SString str) {
int i, k, n;
SString ch;
n = StrLength(str);
i = 0; // 遍历字符串时的游标
k = 0; // 标记遇到的未配对括号数量
do {
++i;
// 截取str第一个字符
SubString(ch, str, i, 1);
if(ch[1] == '(') {
++k;
}
if(ch[1] == ')') {
--k;
}
} while(i < n && (ch[1] != ',' || k != 0));
// 如果存在多个广义表结点
if(i < n) {
SubString(hstr, str, 1, i - 1);
SubString(str, str, i + 1, n - i);
// 只有一个广义表结点
} else {
StrCopy(hstr, str);
ClearString(str);
}
}

96
CLion/CourseBook/0803_GarbageCollection/GList-HT.h Normal file
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/*============================
* 广义表的头尾链表存储表示
*
* 包含算法: 5.5、5.6、5.7、5.8
=============================*/
#ifndef GLIST_HT_H
#define GLIST_HT_H
#include <stdio.h>
#include <stdlib.h> // 提供 malloc、realloc、free、exit 原型
#include "Status.h" //**▲01 绪论**//
#include "SString.h" //**▲04 串**//
/* 原子元素类型 */
typedef char AtomType;
/*
* 广义表结点标记
*
* Atom-0：原子结点
* List-1：表结点
*/
typedef enum { Atom, List } ElemTag;
/* 广义表（头尾链表存储表示）类型定义 */
typedef struct GLNode {
int mark; // 为第8章第5节新增的变量，用来给广义表打上遍历标记，会在创建中初始化为0
ElemTag tag; // 公共标记，用于区分原子结点和表结点
// 原子结点和表结点的联合部分
union {
AtomType atom; // atom是原子结点的值域，AtomType由用户定义
struct {
struct GLNode* hp; // 指向表头
struct GLNode* tp; // 指向表尾
} ptr; // 表结点的指针域
} Node;
} GLNode;
/* 广义表类型 */
typedef GLNode* GList;
/*
* 图形化输出标记
*
* Head代表广义表指针来自表头
* Tail代表广义表指针来自表尾
*/
typedef enum { Head, Tail } Mark;
/*
* 初始化
*
* 初始化空的广义表，长度为0，深度为1。
*
*【注】
* 需要对每一层去掉括号考察
*/
Status InitGList(GList* L);
/*
* ████████ 算法5.7 ████████
*
* 创建
*
* 由字符串S创建广义表L。
*/
Status CreateGList(GList* L, SString S);
/*
* 图形化输出
*
* 带括号输出广义表L。
*/
void PrintGList(GList L);
/*
* 图形化输出的内部实现，mark是图形化输出标记。
*/
static void Print(GList L, Mark mark);
/*
* ████████ 算法5.8 ████████
*
* 将非空串str分割成两部分：hsub为第一个','之前的子串，str为第一个','之后的子串。
*
*【注】
* 1.这里假设字符串str输入正确，其中无空白符号，且str【已经脱去最外层括号】。
* 2.分离完成后，str也会发生变化
*/
static void sever(SString hstr, SString str);
#endif

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#include <stdio.h>
#include "GarbageCollection.h" //**▲08 动态存储管理**//
// 遍历广义表
void Traverse(GList L, void(Visit)(GList));
// 打印广义表结点信息
void PrintInfo(GList L);
int main(int argc, char* argv[]) {
GList G;
printf("创建并输出广义表：");
{
SString S;
char* s = "((),(e),(a,(b,c,d)))";
InitGList(&G);
StrAssign(S, s);
CreateGList(&G, S);
PrintGList(G);
printf("\n");
}
PressEnterToContinue(debug);
printf("████████ MakeList \n");
{
printf("访问前的标志状态...\n");
Traverse(G, PrintInfo);
printf("\n");
MakeList(G);
printf("访问后的标志状态...\n");
Traverse(G, PrintInfo);
printf("\n");
}
PressEnterToContinue(debug);
return 0;
}
// 遍历广义表
void Traverse(GList L, void(Visit)(GList)) {
if(L == NULL) {
return;
}
Visit(L);
if(L->tag == List) {
Traverse(L->Node.ptr.hp, Visit);
Traverse(L->Node.ptr.tp, Visit);
}
}
// 打印广义表结点信息
void PrintInfo(GList L) {
if(L->tag == Atom) {
printf("mark = %d 原子结点：%c\n", L->mark, L->Node.atom);
} else {
printf("mark = %d 表结点\n", L->mark);
}
}

78
CLion/CourseBook/0803_GarbageCollection/GarbageCollection.c Normal file
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@@ -0,0 +1,78 @@
/*==============
* 无用单元收集
*
* 包含算法: 8.3
===============*/
#include "GarbageCollection.h"
/*
* ████████ 算法8.3 ████████
*
* 遍历广义表(不使用栈)。
*/
void MakeList(GList G) {
GList t, p, q;
Status finished;
if(!G || G->mark != 0) {
return;
}
t = NULL; // t为p的母表
p = G;
finished = FALSE;
while(!finished) {
while(p->mark == 0) {
p->mark = 1; // MakeHead(p)的细化
q = p->Node.ptr.hp; // q指向p的表头
if(q != NULL && q->mark == 0) {
// 表头为原子结点
if(q->tag == Atom) {
q->mark = 1;
// 继续遍历子表
} else {
p->Node.ptr.hp = t;
p->tag = Atom;
t = p;
p = q;
}
}
} // 完成对表头的标记
q = p->Node.ptr.tp;
// 继续遍历表尾
if(q != NULL && q->mark == 0) {
p->Node.ptr.tp = t;
t = p;
p = q;
// BackTrack(finished)的细化
} else {
// 表结点，从表尾回溯
while(t && t->tag == List) {
q = t;
t = q->Node.ptr.tp;
q->Node.ptr.tp = p;
p = q;
}
// 结束
if(t == NULL) {
finished = TRUE;
// 从表头回溯
} else {
q = t;
t = q->Node.ptr.hp;
q->Node.ptr.hp = p;
p = q;
p->tag = List;
}// 继续遍历表尾
}
}
}

21
CLion/CourseBook/0803_GarbageCollection/GarbageCollection.h Normal file
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@@ -0,0 +1,21 @@
/*==============
* 无用单元收集
*
* 包含算法: 8.3
===============*/
#ifndef GARBAGECOLLECTION_H
#define GARBAGECOLLECTION_H
#include <stdio.h>
#include "Status.h" //**▲01 绪论**//
#include "GList-HT.h" //**▲05 数组和广义表**//
/*
* ████████ 算法8.3 ████████
*
* 遍历广义表(不使用栈)。
*/
void MakeList(GList G);
#endif

167
CLion/CourseBook/0803_GarbageCollection/SString.c Normal file
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@@ -0,0 +1,167 @@
/*=============================
* 串的定长顺序存储表示（顺序串）
*
* 包含算法: 4.1、4.2、4.3、4.5
==============================*/
#include "SString.h" //**▲04 串**//
/*
* 初始化
*
* 构造一个值为chars的串T。
*
*【注】
* 该操作属于最小操作子集
*/
Status StrAssign(SString T, const char* chars) {
int i, len;
len = (int) strlen(chars);
// chars过长
if(len > MAXSTRLEN) {
return ERROR;
}
T[0] = len;
for(i = 1; i <= len; i++) {
T[i] = chars[i - 1];
}
return OK;
}
/*
* 清空
*
* 将串S清空。
*/
Status ClearString(SString S) {
// 只需要将长度置为0就可以
S[0] = 0;
return OK;
}
/*
* 判空
*
* 判断串S中是否包含有效数据。
*
* 返回值：
* TRUE : 串S为空
* FALSE: 串S不为空
*/
Status StrEmpty(SString S) {
return S[0] == 0 ? TRUE : FALSE;
}
/*
* 计数
*
* 返回串S中元素的个数。
*
*【注】
* 该操作属于最小操作子集
*/
int StrLength(SString S) {
return S[0];
}
/*
* ████████ 算法4.3 ████████
*
* 求子串
*
* 用Sub返回S[pos, pos+len-1]。
* 返回值指示是否截取成功。
*
*【注】
* 该操作属于最小操作子集
*/
Status SubString(SString Sub, SString S, int pos, int len) {
int i;
if(pos < 1 || pos > S[0] || len < 0 || pos + len - 1 > S[0]) {
return ERROR;
}
// 复制元素
for(i = 1; i <= len; i++) {
Sub[i] = S[pos + i - 1];
}
// 确定新长度
Sub[0] = len;
return OK;
}
/*
* 比较
*
* 比较串S和串T，返回比较结果。
*
*【注】
* 该操作属于最小操作子集
*/
int StrCompare(SString S, SString T) {
int i = 1;
while(i <= S[0] && i <= T[0]) {
// 遇到不同的字符时，比较其大小
if(S[i] != T[i]) {
return S[i] - T[i];
}
i++;
}
return S[0] - T[0];
}
/*
* 复制
*
* 将串S复制到串T。
*/
Status StrCopy(SString T, SString S) {
int i;
// 连同长度信息一起复制
for(i = 0; i <= S[0]; i++) {
T[i] = S[i];
}
return OK;
}
/*
* 清理字符串S中的空白，包括清理不可打印字符和清理空格。
*
*【注】
* 该函数是在本章中新增的。
*/
Status ClearBlank(SString S) {
int i, j;
// 如果是空串
if(S[0] == 0) {
return ERROR;
}
for(i = 1, j = 0; i <= S[0]; i++) {
// 如果遇到空白，则略过
if(S[i] == ' ' || !isprint(S[i])) {
continue;
}
j++;
S[j] = S[i];
}
S[0] = j;
return OK;
}

110
CLion/CourseBook/0803_GarbageCollection/SString.h Normal file
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@@ -0,0 +1,110 @@
/*=============================
* 串的定长顺序存储表示（顺序串）
*
* 包含算法: 4.1、4.2、4.3、4.5
==============================*/
#ifndef SSTRING_H
#define SSTRING_H
#include <stdio.h>
#include <string.h> // 提供 strlen 原型
#include <ctype.h> // 提供 isprint 原型
#include "Status.h" //**▲01 绪论**//
/* 宏定义 */
#define MAXSTRLEN 255 // 顺序串的最大串长
/*
* 串的顺序存储类型定义
*
* 注：有效元素从SString的1号单元开始存储
* SString的0号单元用来存储其长度
*/
typedef unsigned char SString[MAXSTRLEN + 1]; // 0号单元存放串的长度
/*
* ████ 提示 ████
*
* 遵循教材的书写习惯，pos指示字符的位序(不是索引)，从1开始计数
*/
/*
* 初始化
*
* 构造一个值为chars的串T。
*
*【注】
* 该操作属于最小操作子集
*/
Status StrAssign(SString T, const char* chars);
/*
* 清空
*
* 将串S清空。
*/
Status ClearString(SString S);
/*
* 判空
*
* 判断串S中是否包含有效数据。
*
* 返回值：
* TRUE : 串S为空
* FALSE: 串S不为空
*/
Status StrEmpty(SString S);
/*
* 计数
*
* 返回串S中元素的个数。
*
*【注】
* 该操作属于最小操作子集
*/
int StrLength(SString S);
/*
* ████████ 算法4.3 ████████
*
* 求子串
*
* 用Sub返回S[pos, pos+len-1]。
* 返回值指示是否截取成功。
*
*【注】
* 该操作属于最小操作子集
*/
Status SubString(SString Sub, SString S, int pos, int len);
/*
* 比较
*
* 比较串S和串T，返回比较结果。
*
*【注】
* 该操作属于最小操作子集
*/
int StrCompare(SString S, SString T);
/*
* 复制
*
* 将串S复制到串T。
*/
Status StrCopy(SString T, SString S);
/*
* 清理字符串S中的空白，包括清理不可打印字符和清理空格。
*
*【注】
* 该函数是在本章中新增的。
*/
Status ClearBlank(SString S);
#endif

4
CLion/CourseBook/CMakeLists.txt
View File

@@ -57,3 +57,7 @@ add_subdirectory(0708_ArticulationPoints)
add_subdirectory(0709_TopologicalSorting)
add_subdirectory(0710_CriticalPathMethod)
add_subdirectory(0711_ShortestPaths)
add_subdirectory(0801_BoundaryTagMethod)
add_subdirectory(0802_BuddySystem)
add_subdirectory(0803_GarbageCollection)

48
Dev-C++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod-main.cpp Normal file
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@@ -0,0 +1,48 @@
#include <stdio.h>
#include "BoundaryTagMethod.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
int main(int argc, char* argv[]) {
Space pav;
Space p[12]; // <20><>¼<EFBFBD><C2BC><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ָ<EFBFBD><D6B8>
int s[12] = {10, 20, 30, 50, 5, 15, 10, 5, 15, 15, 2, 20}; // <20><><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>С
int i = 0;
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InitSpace \n");
{
int max = 200; // <20><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>Ϊ20<32>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>Ǵ<EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>
printf("<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD>ǰ<EFBFBD>ڴ沼<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>\n", max);
pav = InitSpace(max);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AllocBoundTag \n");
{
for(i = 0; i < 12; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %2d> <20><><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>󣬵<EFBFBD>ǰ<EFBFBD>ڴ沼<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>\n", i + 1, s[i]);
p[i] = AllocBoundTag(&pav, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FreeBoundTag \n");
{
// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
int a[10] = {7, 3, 10, 6, 8, 5, 11, 1, 0, 4};
for(i = 0; i < 10; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD> p%d ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>...\n", a[i] + 1);
FreeBoundTag(&pav, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

331
Dev-C++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.cpp Normal file
View File

@@ -0,0 +1,331 @@
/*==============
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.1
===============*/
#include "BoundaryTagMethod.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
/*
* ȫ<>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զָ<D4B6><D6B8><EFBFBD><EFBFBD>ʼ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>
* <20>ñ<EFBFBD><C3B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
* 1.<2E><><EFBFBD><EFBFBD>׷<EFBFBD><D7B7><EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3><EFBFBD><EFBFBD>鿴<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.ָʾ<D6B8>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>ͽ<EFBFBD>β
*/
static Space av;
// <20><>¼<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׷<EFBFBD><D7B7><EFBFBD>ڴ沼<DAB4><E6B2BC>
static int len;
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD>ܴ<EFBFBD>СΪn<CEAA><6E><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot<6F><74>
*/
Space InitSpace(int n) {
Space space, head, foot;
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
space = (Space) malloc(n * sizeof(WORD));
if(space == NULL) {
return NULL;
}
// <20><>ʼ<EFBFBD><CABC>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>Ϣ
head = space;
head->llink = space; // ǰ<><C7B0>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
head->rlink = space; // <20><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
head->size = n; // <20>ռ<EFBFBD><D5BC><EFBFBD>С<EFBFBD><D0A1><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot
head->tag = 0; // <20><><EFBFBD>ǿռ<C7BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
// <20><>ʼ<EFBFBD><CABC><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD>Ϣ
foot = FootLoc(head); // <20><>ʼ<EFBFBD><CABC><EFBFBD>ײ<EFBFBD>ָ<EFBFBD><D6B8>
foot->uplink = head; // <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
foot->tag = 0; // <20><><EFBFBD>ǿռ<C7BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD>¿ռ<C2BF><D5BC><EFBFBD><EFBFBD><EFBFBD>ʼλ<CABC>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD>
av = space;
len = n;
return space;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>pav<61><76><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn<CEAA>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
* Ϊ<><CEAA>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>龡<EFBFBD><E9BEA1><EFBFBD><EFBFBD><EFBFBD>ȷֲ<C8B7><D6B2><EFBFBD>ÿ<EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD>ѿռ<D1BF>ָ<EFBFBD><D6B8>pav<61><76>ǰ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><CEBC>̲ġ<CCB2>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.Ϊ<>˱<EFBFBD><CBB1><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>죬<EFBFBD><ECA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ݲ<EFBFBD>e<EFBFBD><65><EFBFBD><EFBFBD><EFBFBD>庬<EFBFBD><E5BAAC><EFBFBD>ο<EFBFBD><CEBF>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ɻ<EFBFBD><C9BB><EFBFBD><EFBFBD>Ŀռ䡣
* <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ10<31><30><EFBFBD>ֵĿռ䣬<D5BC><E4A3AC>ÿ<EFBFBD><C3BF><EFBFBD>ռ<EFBFBD><D5BC>ְ<EFBFBD><D6B0><EFBFBD>head<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ洢<D6B4>ռ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
* <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>СӦΪ12<31><32><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>"12"<22><><EFBFBD><EFBFBD>n<EFBFBD>ĺ<EFBFBD><C4BA>塣
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD>ᵽ"head<61><64>foot<6F>ڷ<EFBFBD><DAB7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>α<EFBFBD><CEB1><EFBFBD><EFBFBD>д<EFBFBD>ķ<EFBFBD><C4B7>㡣ʵ<E3A1A3><CAB5>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Dz<EFBFBD><C7B2>ܺ<EFBFBD><DCBA>Եġ<D4B5>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ԭʼ<D4AD><CABC><EFBFBD><EFBFBD><EFBFBD>Ŀռ䣬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>к<EFBFBD><D0BA>Կռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>̲<EFBFBD>α<EFBFBD><CEB1>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD>ν<EFBFBD><CEBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
Space AllocBoundTag(Space* pav, int n) {
Space p, f;
/*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>жϣ<D0B6><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>3<EFBFBD><33><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ء<EFBFBD>
* <20><>Ϊhead<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>2<EFBFBD><32><EFBFBD>ֿռ䣬<D5BC>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵĻ<D6B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>Ϊ3<CEAA><33><EFBFBD>֡<EFBFBD>
*/
if(n < 3) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD>3\n");
return NULL;
}
// <20><><EFBFBD>Ҳ<EFBFBD>С<EFBFBD><D0A1>n<EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
for(p = *pav; p && p->size < n && p->rlink != *pav; p = p->rlink) {
}
// <20>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD>ؿ<EFBFBD>ָ<EFBFBD><D6B8>
if(!p || p->size < n) {
return NULL;
}
/* <20><><EFBFBD>ˣ<EFBFBD>pָ<70><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD> */
// <20><>fָ<66><D6B8><EFBFBD>ÿ<EFBFBD><C3BF>п<EFBFBD><D0BF>ĵײ<C4B5>
f = FootLoc(p);
// pavָ<76><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA>̽<EFBFBD><CCBD>㣬<EFBFBD><E3A3AC>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>
*pav = p->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><CBB6>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><=e<><65>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD>
if(p->size - n <= e) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>pavָ<76><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pav<61><76>p<EFBFBD><70><EFBFBD>ȣ<EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD>ʱֻ<CAB1><D6BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD>(ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˫ѭ<CBAB><D1AD><EFBFBD><EFBFBD>)
if(*pav == p) {
*pav = NULL; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣһ<CAA3><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ˣ<EFBFBD><CBA3><EFBFBD>ô<EFBFBD><C3B4>ռ<EFBFBD>ú󣬿<C3BA><F3A3ACBF><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ձ<EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>
} else {
(*pav)->llink = p->llink; // <20>޸<EFBFBD>pav<61><76>ǰ<EFBFBD><C7B0>
p->llink->rlink = *pav; // <20>޸<EFBFBD>pavǰ<76><C7B0><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̲<EFBFBD>û<EFBFBD>иı䣬<C4B1><E4A3AC><EFBFBD><EFBFBD>Ϊ<EFBFBD>˷<EFBFBD><CBB7>㽫<EFBFBD><E3BDAB><EFBFBD>Ļ<EFBFBD><C4BB>ղ<EFBFBD><D5B2><EFBFBD> */
}
// <20><><EFBFBD><EFBFBD>ռ<EFBFBD>ÿ<EFBFBD>Ϊռ<CEAA><D5BC>״̬
p->tag = f->tag = 1;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>ʵ<EFBFBD>ʷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", n, n + e, AvailableSpace(*pav));
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ܴ<EFBFBD><DCB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>иռ<EEA3AC>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>
} else {
f->tag = 1; // <20>޸ķ<DEB8><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD>ʾ<EFBFBD>䴦<EFBFBD><E4B4A6>ռ<EFBFBD><D5BC>״̬
p->size -= n; // <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
f = FootLoc(p); // <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µײ<C2B5>λ<EFBFBD><CEBB>
f->tag = 0; // <20><><EFBFBD><EFBFBD><EFBFBD>µײ<C2B5><D7B2><EFBFBD>־Ϊ<D6BE><CEAA><EFBFBD><EFBFBD>
f->uplink = p; // <20>µײ<C2B5><D7B2><EFBFBD>Ȼָ<C8BB><D6B8><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ͷ<EFBFBD><CDB7>
p = f + 1; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>λ<EFBFBD><CEBB>
p->tag = 1; // <20><><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>־Ϊռ<CEAA><D5BC>
p->size = n; // <20><><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20>޸ķ<DEB8><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28>̲<EFBFBD><CCB2><EFBFBD>ȱʧ<C8B1>˴˲<CBB4><CBB2><EFBFBD>)
(FootLoc(p))->uplink = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>벢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", n, AvailableSpace(*pav));
}
// <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
return p;
}
/*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>"<22>ͷſ<CDB7>"<22><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>pָ<70><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
*/
void FreeBoundTag(Space* pav, Space p) {
Space h, f, q;
int Ltag, Rtag;
if(p == NULL) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD>ڴ<EFBFBD>ָ<EFBFBD><EFBFBD>Ϊ<EFBFBD>ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
Ltag = p == av ? 1 : (p - 1)->tag; // <20><>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD>ر<EFBFBD>ע<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pλ<70><CEBB><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>á<EFBFBD>
Rtag = (p + p->size) == (av + len) ? 1 : (p + p->size)->tag; // <20><>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD>ر<EFBFBD>ע<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pλ<70><CEBB><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>á<EFBFBD>
/*
* 1.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>p<EFBFBD><70><EFBFBD>뵽pav<61><76>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD>(<28><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD>뵽֮<EBB5BD><D6AE>Ҳ<EFBFBD>ǿ<EFBFBD><C7BF>Ե<EFBFBD>)
*/
if(Ltag == 1 && Rtag == 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>...\n", p->size);
f = FootLoc(p);
f->uplink = p;
f->tag = 0;
p->tag = 0;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ʱ<EFBFBD><CAB1>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>p<EFBFBD><70>Ϊ<EFBFBD>µĶ<C2B5><C4B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
if((*pav) == NULL) {
*pav = p->llink = p->rlink = p;
// <20><><EFBFBD>򣬽<EFBFBD><F2A3ACBD><EFBFBD>p<EFBFBD><70><EFBFBD>뵽pav֮ǰ
} else {
q = (*pav)->llink;
p->rlink = *pav;
p->llink = q;
q->rlink = (*pav)->llink = p;
// <20><><EFBFBD><EFBFBD><EFBFBD>ͷŵĽ<C5B5><C4BD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>´η<C2B4><CEB7><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Ȳ<EFBFBD><C8B2>ҵĽ<D2B5><C4BD><EFBFBD>
*pav = p;
}
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 2.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷſ<CDB7>
*/
if(Ltag == 0 && Rtag == 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>...\n", p->size);
h = (p - 1)->uplink; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
h->size += p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
f = FootLoc(p); // <20><><EFBFBD>ͷſ<CDB7><C5BF>ĵײ<C4B5><D7B2><EFBFBD>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
f->uplink = h;
f->tag = 0;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 3.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ飬<C3BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
if(Ltag == 1 && Rtag == 0) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ飬<C3BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>...\n", p->size);
h = p + p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
f = FootLoc(h); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
f->uplink = p; // <20>ͷſ<CDB7><C5BF><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
p->tag = 0;
p->size += h->size;
// <20>ͷſ<CDB7><C5BF><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
p->llink = h->llink;
p->rlink = h->rlink;
h->llink->rlink = p;
h->rlink->llink = p;
// pavָ<76><D6B8><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
*pav = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 4.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷſ顢<C5BF><E9A1A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
if(Ltag == 0 && Rtag == 0) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>...\n", p->size);
h = (p - 1)->uplink; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
q = p + p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
f = FootLoc(q); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
h->size += p->size + q->size; // <20>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>С
f->uplink = h; // <20>¿<EFBFBD><C2BF>ײ<EFBFBD><D7B2><EFBFBD>ϢҲҪ<D2B2><D2AA><EFBFBD><EFBFBD>
// <20>Ƴ<EFBFBD><C6B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
q->rlink->llink = q->llink;
q->llink->rlink = q->rlink;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
}
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout() {
Space p;
int count;
int i;
p = av;
count = av->size;
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("<EFBFBD><EFBFBD>");
} else {
printf("<EFBFBD><EFBFBD>");
}
if(i == count && count < len) {
p = p + p->size;
count += p->size;
printf("|");
} else {
printf(" ");
}
// ÿ<><C3BF>20<32><30><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
if(i % 20 == 0) {
printf("\n");
}
}
if(len % 20 != 0) {
printf("\n");
}
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>пռ<D0BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE>ӡ<EFBFBD><D3A1>
*/
static int AvailableSpace(Space pav) {
Space p;
int count;
if(pav == NULL) {
return 0;
}
p = pav;
count = 0;
do {
count += p->size;
p = p->rlink;
} while(p != pav);
return count;
}

82
Dev-C++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.dev Normal file
View File

@@ -0,0 +1,82 @@
[Project]
FileName=BoundaryTagMethod.dev
Name=BoundaryTagMethod
Type=1
Ver=2
ObjFiles=
Includes=
Libs=
PrivateResource=
ResourceIncludes=
MakeIncludes=
Compiler=
CppCompiler=
Linker=
IsCpp=0
Icon=
ExeOutput=
ObjectOutput=
LogOutput=
LogOutputEnabled=0
OverrideOutput=0
OverrideOutputName=
HostApplication=
UseCustomMakefile=0
CustomMakefile=
CommandLine=
Folders=
IncludeVersionInfo=0
SupportXPThemes=0
CompilerSet=1
CompilerSettings=0000000000000000001000000
UnitCount=3
[VersionInfo]
Major=1
Minor=0
Release=0
Build=0
LanguageID=1033
CharsetID=1252
CompanyName=
FileVersion=
FileDescription=Developed using the Dev-C++ IDE
InternalName=
LegalCopyright=
LegalTrademarks=
OriginalFilename=
ProductName=
ProductVersion=
AutoIncBuildNr=0
SyncProduct=1
[Unit2]
FileName=BoundaryTagMethod.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit3]
FileName=BoundaryTagMethod-main.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit1]
FileName=BoundaryTagMethod.h
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=

97
Dev-C++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.h Normal file
View File

@@ -0,0 +1,97 @@
/*==============
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.1
===============*/
#ifndef BOUNDARYTAGMETHOD_H
#define BOUNDARYTAGMETHOD_H
#include <stdio.h>
#include <stdlib.h>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
/* <20>궨<EFBFBD><EAB6A8> */
#define e 5 // <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ݲ<EFBFBD>
#define FootLoc(p) p+(p->size)-1 // <20><>pָ<70>붨λ<EBB6A8><CEBB>p<EFBFBD><70>ָ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ĵײ<C4B5>
/*
* <20>ڴ<EFBFBD>"<22><>"<22><><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>
*
* <20><>ν"<22><>"<22><>ָ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڡ<D6BD>
* һ<><D2BB>"<22><>"<22>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ڶ<EFBFBD>"<22><>"<22>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><CEB6><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
typedef struct WORD {
/*
* ע<><D7A2>
* <20>̲<EFBFBD><CCB2>н<EFBFBD>llink<6E><6B>uplink<6E><6B>װ<EFBFBD><D7B0><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>˸о<CBB8><D0BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0>Щ<EFBFBD><D0A9><EFBFBD>ߡ<EFBFBD>
* һ<><D2BB><EFBFBD>棬head<61><64>foot<6F>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵֻ<CAB5><D6BB>tag<61><67><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC>ôӦ<C3B4><D3A6><EFBFBD><EFBFBD>size<7A><65>rlinkҲ<6B><D2B2>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><>һ<EFBFBD><D2BB><EFBFBD>棬<EFBFBD><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0>ʡ<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ޣ<EFBFBD><DEA3><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>Ӱ<EFBFBD><D3B0><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD>Ŀɶ<C4BF><C9B6>ԡ<EFBFBD>
* <20><><EFBFBD><EFBFBD>ֻ<EFBFBD>ǽ<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ϵͳ<CFB5><CDB3><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD>Կռ俼<D5BC><E4BFBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>ԭ<EFBFBD><D4AD>չʾΪ<CABE><CEAA>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><><EFBFBD>⣬<EFBFBD>̲<EFBFBD><CCB2>е<EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>û<EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>ġ<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD>˽̲<CBBD><CCB2>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>
* <20><><EFBFBD><EFBFBD><EFBFBD>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բο<D4B2>CFree<65><65>֧<EFBFBD>Ĵ<EFBFBD><C4B4>롣
*/
int tag; // <20><><EFBFBD><EFBFBD>־<EFBFBD><D6BE>0<EFBFBD><30><EFBFBD>У<EFBFBD>1ռ<31>ã<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
struct WORD* llink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
struct WORD* rlink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><CCBD><EFBFBD>
int size; // ͷ<><CDB7><EFBFBD>򣬿<EFBFBD><F2A3ACBF><EFBFBD>С
struct WORD* uplink; // <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>򱾽<EFBFBD><F2B1BEBD><EFBFBD>ͷ<EFBFBD><CDB7>
} WORD;
typedef WORD* Space; // Space<63><65>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪn<CEAA><6E><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot<6F><74>
*/
Space InitSpace(int n);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>pav<61><76><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn<CEAA>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
* Ϊ<><CEAA>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>龡<EFBFBD><E9BEA1><EFBFBD><EFBFBD><EFBFBD>ȷֲ<C8B7><D6B2><EFBFBD>ÿ<EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD>ѿռ<D1BF>ָ<EFBFBD><D6B8>pav<61><76>ǰ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><CEBC>̲ġ<CCB2>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.Ϊ<>˱<EFBFBD><CBB1><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>죬<EFBFBD><ECA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ݲ<EFBFBD>e<EFBFBD><65><EFBFBD><EFBFBD><EFBFBD>庬<EFBFBD><E5BAAC><EFBFBD>ο<EFBFBD><CEBF>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ɻ<EFBFBD><C9BB><EFBFBD><EFBFBD>Ŀռ䡣
* <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ10<31><30><EFBFBD>ֵĿռ䣬<D5BC><E4A3AC>ÿ<EFBFBD><C3BF><EFBFBD>ռ<EFBFBD><D5BC>ְ<EFBFBD><D6B0><EFBFBD>head<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ洢<D6B4>ռ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
* <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>СӦΪ12<31><32><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>"12"<22><><EFBFBD><EFBFBD>n<EFBFBD>ĺ<EFBFBD><C4BA>塣
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD>ᵽ"head<61><64>foot<6F>ڷ<EFBFBD><DAB7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>α<EFBFBD><CEB1><EFBFBD><EFBFBD>д<EFBFBD>ķ<EFBFBD><C4B7>㡣ʵ<E3A1A3><CAB5>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Dz<EFBFBD><C7B2>ܺ<EFBFBD><DCBA>Եġ<D4B5>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ԭʼ<D4AD><CABC><EFBFBD><EFBFBD><EFBFBD>Ŀռ䣬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>к<EFBFBD><D0BA>Կռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>̲<EFBFBD>α<EFBFBD><CEB1>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD>ν<EFBFBD><CEBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
Space AllocBoundTag(Space* pav, int n);
/*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>
*/
void FreeBoundTag(Space* pav, Space p);
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout();
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>пռ<D0BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE>ӡ<EFBFBD><D3A1>
*/
static int AvailableSpace(Space pav);
#endif

45
Dev-C++/CourseBook/0802_BuddySystem/BuddySystem-main.cpp Normal file
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@@ -0,0 +1,45 @@
#include <stdio.h>
#include "BuddySystem.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
int main(int argc, char* argv[]) {
FreeList avail;
WORD* p[8]; // <20><>¼<EFBFBD><C2BC><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ָ<EFBFBD><D6B8>
int s[8] = {4, 5, 6, 7, 1, 5, 3, 9}; // <20><><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>С
int i;
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InitSpace \n");
{
printf("<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>...\n");
InitSpace(avail);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AllocBuddy \n");
{
for(i = 0; i < 8; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>СΪ %d <20><><EFBFBD>ֵ<EFBFBD><D6B5>ڴ<EFBFBD><DAB4><EFBFBD>...\n", s[i]);
p[i] = AllocBuddy(avail, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FreeBuddy \n");
{
// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
int a[8] = {2, 0, 5, 7, 1, 4, 3, 6};
for(i = 0; i < 8; i++) {
FreeBuddy(avail, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

284
Dev-C++/CourseBook/0802_BuddySystem/BuddySystem.cpp Normal file
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/*==============
* <20><><EFBFBD><EFBFBD>ϵͳ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.2
===============*/
#include "BuddySystem.h"
// <20><>¼<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD>õ<EFBFBD>
WORD* start;
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪ2^M<><4D><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>
*/
void InitSpace(FreeList avail) {
int k;
WORD* r;
// <20><><EFBFBD><EFBFBD>M+1<><31>Ԫ<EFBFBD><D4AA>
for(k = 0; k <= M; k++) {
avail[k].nodesize = (int) pow(2, k);
avail[k].first = NULL;
}
r = (WORD*) malloc((int) pow(2, M) * sizeof(WORD));
if(r == NULL) {
exit(OVERFLOW);
}
// <20><><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>Ϣ
r->llink = r->rlink = r;
r->tag = 0;
r->kval = M;
avail[M].first = r;
start = r;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>avail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn(ԭʼֵ)<29>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭʼ<D4AD>ռ䡣
* ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵ<EFBFBD>head<61><64>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>(n+1)<29><><EFBFBD>֡<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>㷨8.1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>෴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD>⡣
*/
WORD* AllocBuddy(FreeList avail, int n) {
int k, i;
WORD* pa, * pre, * suc, * pi;
/*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>жϣ<D0B6><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>1<EFBFBD><31><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ء<EFBFBD>
*/
if(n < 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD>1\n");
return NULL;
}
// <20><><EFBFBD>Ҳ<EFBFBD>С<EFBFBD><D0A1>n<EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
for(k = 0; k <= M && (avail[k].nodesize < n + 1 || !avail[k].first); k++) {
}
// <20>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD>ؿ<EFBFBD>ָ<EFBFBD><D6B8>
if(k > M) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>㹻<EFBFBD>Ŀ<EFBFBD><EFBFBD>п<EFBFBD>\n");
return NULL;
}
pa = avail[k].first; // ָ<><D6B8><EFBFBD>ɷ<EFBFBD><C9B7><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1>ĵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
pre = pa->llink; // <20>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD>
suc = pa->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1><EFBFBD>Ϊ<EFBFBD><CEAA>
if(pa == suc) {
avail[k].first = NULL;
// <20><><EFBFBD>򣬴<EFBFBD><F2A3ACB4><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>ժ<EFBFBD><D5AA>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD>ͷָ<CDB7><D6B8>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>
} else {
pre->rlink = suc;
suc->llink = pre;
avail[k].first = suc;
}
/*
* <20><>k-1<><31><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>FreeList<73><74><EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>Ŀ<EFBFBD><C4BF>п顣
* ʣ<><CAA3><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF>Ƕ<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC>IJ<EFBFBD><C4B2>֡<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>2^m-2^n = 2^n+2^(n+1)+...+2^(m-1)
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>Ϊ2^16<31><36><EFBFBD><EFBFBD>ʱ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD>1500<30><30><EFBFBD>֣<EFBFBD><D6A3><EFBFBD>ô<EFBFBD><C3B4>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>2^11<31>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>2^16-2^11 = 2^11+2^12+2^13+2^14+2^15<31><35>
* <20><>Щʣ<D0A9><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>Ϊ5<CEAA><35><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF>ֱ<EFBFBD><D6B1>洢<EFBFBD><E6B4A2>15<31><35>14<31><34>13<31><33>12<31><32>11<31><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
for(i = 1; k - i >= 0 && avail[k - i].nodesize >= n + 1; i++) {
pi = pa + (int) pow(2, k - i); // ÿ<>ν<EFBFBD>piָ<69><D6B8>ʣ<EFBFBD><CAA3><EFBFBD>ռ<EFBFBD><D5BC>ĺ<EFBFBD>һ<EFBFBD><D2BB>
pi->rlink = pi->llink = pi; // <20><>ʼ<EFBFBD><CABC>pi<70><69>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD>
pi->tag = 0; // <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
pi->kval = k - i; // <20><><EFBFBD>øÿ<C3B8><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ϊ2^(k-i)
avail[k - i].first = pi;
/*
* ע<><D7A2>
* <20><><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>piֱ<69><D6B1><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD>avail<69>У<EFBFBD><D0A3><EFBFBD>û<EFBFBD>п<EFBFBD><D0BF><EFBFBD>ͬλ<CDAC>ô<EFBFBD><C3B4>᲻<EFBFBD><E1B2BB><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><C4BF>п顣
* <20><><EFBFBD>ﲻ<EFBFBD><EFB2BB>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬλ<CDAC>ô<EFBFBD><C3B4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><C4BF>п飬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ֽ<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD>仰˵<E4BBB0><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ֻҪ<D6BB><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>Ŀ<EFBFBD><C4BF>λ<EFBFBD>ô<EFBFBD><C3B4>Ѿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ˣ<EFBFBD>û<EFBFBD><C3BB><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ž<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>α괦Ѱ<EAB4A6>ҿ<EFBFBD><D2BF>п顣
*/
}
// <20><><EFBFBD><EFBFBD>ʣ<EFBFBD>µ<EFBFBD><C2B5>ǰ<EEBFBF>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF>(<28><><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pa<70><61>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA>̣<EFBFBD><CCA3><EFBFBD>Ϊû<CEAA><C3BB>Ҫ)
pa->tag = 1;
pa->kval = k - (--i);
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><><EFBFBD>֣<EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD> %d <20><><EFBFBD>֣<EFBFBD>ʵ<EFBFBD>ʷ<EFBFBD><CAB7><EFBFBD> %d <20><><EFBFBD><EFBFBD>\n", n, n + 1, (int) pow(2, pa->kval));
return pa;
}
/*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>֤p<D6A4><70>ȡֵ<C8A1><D6B5><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD>Ӧ<EFBFBD><D3A6>ȷ<EFBFBD><C8B7>p<EFBFBD>ںϹ<DABA><CFB9>ķ<EFBFBD>Χ
*/
void FreeBuddy(FreeList avail, WORD* p) {
int k;
WORD* r;
WORD* buddy = Buddy(p);
if(p == NULL) {
return;
}
/*
* <20><><EFBFBD>ｫp<EFBDAB><70><EFBFBD><EFBFBD><EFBFBD>򵥵ز<F2B5A5B5><D8B2>뵽avail<69>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>p<EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>һ<EFBFBD>£<EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD>黹ûƴ<C3BB>Ϻ<EFBFBD>
* 3.pƴ<70>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
*/
if(buddy->tag == 1 || buddy->kval != p->kval || p->kval == M) {
for(k = 0; k <= M && k < p->kval; k++) {
// <20><><EFBFBD><EFBFBD>p<EFBFBD><70><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>
}
// <20>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ۣ<EFBFBD><DBA3><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>巨<EFBFBD><E5B7A8><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD>뵽Ŀ<EBB5BD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if(k <= M && k == p->kval) {
p->tag = 0;
if(avail[k].first == NULL) {
p->llink = p->rlink = p;
} else {
p->llink = avail[k].first->llink;
p->rlink = avail[k].first;
p->llink->rlink = p;
p->rlink->llink = p;
}
avail[k].first = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD>[%d, (2^%d)]<5D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n", (int) (p - start), k, k);
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF>еģ<D0B5><C4A3><EFBFBD>ʱӦ<CAB1><D3A6><EFBFBD><EFBFBD><EFBFBD>кϲ<D0BA><CFB2><EFBFBD><EFBFBD><EFBFBD>
} else {
for(k = 0; k <= M && k < p->kval; k++) {
// <20><><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵIJ<DAB5><C4B2><EFBFBD>
}
// <20>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ۣ<EFBFBD><DBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD><D3BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ժ<EFBFBD><D5AA><EFBFBD><EFBFBD>
if(k <= M && k == p->kval) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>λ<EFBFBD><CEBB>
if(avail[k].first == buddy) {
buddy->rlink->llink = buddy->llink;
buddy->llink->rlink = buddy->rlink;
avail[k].first = buddy->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD>λ<EFBFBD><CEBB>
} else {
for(r = avail[k].first; r->rlink != buddy; r = r->rlink) {
// <20><><EFBFBD>һ<EFBFBD><D2BB>飬rָ<72><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>
}
r->rlink = buddy->rlink;
buddy->rlink->llink = r;
}
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>[%d, (2^%d)]<5D><>[%d, (2^%d)]<5D>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD>", (int) (p - start), k, (int) (buddy - start), k);
// <20>ϲ<EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD>Ҫȷ<D2AA><C8B7><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>鿿ǰ
if(p < buddy) {
p->tag = 0;
} else {
p = buddy;
}
p->kval = k + 1; // ָ<><D6B8><EFBFBD><EFBFBD>һ<EFBFBD>󣬼<EFBFBD><F3A3ACBC><EFBFBD><EFBFBD>ɺϲ<C9BA>
printf("[%d, (2^%d)]\n", (int) (p - start), k + 1);
// <20><><EFBFBD><EFBFBD><EFBFBD>µĿ<C2B5><C4BF>п<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ݹ飬<DDB9>鿴<EFBFBD>ÿ<EFBFBD><C3BF>п<EFBFBD><D0BF>Ƿ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ڿ<EFBFBD><DABF>л<EFBFBD><D0BB><EFBFBD>
FreeBuddy(avail, p);
}
}
}
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout() {
int i, count, total;
WORD* p;
printf("|");
p = start;
count = (int) pow(2, p->kval);
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("_");
} else {
printf("*");
}
// <20><><EFBFBD>뵽<EFBFBD><EBB5BD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
if(i == count && count < (int) pow(2, M)) {
p = start + count;
count += (int) pow(2, p->kval);
printf("|");
}
}
printf("|\n");
}
/*
* <20><><EFBFBD>ҿ<EFBFBD>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
*
* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>԰<EFBFBD><D4B0><EFBFBD><EFBFBD>Ѻ󣬻<D1BA><F3A3ACBB><EFBFBD><EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п黥Ϊ<E9BBA5><CEAA><EFBFBD>顣
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨Ϊ<E3B7A8><CEAA>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp<CEAA><70><EFBFBD><EFBFBD>СΪ2^k<><6B><EFBFBD>ڴ<EFBFBD><DAB4>飺
* 1.<2E><> p MOD 2^(k+1) == 0 ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp+2^k<><6B>
* 2.<2E><> p MOD 2^(k+1) == 2^k ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp-2^k<><6B>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8>
*/
static WORD* Buddy(WORD* p) {
long s, m, n;
if(p == NULL) {
return NULL;
}
// start<72><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ľ<EFBFBD><C4BE><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7>s<EFBFBD><73>p<EFBFBD>ڻ<EFBFBD><DABB><EFBFBD>ϵͳ<CFB5>еľ<D0B5><C4BE>Ե<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>0<EFBFBD><30>ʼ
s = p - start;
if(s < 0) {
return NULL;
}
m = (long) pow(2, p->kval);
n = (long) pow(2, p->kval + 1);
if(s % n == 0) {
return p + m;
}
if(s % n == m) {
return p - m;
}
return NULL;
}

82
Dev-C++/CourseBook/0802_BuddySystem/BuddySystem.dev Normal file
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@@ -0,0 +1,82 @@
[Project]
FileName=BuddySystem.dev
Name=BuddySystem
Type=1
Ver=2
ObjFiles=
Includes=
Libs=
PrivateResource=
ResourceIncludes=
MakeIncludes=
Compiler=
CppCompiler=
Linker=
IsCpp=0
Icon=
ExeOutput=
ObjectOutput=
LogOutput=
LogOutputEnabled=0
OverrideOutput=0
OverrideOutputName=
HostApplication=
UseCustomMakefile=0
CustomMakefile=
CommandLine=
Folders=
IncludeVersionInfo=0
SupportXPThemes=0
CompilerSet=1
CompilerSettings=0000000000000000001000000
UnitCount=3
[VersionInfo]
Major=1
Minor=0
Release=0
Build=0
LanguageID=1033
CharsetID=1252
CompanyName=
FileVersion=
FileDescription=Developed using the Dev-C++ IDE
InternalName=
LegalCopyright=
LegalTrademarks=
OriginalFilename=
ProductName=
ProductVersion=
AutoIncBuildNr=0
SyncProduct=1
[Unit1]
FileName=BuddySystem.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit2]
FileName=BuddySystem.h
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit3]
FileName=BuddySystem-main.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=

90
Dev-C++/CourseBook/0802_BuddySystem/BuddySystem.h Normal file
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@@ -0,0 +1,90 @@
/*==============
* <20><><EFBFBD><EFBFBD>ϵͳ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.2
===============*/
#ifndef BUDDYSYSTEM_H
#define BUDDYSYSTEM_H
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
/* <20>궨<EFBFBD><EAB6A8> */
#define M 6 // <20><><EFBFBD><EFBFBD><EFBFBD>ܿռ<DCBF><D5BC><EFBFBD>СΪ2^M<><4D><EFBFBD>֣<EFBFBD><D6A3>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD><EFBFBD>ΪM+1
/*
* <20>ڴ<EFBFBD>"<22><>"<22><><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>
*
* <20><>ν"<22><>"<22><>ָ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڡ<D6BD>
* һ<><D2BB>"<22><>"<22>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ڶ<EFBFBD>"<22><>"<22>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><CEB6><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
typedef struct WORD {
struct WORD* llink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>ָ<EFBFBD><D6B8>
struct WORD* rlink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>ָ<EFBFBD><D6B8>
int tag; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>־<EFBFBD><D6BE>0:<3A><><EFBFBD>У<EFBFBD>1:ռ<><D5BC>
int kval; // ָʾ<D6B8><CABE><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪKʱ<4B><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD>ÿ<EFBFBD><C3BF>Ĵ<EFBFBD>СΪ2^K
} WORD;
// <20><>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
typedef struct HeadNode {
int nodesize; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF>Ĵ<EFBFBD>С
WORD* first; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ͷָ<CDB7><D6B8>
} FreeList[M + 1];
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪ2^M<><4D><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>
*/
void InitSpace(FreeList avail);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>avail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn(ԭʼֵ)<29>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭʼ<D4AD>ռ䡣
* ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵ<EFBFBD>head<61><64>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>(n+1)<29><><EFBFBD>֡<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>㷨8.1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>෴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD>⡣
*/
WORD* AllocBuddy(FreeList avail, int n);
/*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>֤p<D6A4><70>ȡֵ<C8A1><D6B5><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD>Ӧ<EFBFBD><D3A6>ȷ<EFBFBD><C8B7>p<EFBFBD>ںϹ<DABA><CFB9>ķ<EFBFBD>Χ
*/
void FreeBuddy(FreeList avail, WORD* p);
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout();
/*
* <20><><EFBFBD>ҿ<EFBFBD>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
*
* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>԰<EFBFBD><D4B0><EFBFBD><EFBFBD>Ѻ󣬻<D1BA><F3A3ACBB><EFBFBD><EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п黥Ϊ<E9BBA5><CEAA><EFBFBD>顣
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨Ϊ<E3B7A8><CEAA>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp<CEAA><70><EFBFBD><EFBFBD>СΪ2^k<><6B><EFBFBD>ڴ<EFBFBD><DAB4>飺
* 1.<2E><> p MOD 2^(k+1) == 0 ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp+2^k<><6B>
* 2.<2E><> p MOD 2^(k+1) == 2^k ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp-2^k<><6B>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8>
*/
static WORD* Buddy(WORD* p);
#endif

202
Dev-C++/CourseBook/0803_GarbageCollection/GList-HT.cpp Normal file
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@@ -0,0 +1,202 @@
/*============================
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 5.5<EFBFBD><EFBFBD>5.6<EFBFBD><EFBFBD>5.7<EFBFBD><EFBFBD>5.8
=============================*/
#include "GList-HT.h" //**<2A><>05 <20><><EFBFBD><EFBFBD><EFBFBD>͹<EFBFBD><CDB9><EFBFBD><EFBFBD><EFBFBD>**//
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><>ʼ<EFBFBD><CABC><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<CEAA><31>
*
*<2A><>ע<EFBFBD><D7A2>
* <20><>Ҫ<EFBFBD><D2AA>ÿһ<C3BF><D2BB>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD><C5BF><EFBFBD>
*/
Status InitGList(GList* L) {
if(L == NULL) {
return ERROR;
}
*L = NULL;
return OK;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
Status CreateGList(GList* L, SString S) {
SString emp; // <20><><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
SString hsub, sub;
GList p, q;
if(L == NULL) {
return ERROR;
}
// <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD>еĿհף<D5B0><D7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD>ӡ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD>
ClearBlank(S);
if(StrEmpty(S)) {
return ERROR;
}
StrAssign(emp, "()");
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>봮Ϊ()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
* StrCompare<72>ķ<EFBFBD><C4B7><EFBFBD>ֵָʾ<D6B8><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָʾ<D6B8><CABE><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>ȡ<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>S<EFBFBD><53>()<29><><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>ֵӦ<D6B5><D3A6><EFBFBD><EFBFBD>0<EFBFBD><30>
*/
if(!StrCompare(S, emp)) {
*L = NULL;
} else {
*L = (GList) malloc(sizeof(GLNode));
if(*L == NULL) {
exit(OVERFLOW);
}
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD>˼<EFBFBD>Ǹý<C7B8><C3BD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
(*L)->mark = 0;
// <20><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
if(StrLength(S) == 1) {
(*L)->tag = Atom;
(*L)->Node.atom = S[1];
} else {
(*L)->tag = List;
p = *L;
// ȥ<><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
SubString(sub, S, 2, StrLength(S) - 2);
// <20>ظ<EFBFBD><D8B8><EFBFBD>n<EFBFBD><6E><EFBFBD>ӱ<EFBFBD>
do {
// <20><>sub<75>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>hsub<75><62><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>subҲ<62>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
sever(hsub, sub);
// <20>ݹ鴴<DDB9><E9B4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
CreateGList(&(p->Node.ptr.hp), hsub);
q = p;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2>Ϊ<EFBFBD>գ<EFBFBD><D5A3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β
if(!StrEmpty(sub)) {
p = (GList) malloc(sizeof(GLNode));
if(p == NULL) {
exit(OVERFLOW);
}
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD>˼<EFBFBD>Ǹý<C7B8><C3BD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
p->mark = 0;
p->tag = List;
q->Node.ptr.tp = p;
}
} while(!StrEmpty(sub));
q->Node.ptr.tp = NULL;
}
}
return OK;
}
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
void PrintGList(GList L) {
Print(L, Head);
printf("\n");
}
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʵ<EFBFBD>֣<EFBFBD>mark<72><6B>ͼ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD>
*/
static void Print(GList L, Mark mark) {
// LΪ<4C><CEAA>
if(L == NULL) {
if(mark == Head) {
printf("(");
}
printf(")");
// L<><4C>Ϊ<EFBFBD><CEAA>ʱ
} else {
// <20><><EFBFBD><EFBFBD>ԭ<EFBFBD>ӽ<EFBFBD><D3BD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
if(L->tag == Atom) {
printf("%c", L->Node.atom);
// <20><><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD>㣬Ҫ<E3A3AC>Ա<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>β<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>
} else {
if(mark == Head) {
printf("(");
} else {
printf(",");
}
Print(L->Node.ptr.hp, Head);
Print(L->Node.ptr.tp, Tail);
}
}
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ǿմ<C7BF>str<74>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>hsubΪ<62><CEAA>һ<EFBFBD><D2BB>','֮ǰ<D6AE><C7B0><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>strΪ<72><CEAA>һ<EFBFBD><D2BB>','֮<><D6AE><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>str<74><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޿հ׷<D5B0><D7B7>ţ<EFBFBD><C5A3><EFBFBD>str<74><72><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>strҲ<72>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
*/
static void sever(SString hstr, SString str) {
int i, k, n;
SString ch;
n = StrLength(str);
i = 0; // <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>α<EFBFBD>
k = 0; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
do {
++i;
// <20><>ȡstr<74><72>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD>
SubString(ch, str, i, 1);
if(ch[1] == '(') {
++k;
}
if(ch[1] == ')') {
--k;
}
} while(i < n && (ch[1] != ',' || k != 0));
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if(i < n) {
SubString(hstr, str, 1, i - 1);
SubString(str, str, i + 1, n - i);
// ֻ<><D6BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
} else {
StrCopy(hstr, str);
ClearString(str);
}
}

97
Dev-C++/CourseBook/0803_GarbageCollection/GList-HT.h Normal file
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/*============================
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 5.5<EFBFBD><EFBFBD>5.6<EFBFBD><EFBFBD>5.7<EFBFBD><EFBFBD>5.8
=============================*/
#ifndef GLIST_HT_H
#define GLIST_HT_H
#include <stdio.h>
#include <stdlib.h> // <20>ṩ malloc<6F><63>realloc<6F><63>free<65><65>exit ԭ<><D4AD>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
#include "SString.h" //**<2A><>04 <20><>**//
/* ԭ<><D4AD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
typedef char AtomType;
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* Atom-0<><30>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>
* List-1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
typedef enum { Atom, List } ElemTag;
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD> */
typedef struct GLNode {
int mark; // Ϊ<><CEAA>8<EFBFBD>µ<EFBFBD>5<EFBFBD><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD><CFB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><CABC>Ϊ0
ElemTag tag; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD>
// ԭ<>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD>
union {
AtomType atom; // atom<6F><6D>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>AtomType<70><65><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>
struct {
struct GLNode* hp; // ָ<><D6B8><EFBFBD><EFBFBD>ͷ
struct GLNode* tp; // ָ<><D6B8><EFBFBD><EFBFBD>β
} ptr; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>
} Node;
} GLNode;
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
typedef GLNode* GList;
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* Head<61><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ͷ
* Tail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>β
*/
typedef enum { Head, Tail } Mark;
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><>ʼ<EFBFBD><CABC><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<CEAA><31>
*
*<2A><>ע<EFBFBD><D7A2>
* <20><>Ҫ<EFBFBD><D2AA>ÿһ<C3BF><D2BB>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD><C5BF><EFBFBD>
*/
Status InitGList(GList* L);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
Status CreateGList(GList* L, SString S);
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
void PrintGList(GList L);
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʵ<EFBFBD>֣<EFBFBD>mark<72><6B>ͼ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD>
*/
static void Print(GList L, Mark mark);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ǿմ<C7BF>str<74>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>hsubΪ<62><CEAA>һ<EFBFBD><D2BB>','֮ǰ<D6AE><C7B0><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>strΪ<72><CEAA>һ<EFBFBD><D2BB>','֮<><D6AE><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>str<74><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޿հ׷<D5B0><D7B7>ţ<EFBFBD><C5A3><EFBFBD>str<74><72><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>strҲ<72>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
*/
static void sever(SString hstr, SString str);
#endif

68
Dev-C++/CourseBook/0803_GarbageCollection/GarbageCollection-main.cpp Normal file
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#include <stdio.h>
#include "GarbageCollection.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void Traverse(GList L, void(Visit)(GList));
// <20><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
void PrintInfo(GList L);
int main(int argc, char* argv[]) {
GList G;
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
{
SString S;
char* s = "((),(e),(a,(b,c,d)))";
InitGList(&G);
StrAssign(S, s);
CreateGList(&G, S);
PrintGList(G);
printf("\n");
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MakeList \n");
{
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ı<EFBFBD>־״̬...\n");
Traverse(G, PrintInfo);
printf("\n");
MakeList(G);
printf("<EFBFBD><EFBFBD><EFBFBD>ʺ<EFBFBD><EFBFBD>ı<EFBFBD>־״̬...\n");
Traverse(G, PrintInfo);
printf("\n");
}
PressEnterToContinue(debug);
return 0;
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void Traverse(GList L, void(Visit)(GList)) {
if(L == NULL) {
return;
}
Visit(L);
if(L->tag == List) {
Traverse(L->Node.ptr.hp, Visit);
Traverse(L->Node.ptr.tp, Visit);
}
}
// <20><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
void PrintInfo(GList L) {
if(L->tag == Atom) {
printf("mark = %d ԭ<>ӽ<EFBFBD><D3BD>㣺%c\n", L->mark, L->Node.atom);
} else {
printf("mark = %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n", L->mark);
}
}

79
Dev-C++/CourseBook/0803_GarbageCollection/GarbageCollection.cpp Normal file
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/*==============
* <20><><EFBFBD>õ<EFBFBD>Ԫ<EFBFBD>ռ<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.3
===============*/
#include "GarbageCollection.h"
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>ʹ<EFBFBD><CAB9>ջ)<29><>
*/
void MakeList(GList G) {
GList t, p, q;
Status finished;
if(!G || G->mark != 0) {
return;
}
t = NULL; // tΪp<CEAA><70>ĸ<EFBFBD><C4B8>
p = G;
finished = FALSE;
while(!finished) {
while(p->mark == 0) {
p->mark = 1; // MakeHead(p)<29><>ϸ<EFBFBD><CFB8>
q = p->Node.ptr.hp; // qָ<71><D6B8>p<EFBFBD>ı<EFBFBD>ͷ
if(q != NULL && q->mark == 0) {
// <20><>ͷΪԭ<CEAA>ӽ<EFBFBD><D3BD><EFBFBD>
if(q->tag == Atom) {
q->mark = 1;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD>
} else {
p->Node.ptr.hp = t;
p->tag = Atom;
t = p;
p = q;
}
}
} // <20><><EFBFBD>ɶԱ<C9B6>ͷ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD>
q = p->Node.ptr.tp;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β
if(q != NULL && q->mark == 0) {
p->Node.ptr.tp = t;
t = p;
p = q;
// BackTrack(finished)<29><>ϸ<EFBFBD><CFB8>
} else {
// <20><><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD>ӱ<EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD>
while(t && t->tag == List) {
q = t;
t = q->Node.ptr.tp;
q->Node.ptr.tp = p;
p = q;
}
// <20><><EFBFBD><EFBFBD>
if(t == NULL) {
finished = TRUE;
// <20>ӱ<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>
} else {
q = t;
t = q->Node.ptr.hp;
q->Node.ptr.hp = p;
p = q;
p->tag = List;
}// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β
}
}
}

122
Dev-C++/CourseBook/0803_GarbageCollection/GarbageCollection.dev Normal file
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@@ -0,0 +1,122 @@
[Project]
FileName=GarbageCollection.dev
Name=GarbageCollection
Type=1
Ver=2
ObjFiles=
Includes=
Libs=
PrivateResource=
ResourceIncludes=
MakeIncludes=
Compiler=
CppCompiler=
Linker=
IsCpp=0
Icon=
ExeOutput=
ObjectOutput=
LogOutput=
LogOutputEnabled=0
OverrideOutput=0
OverrideOutputName=
HostApplication=
UseCustomMakefile=0
CustomMakefile=
CommandLine=
Folders=
IncludeVersionInfo=0
SupportXPThemes=0
CompilerSet=1
CompilerSettings=0000000000000000001000000
UnitCount=7
[VersionInfo]
Major=1
Minor=0
Release=0
Build=0
LanguageID=1033
CharsetID=1252
CompanyName=
FileVersion=
FileDescription=Developed using the Dev-C++ IDE
InternalName=
LegalCopyright=
LegalTrademarks=
OriginalFilename=
ProductName=
ProductVersion=
AutoIncBuildNr=0
SyncProduct=1
[Unit1]
FileName=GarbageCollection.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit2]
FileName=GarbageCollection.h
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit3]
FileName=GarbageCollection-main.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit4]
FileName=GList-HT.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit5]
FileName=GList-HT.h
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit6]
FileName=SString.cpp
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=
[Unit7]
FileName=SString.h
CompileCpp=0
Folder=
Compile=1
Link=1
Priority=1000
OverrideBuildCmd=0
BuildCmd=

22
Dev-C++/CourseBook/0803_GarbageCollection/GarbageCollection.h Normal file
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@@ -0,0 +1,22 @@
/*==============
* <20><><EFBFBD>õ<EFBFBD>Ԫ<EFBFBD>ռ<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.3
===============*/
#ifndef GARBAGECOLLECTION_H
#define GARBAGECOLLECTION_H
#include <stdio.h>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
#include "GList-HT.h" //**<2A><>05 <20><><EFBFBD><EFBFBD><EFBFBD>͹<EFBFBD><CDB9><EFBFBD><EFBFBD><EFBFBD>**//
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>ʹ<EFBFBD><CAB9>ջ)<29><>
*/
void MakeList(GList G);
#endif

168
Dev-C++/CourseBook/0803_GarbageCollection/SString.cpp Normal file
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/*=============================
* <20><><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>˳<EFBFBD><CBB3><EFBFBD>洢<EFBFBD><E6B4A2>ʾ<EFBFBD><CABE>˳<EFBFBD>򴮣<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 4.1<EFBFBD><EFBFBD>4.2<EFBFBD><EFBFBD>4.3<EFBFBD><EFBFBD>4.5
==============================*/
#include "SString.h" //**<2A><>04 <20><>**//
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ֵΪchars<72>Ĵ<EFBFBD>T<EFBFBD><54>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
Status StrAssign(SString T, const char* chars) {
int i, len;
len = (int) strlen(chars);
// chars<72><73><EFBFBD><EFBFBD>
if(len > MAXSTRLEN) {
return ERROR;
}
T[0] = len;
for(i = 1; i <= len; i++) {
T[i] = chars[i - 1];
}
return OK;
}
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>S<EFBFBD><53><EFBFBD>ա<EFBFBD>
*/
Status ClearString(SString S) {
// ֻ<><D6BB>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA>Ϳ<EFBFBD><CDBF><EFBFBD>
S[0] = 0;
return OK;
}
/*
* <20>п<EFBFBD>
*
* <20>жϴ<D0B6>S<EFBFBD><53><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ݡ<EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>
* TRUE : <20><>SΪ<53><CEAA>
* FALSE: <20><>S<EFBFBD><53>Ϊ<EFBFBD><CEAA>
*/
Status StrEmpty(SString S) {
return S[0] == 0 ? TRUE : FALSE;
}
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ش<EFBFBD>S<EFBFBD><53>Ԫ<EFBFBD>صĸ<D8B5><C4B8><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
int StrLength(SString S) {
return S[0];
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨4.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>Ӵ<EFBFBD>
*
* <20><>Sub<75><62><EFBFBD><EFBFBD>S[pos, pos+len-1]<5D><>
* <20><><EFBFBD><EFBFBD>ֵָʾ<D6B8>Ƿ<EFBFBD><C7B7><EFBFBD>ȡ<EFBFBD>ɹ<EFBFBD><C9B9><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
Status SubString(SString Sub, SString S, int pos, int len) {
int i;
if(pos < 1 || pos > S[0] || len < 0 || pos + len - 1 > S[0]) {
return ERROR;
}
// <20><><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA>
for(i = 1; i <= len; i++) {
Sub[i] = S[pos + i - 1];
}
// ȷ<><C8B7><EFBFBD>³<EFBFBD><C2B3><EFBFBD>
Sub[0] = len;
return OK;
}
/*
* <20>Ƚ<EFBFBD>
*
* <20>Ƚϴ<C8BD>S<EFBFBD>ʹ<EFBFBD>T<EFBFBD><54><EFBFBD><EFBFBD><EFBFBD>رȽϽ<C8BD><CFBD><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
int StrCompare(SString S, SString T) {
int i = 1;
while(i <= S[0] && i <= T[0]) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>ַ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD><EFBFBD>С
if(S[i] != T[i]) {
return S[i] - T[i];
}
i++;
}
return S[0] - T[0];
}
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>S<EFBFBD><53><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>T<EFBFBD><54>
*/
Status StrCopy(SString T, SString S) {
int i;
// <20><>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣһ<CFA2><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
for(i = 0; i <= S[0]; i++) {
T[i] = S[i];
}
return OK;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD>еĿհף<D5B0><D7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD>ӡ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD><D5B8><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
Status ClearBlank(SString S) {
int i, j;
// <20><><EFBFBD><EFBFBD><EFBFBD>ǿմ<C7BF>
if(S[0] == 0) {
return ERROR;
}
for(i = 1, j = 0; i <= S[0]; i++) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>հף<D5B0><D7A3><EFBFBD><EFBFBD>Թ<EFBFBD>
if(S[i] == ' ' || !isprint(S[i])) {
continue;
}
j++;
S[j] = S[i];
}
S[0] = j;
return OK;
}

111
Dev-C++/CourseBook/0803_GarbageCollection/SString.h Normal file
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/*=============================
* <20><><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>˳<EFBFBD><CBB3><EFBFBD>洢<EFBFBD><E6B4A2>ʾ<EFBFBD><CABE>˳<EFBFBD>򴮣<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 4.1<EFBFBD><EFBFBD>4.2<EFBFBD><EFBFBD>4.3<EFBFBD><EFBFBD>4.5
==============================*/
#ifndef SSTRING_H
#define SSTRING_H
#include <stdio.h>
#include <string.h> // <20>ṩ strlen ԭ<><D4AD>
#include <ctype.h> // <20>ṩ isprint ԭ<><D4AD>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
/* <20>궨<EFBFBD><EAB6A8> */
#define MAXSTRLEN 255 // ˳<>򴮵<EFBFBD><F2B4AEB5><EFBFBD><EFBFBD>󴮳<EFBFBD>
/*
* <20><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>
*
* ע<><D7A2><EFBFBD><EFBFBD>ЧԪ<D0A7>ش<EFBFBD>SString<6E><67>1<EFBFBD>ŵ<EFBFBD>Ԫ<EFBFBD><D4AA>ʼ<EFBFBD>洢
* SString<6E><67>0<EFBFBD>ŵ<EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD>䳤<EFBFBD><E4B3A4>
*/
typedef unsigned char SString[MAXSTRLEN + 1]; // 0<>ŵ<EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD>Ŵ<EFBFBD><C5B4>ij<EFBFBD><C4B3><EFBFBD>
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ʾ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><>ѭ<EFBFBD>̲ĵ<CCB2><C4B5><EFBFBD>дϰ<D0B4>ߣ<EFBFBD>posָʾ<D6B8>ַ<EFBFBD><D6B7><EFBFBD>λ<EFBFBD><CEBB>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>1<EFBFBD><31>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
*/
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ֵΪchars<72>Ĵ<EFBFBD>T<EFBFBD><54>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
Status StrAssign(SString T, const char* chars);
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>S<EFBFBD><53><EFBFBD>ա<EFBFBD>
*/
Status ClearString(SString S);
/*
* <20>п<EFBFBD>
*
* <20>жϴ<D0B6>S<EFBFBD><53><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ݡ<EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>
* TRUE : <20><>SΪ<53><CEAA>
* FALSE: <20><>S<EFBFBD><53>Ϊ<EFBFBD><CEAA>
*/
Status StrEmpty(SString S);
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ش<EFBFBD>S<EFBFBD><53>Ԫ<EFBFBD>صĸ<D8B5><C4B8><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
int StrLength(SString S);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨4.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>Ӵ<EFBFBD>
*
* <20><>Sub<75><62><EFBFBD><EFBFBD>S[pos, pos+len-1]<5D><>
* <20><><EFBFBD><EFBFBD>ֵָʾ<D6B8>Ƿ<EFBFBD><C7B7><EFBFBD>ȡ<EFBFBD>ɹ<EFBFBD><C9B9><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
Status SubString(SString Sub, SString S, int pos, int len);
/*
* <20>Ƚ<EFBFBD>
*
* <20>Ƚϴ<C8BD>S<EFBFBD>ʹ<EFBFBD>T<EFBFBD><54><EFBFBD><EFBFBD><EFBFBD>رȽϽ<C8BD><CFBD><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD>
*/
int StrCompare(SString S, SString T);
/*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>S<EFBFBD><53><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>T<EFBFBD><54>
*/
Status StrCopy(SString T, SString S);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD>еĿհף<D5B0><D7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD>ӡ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD><D5B8><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
Status ClearBlank(SString S);
#endif

76
VisualC++/CourseBook/0801_BoundaryTagMethod/0801_BoundaryTagMethod.vcxproj Normal file
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@@ -0,0 +1,76 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{D71FCDD5-A659-4ABD-9BBD-D534E0500789}</ProjectGuid>
<RootNamespace>My0801_BoundaryTagMethod</RootNamespace>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<IncludePath>$(SolutionDir)\..\Status;$(IncludePath)</IncludePath>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>$(SolutionDir)\..\Status\Status.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Console</SubSystem>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
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VisualC++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod-main.c Normal file
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#include <stdio.h>
#include "BoundaryTagMethod.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
int main(int argc, char* argv[]) {
Space pav;
Space p[12]; // <20><>¼<EFBFBD><C2BC><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ָ<EFBFBD><D6B8>
int s[12] = {10, 20, 30, 50, 5, 15, 10, 5, 15, 15, 2, 20}; // <20><><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>С
int i = 0;
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InitSpace \n");
{
int max = 200; // <20><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>Ϊ20<32>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>Ǵ<EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>
printf("<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD>ǰ<EFBFBD>ڴ沼<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>\n", max);
pav = InitSpace(max);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AllocBoundTag \n");
{
for(i = 0; i < 12; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %2d> <20><><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>󣬵<EFBFBD>ǰ<EFBFBD>ڴ沼<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>\n", i + 1, s[i]);
p[i] = AllocBoundTag(&pav, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FreeBoundTag \n");
{
// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
int a[10] = {7, 3, 10, 6, 8, 5, 11, 1, 0, 4};
for(i = 0; i < 10; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD> p%d ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>...\n", a[i] + 1);
FreeBoundTag(&pav, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

330
VisualC++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.c Normal file
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/*==============
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.1
===============*/
#include "BoundaryTagMethod.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
/*
* ȫ<>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զָ<D4B6><D6B8><EFBFBD><EFBFBD>ʼ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>
* <20>ñ<EFBFBD><C3B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
* 1.<2E><><EFBFBD><EFBFBD>׷<EFBFBD><D7B7><EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3><EFBFBD><EFBFBD>鿴<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.ָʾ<D6B8>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>ͽ<EFBFBD>β
*/
static Space av;
// <20><>¼<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׷<EFBFBD><D7B7><EFBFBD>ڴ沼<DAB4><E6B2BC>
static int len;
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD>ܴ<EFBFBD>СΪn<CEAA><6E><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot<6F><74>
*/
Space InitSpace(int n) {
Space space, head, foot;
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
space = (Space) malloc(n * sizeof(WORD));
if(space == NULL) {
return NULL;
}
// <20><>ʼ<EFBFBD><CABC>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>Ϣ
head = space;
head->llink = space; // ǰ<><C7B0>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
head->rlink = space; // <20><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
head->size = n; // <20>ռ<EFBFBD><D5BC><EFBFBD>С<EFBFBD><D0A1><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot
head->tag = 0; // <20><><EFBFBD>ǿռ<C7BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
// <20><>ʼ<EFBFBD><CABC><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD>Ϣ
foot = FootLoc(head); // <20><>ʼ<EFBFBD><CABC><EFBFBD>ײ<EFBFBD>ָ<EFBFBD><D6B8>
foot->uplink = head; // <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
foot->tag = 0; // <20><><EFBFBD>ǿռ<C7BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD>¿ռ<C2BF><D5BC><EFBFBD><EFBFBD><EFBFBD>ʼλ<CABC>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD>
av = space;
len = n;
return space;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>pav<61><76><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn<CEAA>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
* Ϊ<><CEAA>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>龡<EFBFBD><E9BEA1><EFBFBD><EFBFBD><EFBFBD>ȷֲ<C8B7><D6B2><EFBFBD>ÿ<EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD>ѿռ<D1BF>ָ<EFBFBD><D6B8>pav<61><76>ǰ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><CEBC>̲ġ<CCB2>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.Ϊ<>˱<EFBFBD><CBB1><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>죬<EFBFBD><ECA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ݲ<EFBFBD>e<EFBFBD><65><EFBFBD><EFBFBD><EFBFBD>庬<EFBFBD><E5BAAC><EFBFBD>ο<EFBFBD><CEBF>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ɻ<EFBFBD><C9BB><EFBFBD><EFBFBD>Ŀռ䡣
* <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ10<31><30><EFBFBD>ֵĿռ䣬<D5BC><E4A3AC>ÿ<EFBFBD><C3BF><EFBFBD>ռ<EFBFBD><D5BC>ְ<EFBFBD><D6B0><EFBFBD>head<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ洢<D6B4>ռ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
* <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>СӦΪ12<31><32><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>"12"<22><><EFBFBD><EFBFBD>n<EFBFBD>ĺ<EFBFBD><C4BA>塣
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD>ᵽ"head<61><64>foot<6F>ڷ<EFBFBD><DAB7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>α<EFBFBD><CEB1><EFBFBD><EFBFBD>д<EFBFBD>ķ<EFBFBD><C4B7>㡣ʵ<E3A1A3><CAB5>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Dz<EFBFBD><C7B2>ܺ<EFBFBD><DCBA>Եġ<D4B5>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ԭʼ<D4AD><CABC><EFBFBD><EFBFBD><EFBFBD>Ŀռ䣬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>к<EFBFBD><D0BA>Կռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>̲<EFBFBD>α<EFBFBD><CEB1>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD>ν<EFBFBD><CEBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
Space AllocBoundTag(Space* pav, int n) {
Space p, f;
/*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>жϣ<D0B6><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>3<EFBFBD><33><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ء<EFBFBD>
* <20><>Ϊhead<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>2<EFBFBD><32><EFBFBD>ֿռ䣬<D5BC>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵĻ<D6B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>Ϊ3<CEAA><33><EFBFBD>֡<EFBFBD>
*/
if(n < 3) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD>3\n");
return NULL;
}
// <20><><EFBFBD>Ҳ<EFBFBD>С<EFBFBD><D0A1>n<EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
for(p = *pav; p && p->size < n && p->rlink != *pav; p = p->rlink) {
}
// <20>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD>ؿ<EFBFBD>ָ<EFBFBD><D6B8>
if(!p || p->size < n) {
return NULL;
}
/* <20><><EFBFBD>ˣ<EFBFBD>pָ<70><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD> */
// <20><>fָ<66><D6B8><EFBFBD>ÿ<EFBFBD><C3BF>п<EFBFBD><D0BF>ĵײ<C4B5>
f = FootLoc(p);
// pavָ<76><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA>̽<EFBFBD><CCBD>㣬<EFBFBD><E3A3AC>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>
*pav = p->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><CBB6>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><=e<><65>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD>
if(p->size - n <= e) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>pavָ<76><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pav<61><76>p<EFBFBD><70><EFBFBD>ȣ<EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD>ʱֻ<CAB1><D6BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD>(ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˫ѭ<CBAB><D1AD><EFBFBD><EFBFBD>)
if(*pav == p) {
*pav = NULL; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣһ<CAA3><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ˣ<EFBFBD><CBA3><EFBFBD>ô<EFBFBD><C3B4>ռ<EFBFBD>ú󣬿<C3BA><F3A3ACBF><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ձ<EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>
} else {
(*pav)->llink = p->llink; // <20>޸<EFBFBD>pav<61><76>ǰ<EFBFBD><C7B0>
p->llink->rlink = *pav; // <20>޸<EFBFBD>pavǰ<76><C7B0><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̲<EFBFBD>û<EFBFBD>иı䣬<C4B1><E4A3AC><EFBFBD><EFBFBD>Ϊ<EFBFBD>˷<EFBFBD><CBB7>㽫<EFBFBD><E3BDAB><EFBFBD>Ļ<EFBFBD><C4BB>ղ<EFBFBD><D5B2><EFBFBD> */
}
// <20><><EFBFBD><EFBFBD>ռ<EFBFBD>ÿ<EFBFBD>Ϊռ<CEAA><D5BC>״̬
p->tag = f->tag = 1;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>ʵ<EFBFBD>ʷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", n, n + e, AvailableSpace(*pav));
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ܴ<EFBFBD><DCB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>иռ<EEA3AC>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>
} else {
f->tag = 1; // <20>޸ķ<DEB8><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD>ʾ<EFBFBD>䴦<EFBFBD><E4B4A6>ռ<EFBFBD><D5BC>״̬
p->size -= n; // <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
f = FootLoc(p); // <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µײ<C2B5>λ<EFBFBD><CEBB>
f->tag = 0; // <20><><EFBFBD><EFBFBD><EFBFBD>µײ<C2B5><D7B2><EFBFBD>־Ϊ<D6BE><CEAA><EFBFBD><EFBFBD>
f->uplink = p; // <20>µײ<C2B5><D7B2><EFBFBD>Ȼָ<C8BB><D6B8><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ͷ<EFBFBD><CDB7>
p = f + 1; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>λ<EFBFBD><CEBB>
p->tag = 1; // <20><><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>־Ϊռ<CEAA><D5BC>
p->size = n; // <20><><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20>޸ķ<DEB8><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28>̲<EFBFBD><CCB2><EFBFBD>ȱʧ<C8B1>˴˲<CBB4><CBB2><EFBFBD>)
(FootLoc(p))->uplink = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>벢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", n, AvailableSpace(*pav));
}
// <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
return p;
}
/*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>"<22>ͷſ<CDB7>"<22><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>pָ<70><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
*/
void FreeBoundTag(Space* pav, Space p) {
Space h, f, q;
int Ltag, Rtag;
if(p == NULL) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD>ڴ<EFBFBD>ָ<EFBFBD><EFBFBD>Ϊ<EFBFBD>ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
Ltag = p == av ? 1 : (p - 1)->tag; // <20><>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD>ر<EFBFBD>ע<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pλ<70><CEBB><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>á<EFBFBD>
Rtag = (p + p->size) == (av + len) ? 1 : (p + p->size)->tag; // <20><>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD>ر<EFBFBD>ע<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pλ<70><CEBB><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>á<EFBFBD>
/*
* 1.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>p<EFBFBD><70><EFBFBD>뵽pav<61><76>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD>(<28><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD>뵽֮<EBB5BD><D6AE>Ҳ<EFBFBD>ǿ<EFBFBD><C7BF>Ե<EFBFBD>)
*/
if(Ltag == 1 && Rtag == 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>...\n", p->size);
f = FootLoc(p);
f->uplink = p;
f->tag = 0;
p->tag = 0;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ʱ<EFBFBD><CAB1>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>p<EFBFBD><70>Ϊ<EFBFBD>µĶ<C2B5><C4B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
if((*pav) == NULL) {
*pav = p->llink = p->rlink = p;
// <20><><EFBFBD>򣬽<EFBFBD><F2A3ACBD><EFBFBD>p<EFBFBD><70><EFBFBD>뵽pav֮ǰ
} else {
q = (*pav)->llink;
p->rlink = *pav;
p->llink = q;
q->rlink = (*pav)->llink = p;
// <20><><EFBFBD><EFBFBD><EFBFBD>ͷŵĽ<C5B5><C4BD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>´η<C2B4><CEB7><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Ȳ<EFBFBD><C8B2>ҵĽ<D2B5><C4BD><EFBFBD>
*pav = p;
}
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 2.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷſ<CDB7>
*/
if(Ltag == 0 && Rtag == 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ<EFBFBD>...\n", p->size);
h = (p - 1)->uplink; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
h->size += p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
f = FootLoc(p); // <20><><EFBFBD>ͷſ<CDB7><C5BF>ĵײ<C4B5><D7B2><EFBFBD>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
f->uplink = h;
f->tag = 0;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 3.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ飬<C3BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
if(Ltag == 1 && Rtag == 0) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊռ<CEAA>ÿ飬<C3BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>...\n", p->size);
h = p + p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
f = FootLoc(h); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
f->uplink = p; // <20>ͷſ<CDB7><C5BF><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
p->tag = 0;
p->size += h->size;
// <20>ͷſ<CDB7><C5BF><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
p->llink = h->llink;
p->rlink = h->rlink;
h->llink->rlink = p;
h->rlink->llink = p;
// pavָ<76><D6B8><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
*pav = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
/*
* 4.<2E>ͷſ<CDB7><C5BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
*
* <20><>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷſ顢<C5BF><E9A1A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
if(Ltag == 0 && Rtag == 0) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>\"<EFBFBD>ͷſ<EFBFBD>\"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>...\n", p->size);
h = (p - 1)->uplink; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>ͷ<EFBFBD><CDB7>
q = p + p->size; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>
f = FootLoc(q); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵײ<C4B5><D7B2><EFBFBD><EFBFBD>⽫<EFBFBD><E2BDAB>Ϊ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF>ĵײ<C4B5>
h->size += p->size + q->size; // <20>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD>С
f->uplink = h; // <20>¿<EFBFBD><C2BF>ײ<EFBFBD><D7B2><EFBFBD>ϢҲҪ<D2B2><D2AA><EFBFBD><EFBFBD>
// <20>Ƴ<EFBFBD><C6B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
q->rlink->llink = q->llink;
q->llink->rlink = q->rlink;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ %d ...\n", AvailableSpace(*pav));
return;
}
}
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout() {
Space p;
int count;
int i;
p = av;
count = av->size;
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("<EFBFBD><EFBFBD>");
} else {
printf("<EFBFBD><EFBFBD>");
}
if(i == count && count < len) {
p = p + p->size;
count += p->size;
printf("|");
} else {
printf(" ");
}
// ÿ<><C3BF>20<32><30><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
if(i % 20 == 0) {
printf("\n");
}
}
if(len % 20 != 0) {
printf("\n");
}
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>пռ<D0BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE>ӡ<EFBFBD><D3A1>
*/
static int AvailableSpace(Space pav) {
Space p;
int count;
if(pav == NULL) {
return 0;
}
p = pav;
count = 0;
do {
count += p->size;
p = p->rlink;
} while(p != pav);
return count;
}

96
VisualC++/CourseBook/0801_BoundaryTagMethod/BoundaryTagMethod.h Normal file
View File

@@ -0,0 +1,96 @@
/*==============
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.1
===============*/
#ifndef BOUNDARYTAGMETHOD_H
#define BOUNDARYTAGMETHOD_H
#include <stdio.h>
#include <stdlib.h>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
/* <20>궨<EFBFBD><EAB6A8> */
#define e 5 // <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ݲ<EFBFBD>
#define FootLoc(p) p+(p->size)-1 // <20><>pָ<70>붨λ<EBB6A8><CEBB>p<EFBFBD><70>ָ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ĵײ<C4B5>
/*
* <20>ڴ<EFBFBD>"<22><>"<22><><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>
*
* <20><>ν"<22><>"<22><>ָ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڡ<D6BD>
* һ<><D2BB>"<22><>"<22>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ڶ<EFBFBD>"<22><>"<22>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><CEB6><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
typedef struct WORD {
/*
* ע<><D7A2>
* <20>̲<EFBFBD><CCB2>н<EFBFBD>llink<6E><6B>uplink<6E><6B>װ<EFBFBD><D7B0><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>˸о<CBB8><D0BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0>Щ<EFBFBD><D0A9><EFBFBD>ߡ<EFBFBD>
* һ<><D2BB><EFBFBD>棬head<61><64>foot<6F>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵֻ<CAB5><D6BB>tag<61><67><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC>ôӦ<C3B4><D3A6><EFBFBD><EFBFBD>size<7A><65>rlinkҲ<6B><D2B2>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><>һ<EFBFBD><D2BB><EFBFBD>棬<EFBFBD><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0>ʡ<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ޣ<EFBFBD><DEA3><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>Ӱ<EFBFBD><D3B0><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD>Ŀɶ<C4BF><C9B6>ԡ<EFBFBD>
* <20><><EFBFBD><EFBFBD>ֻ<EFBFBD>ǽ<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ϵͳ<CFB5><CDB3><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD>Կռ俼<D5BC><E4BFBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>ԭ<EFBFBD><D4AD>չʾΪ<CABE><CEAA>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><><EFBFBD>⣬<EFBFBD>̲<EFBFBD><CCB2>е<EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>û<EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>ġ<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD>˽̲<CBBD><CCB2>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>
* <20><><EFBFBD><EFBFBD><EFBFBD>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բο<D4B2>CFree<65><65>֧<EFBFBD>Ĵ<EFBFBD><C4B4>롣
*/
int tag; // <20><><EFBFBD><EFBFBD>־<EFBFBD><D6BE>0<EFBFBD><30><EFBFBD>У<EFBFBD>1ռ<31>ã<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
struct WORD* llink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
struct WORD* rlink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><CCBD><EFBFBD>
int size; // ͷ<><CDB7><EFBFBD>򣬿<EFBFBD><F2A3ACBF><EFBFBD>С
struct WORD* uplink; // <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>򱾽<EFBFBD><F2B1BEBD><EFBFBD>ͷ<EFBFBD><CDB7>
} WORD;
typedef WORD* Space; // Space<63><65>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪn<CEAA><6E><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>foot<6F><74>
*/
Space InitSpace(int n);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>pav<61><76><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn<CEAA>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
* Ϊ<><CEAA>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>龡<EFBFBD><E9BEA1><EFBFBD><EFBFBD><EFBFBD>ȷֲ<C8B7><D6B2><EFBFBD>ÿ<EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD>ѿռ<D1BF>ָ<EFBFBD><D6B8>pav<61><76>ǰ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><CEBC>̲ġ<CCB2>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.Ϊ<>˱<EFBFBD><CBB1><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>죬<EFBFBD><ECA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ݲ<EFBFBD>e<EFBFBD><65><EFBFBD><EFBFBD><EFBFBD>庬<EFBFBD><E5BAAC><EFBFBD>ο<EFBFBD><CEBF>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ɻ<EFBFBD><C9BB><EFBFBD><EFBFBD>Ŀռ䡣
* <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ10<31><30><EFBFBD>ֵĿռ䣬<D5BC><E4A3AC>ÿ<EFBFBD><C3BF><EFBFBD>ռ<EFBFBD><D5BC>ְ<EFBFBD><D6B0><EFBFBD>head<61><64>foot<6F><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ洢<D6B4>ռ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
* <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>СӦΪ12<31><32><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>"12"<22><><EFBFBD><EFBFBD>n<EFBFBD>ĺ<EFBFBD><C4BA>塣
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD>ᵽ"head<61><64>foot<6F>ڷ<EFBFBD><DAB7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>α<EFBFBD><CEB1><EFBFBD><EFBFBD>д<EFBFBD>ķ<EFBFBD><C4B7>㡣ʵ<E3A1A3><CAB5>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Dz<EFBFBD><C7B2>ܺ<EFBFBD><DCBA>Եġ<D4B5>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ԭʼ<D4AD><CABC><EFBFBD><EFBFBD><EFBFBD>Ŀռ䣬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>к<EFBFBD><D0BA>Կռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>̲<EFBFBD>α<EFBFBD><CEB1>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD>ν<EFBFBD><CEBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
Space AllocBoundTag(Space* pav, int n);
/*
* <20>߽<EFBFBD><DFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>
*/
void FreeBoundTag(Space* pav, Space p);
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout();
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>пռ<D0BF><D5BC><EFBFBD><EFBFBD><EFBFBD>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE>ӡ<EFBFBD><D3A1>
*/
static int AvailableSpace(Space pav);
#endif

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VisualC++/CourseBook/0802_BuddySystem/0802_BuddySystem.vcxproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Platform>Win32</Platform>
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</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{6485E7FA-6038-4C6F-A91F-3B1D5E8B532D}</ProjectGuid>
<RootNamespace>My0802_BuddySystem</RootNamespace>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
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<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<IncludePath>$(SolutionDir)\..\Status;$(IncludePath)</IncludePath>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
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<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>$(SolutionDir)\..\Status\Status.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<ClCompile Include="BuddySystem-main.c" />
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44
VisualC++/CourseBook/0802_BuddySystem/BuddySystem-main.c Normal file
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#include <stdio.h>
#include "BuddySystem.h" //**<2A><>08 <20><>̬<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>**//
int main(int argc, char* argv[]) {
FreeList avail;
WORD* p[8]; // <20><>¼<EFBFBD><C2BC><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ָ<EFBFBD><D6B8>
int s[8] = {4, 5, 6, 7, 1, 5, 3, 9}; // <20><><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>С
int i;
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InitSpace \n");
{
printf("<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>...\n");
InitSpace(avail);
PrintMemoryLayout();
printf("\n");
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AllocBuddy \n");
{
for(i = 0; i < 8; i++) {
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>СΪ %d <20><><EFBFBD>ֵ<EFBFBD><D6B5>ڴ<EFBFBD><DAB4><EFBFBD>...\n", s[i]);
p[i] = AllocBuddy(avail, s[i]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FreeBuddy \n");
{
// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
int a[8] = {2, 0, 5, 7, 1, 4, 3, 6};
for(i = 0; i < 8; i++) {
FreeBuddy(avail, p[a[i]]);
PrintMemoryLayout();
printf("\n");
}
}
PressEnterToContinue(debug);
return 0;
}

283
VisualC++/CourseBook/0802_BuddySystem/BuddySystem.c Normal file
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/*==============
* <20><><EFBFBD><EFBFBD>ϵͳ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.2
===============*/
#include "BuddySystem.h"
// <20><>¼<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD>õ<EFBFBD>
WORD* start;
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪ2^M<><4D><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>
*/
void InitSpace(FreeList avail) {
int k;
WORD* r;
// <20><><EFBFBD><EFBFBD>M+1<><31>Ԫ<EFBFBD><D4AA>
for(k = 0; k <= M; k++) {
avail[k].nodesize = (int) pow(2, k);
avail[k].first = NULL;
}
r = (WORD*) malloc((int) pow(2, M) * sizeof(WORD));
if(r == NULL) {
exit(OVERFLOW);
}
// <20><><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>Ϣ
r->llink = r->rlink = r;
r->tag = 0;
r->kval = M;
avail[M].first = r;
start = r;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>avail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn(ԭʼֵ)<29>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭʼ<D4AD>ռ䡣
* ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵ<EFBFBD>head<61><64>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>(n+1)<29><><EFBFBD>֡<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>㷨8.1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>෴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD>⡣
*/
WORD* AllocBuddy(FreeList avail, int n) {
int k, i;
WORD* pa, * pre, * suc, * pi;
/*
* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>жϣ<D0B6><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>1<EFBFBD><31><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ء<EFBFBD>
*/
if(n < 1) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>\"<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD>1\n");
return NULL;
}
// <20><><EFBFBD>Ҳ<EFBFBD>С<EFBFBD><D0A1>n<EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
for(k = 0; k <= M && (avail[k].nodesize < n + 1 || !avail[k].first); k++) {
}
// <20>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD>ؿ<EFBFBD>ָ<EFBFBD><D6B8>
if(k > M) {
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>㹻<EFBFBD>Ŀ<EFBFBD><EFBFBD>п<EFBFBD>\n");
return NULL;
}
pa = avail[k].first; // ָ<><D6B8><EFBFBD>ɷ<EFBFBD><C9B7><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1>ĵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
pre = pa->llink; // <20>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD>
suc = pa->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1><EFBFBD>Ϊ<EFBFBD><CEAA>
if(pa == suc) {
avail[k].first = NULL;
// <20><><EFBFBD>򣬴<EFBFBD><F2A3ACB4><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>ժ<EFBFBD><D5AA>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD>ͷָ<CDB7><D6B8>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>
} else {
pre->rlink = suc;
suc->llink = pre;
avail[k].first = suc;
}
/*
* <20><>k-1<><31><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>FreeList<73><74><EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>Ŀ<EFBFBD><C4BF>п顣
* ʣ<><CAA3><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF>Ƕ<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD>ÿռ<C3BF><D5BC>IJ<EFBFBD><C4B2>֡<EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>2^m-2^n = 2^n+2^(n+1)+...+2^(m-1)
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>Ϊ2^16<31><36><EFBFBD><EFBFBD>ʱ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD>1500<30><30><EFBFBD>֣<EFBFBD><D6A3><EFBFBD>ô<EFBFBD><C3B4>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>2^11<31>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>2^16-2^11 = 2^11+2^12+2^13+2^14+2^15<31><35>
* <20><>Щʣ<D0A9><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>Ϊ5<CEAA><35><EFBFBD><EFBFBD><EFBFBD>п飬<D0BF>ֱ<EFBFBD><D6B1>洢<EFBFBD><E6B4A2>15<31><35>14<31><34>13<31><33>12<31><32>11<31><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
for(i = 1; k - i >= 0 && avail[k - i].nodesize >= n + 1; i++) {
pi = pa + (int) pow(2, k - i); // ÿ<>ν<EFBFBD>piָ<69><D6B8>ʣ<EFBFBD><CAA3><EFBFBD>ռ<EFBFBD><D5BC>ĺ<EFBFBD>һ<EFBFBD><D2BB>
pi->rlink = pi->llink = pi; // <20><>ʼ<EFBFBD><CABC>pi<70><69>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD>
pi->tag = 0; // <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>п<EFBFBD>
pi->kval = k - i; // <20><><EFBFBD>øÿ<C3B8><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ϊ2^(k-i)
avail[k - i].first = pi;
/*
* ע<><D7A2>
* <20><><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>piֱ<69><D6B1><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD>avail<69>У<EFBFBD><D0A3><EFBFBD>û<EFBFBD>п<EFBFBD><D0BF><EFBFBD>ͬλ<CDAC>ô<EFBFBD><C3B4>᲻<EFBFBD><E1B2BB><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><C4BF>п顣
* <20><><EFBFBD>ﲻ<EFBFBD><EFB2BB>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬλ<CDAC>ô<EFBFBD><C3B4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><C4BF>п飬
* <20><>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ֽ<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD>仰˵<E4BBB0><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ֻҪ<D6BB><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>Ŀ<EFBFBD><C4BF>λ<EFBFBD>ô<EFBFBD><C3B4>Ѿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ˣ<EFBFBD>û<EFBFBD><C3BB><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ʵĿ<CAB5><C4BF>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ž<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>α괦Ѱ<EAB4A6>ҿ<EFBFBD><D2BF>п顣
*/
}
// <20><><EFBFBD><EFBFBD>ʣ<EFBFBD>µ<EFBFBD><C2B5>ǰ<EEBFBF>Ŀռ<C4BF><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>Ŀռ<C4BF>(<28><><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pa<70><61>ǰ<EFBFBD><C7B0><EFBFBD>ͺ<EFBFBD><CDBA>̣<EFBFBD><CCA3><EFBFBD>Ϊû<CEAA><C3BB>Ҫ)
pa->tag = 1;
pa->kval = k - (--i);
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20><><EFBFBD>֣<EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD> %d <20><><EFBFBD>֣<EFBFBD>ʵ<EFBFBD>ʷ<EFBFBD><CAB7><EFBFBD> %d <20><><EFBFBD><EFBFBD>\n", n, n + 1, (int) pow(2, pa->kval));
return pa;
}
/*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>֤p<D6A4><70>ȡֵ<C8A1><D6B5><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD>Ӧ<EFBFBD><D3A6>ȷ<EFBFBD><C8B7>p<EFBFBD>ںϹ<DABA><CFB9>ķ<EFBFBD>Χ
*/
void FreeBuddy(FreeList avail, WORD* p) {
int k;
WORD* r;
WORD* buddy = Buddy(p);
if(p == NULL) {
return;
}
/*
* <20><><EFBFBD>ｫp<EFBDAB><70><EFBFBD><EFBFBD><EFBFBD>򵥵ز<F2B5A5B5><D8B2>뵽avail<69>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>p<EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>һ<EFBFBD>£<EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD>黹ûƴ<C3BB>Ϻ<EFBFBD>
* 3.pƴ<70>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD>
*/
if(buddy->tag == 1 || buddy->kval != p->kval || p->kval == M) {
for(k = 0; k <= M && k < p->kval; k++) {
// <20><><EFBFBD><EFBFBD>p<EFBFBD><70><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>
}
// <20>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ۣ<EFBFBD><DBA3><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>巨<EFBFBD><E5B7A8><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD>뵽Ŀ<EBB5BD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if(k <= M && k == p->kval) {
p->tag = 0;
if(avail[k].first == NULL) {
p->llink = p->rlink = p;
} else {
p->llink = avail[k].first->llink;
p->rlink = avail[k].first;
p->llink->rlink = p;
p->rlink->llink = p;
}
avail[k].first = p;
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճɹ<EFBFBD><EFBFBD><EFBFBD>[%d, (2^%d)]<5D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> %d <20>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n", (int) (p - start), k, k);
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF>еģ<D0B5><C4A3><EFBFBD>ʱӦ<CAB1><D3A6><EFBFBD><EFBFBD><EFBFBD>кϲ<D0BA><CFB2><EFBFBD><EFBFBD><EFBFBD>
} else {
for(k = 0; k <= M && k < p->kval; k++) {
// <20><><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵIJ<DAB5><C4B2><EFBFBD>
}
// <20>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>ۣ<EFBFBD><DBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD><D3BF>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ժ<EFBFBD><D5AA><EFBFBD><EFBFBD>
if(k <= M && k == p->kval) {
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>λ<EFBFBD><CEBB>
if(avail[k].first == buddy) {
buddy->rlink->llink = buddy->llink;
buddy->llink->rlink = buddy->rlink;
avail[k].first = buddy->rlink;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD>λ<EFBFBD><CEBB>
} else {
for(r = avail[k].first; r->rlink != buddy; r = r->rlink) {
// <20><><EFBFBD>һ<EFBFBD><D2BB>飬rָ<72><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>
}
r->rlink = buddy->rlink;
buddy->rlink->llink = r;
}
printf("<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>[%d, (2^%d)]<5D><>[%d, (2^%d)]<5D>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD>", (int) (p - start), k, (int) (buddy - start), k);
// <20>ϲ<EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD>Ҫȷ<D2AA><C8B7><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>鿿ǰ
if(p < buddy) {
p->tag = 0;
} else {
p = buddy;
}
p->kval = k + 1; // ָ<><D6B8><EFBFBD><EFBFBD>һ<EFBFBD>󣬼<EFBFBD><F3A3ACBC><EFBFBD><EFBFBD>ɺϲ<C9BA>
printf("[%d, (2^%d)]\n", (int) (p - start), k + 1);
// <20><><EFBFBD><EFBFBD><EFBFBD>µĿ<C2B5><C4BF>п<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ݹ飬<DDB9>鿴<EFBFBD>ÿ<EFBFBD><C3BF>п<EFBFBD><D0BF>Ƿ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ڿ<EFBFBD><DABF>л<EFBFBD><D0BB><EFBFBD>
FreeBuddy(avail, p);
}
}
}
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout() {
int i, count, total;
WORD* p;
printf("|");
p = start;
count = (int) pow(2, p->kval);
for(i = 1; i <= count; i++) {
if(p->tag == 0) {
printf("_");
} else {
printf("*");
}
// <20><><EFBFBD>뵽<EFBFBD><EBB5BD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
if(i == count && count < (int) pow(2, M)) {
p = start + count;
count += (int) pow(2, p->kval);
printf("|");
}
}
printf("|\n");
}
/*
* <20><><EFBFBD>ҿ<EFBFBD>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
*
* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>԰<EFBFBD><D4B0><EFBFBD><EFBFBD>Ѻ󣬻<D1BA><F3A3ACBB><EFBFBD><EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п黥Ϊ<E9BBA5><CEAA><EFBFBD>顣
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨Ϊ<E3B7A8><CEAA>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp<CEAA><70><EFBFBD><EFBFBD>СΪ2^k<><6B><EFBFBD>ڴ<EFBFBD><DAB4>飺
* 1.<2E><> p MOD 2^(k+1) == 0 ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp+2^k<><6B>
* 2.<2E><> p MOD 2^(k+1) == 2^k ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp-2^k<><6B>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8>
*/
static WORD* Buddy(WORD* p) {
long s, m, n;
if(p == NULL) {
return NULL;
}
// start<72><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ľ<EFBFBD><C4BE><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7>s<EFBFBD><73>p<EFBFBD>ڻ<EFBFBD><DABB><EFBFBD>ϵͳ<CFB5>еľ<D0B5><C4BE>Ե<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>0<EFBFBD><30>ʼ
s = p - start;
if(s < 0) {
return NULL;
}
m = (long) pow(2, p->kval);
n = (long) pow(2, p->kval + 1);
if(s % n == 0) {
return p + m;
}
if(s % n == m) {
return p - m;
}
return NULL;
}

89
VisualC++/CourseBook/0802_BuddySystem/BuddySystem.h Normal file
View File

@@ -0,0 +1,89 @@
/*==============
* <20><><EFBFBD><EFBFBD>ϵͳ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 8.2
===============*/
#ifndef BUDDYSYSTEM_H
#define BUDDYSYSTEM_H
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
/* <20>궨<EFBFBD><EAB6A8> */
#define M 6 // <20><><EFBFBD><EFBFBD><EFBFBD>ܿռ<DCBF><D5BC><EFBFBD>СΪ2^M<><4D><EFBFBD>֣<EFBFBD><D6A3>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD><EFBFBD>ΪM+1
/*
* <20>ڴ<EFBFBD>"<22><>"<22><><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>
*
* <20><>ν"<22><>"<22><>ָ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڡ<D6BD>
* һ<><D2BB>"<22><>"<22>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ڶ<EFBFBD>"<22><>"<22>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><CEB6><EFBFBD><EFBFBD>ġ<EFBFBD>
*/
typedef struct WORD {
struct WORD* llink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>ָ<EFBFBD><D6B8>
struct WORD* rlink; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>ָ<EFBFBD><D6B8>
int tag; // ͷ<><CDB7><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>־<EFBFBD><D6BE>0:<3A><><EFBFBD>У<EFBFBD>1:ռ<><D5BC>
int kval; // ָʾ<D6B8><CABE><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪKʱ<4B><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD>ÿ<EFBFBD><C3BF>Ĵ<EFBFBD>СΪ2^K
} WORD;
// <20><>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
typedef struct HeadNode {
int nodesize; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>п<EFBFBD><D0BF>Ĵ<EFBFBD>С
WORD* first; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ͷָ<CDB7><D6B8>
} FreeList[M + 1];
/*
* <20><>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪ2^M<><4D><EFBFBD>ֵ<EFBFBD><D6B5>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>صij<D8B5>ʼ<EFBFBD>ڴ<EFBFBD><DAB4>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>head<61><64>
*/
void InitSpace(FreeList avail);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨8.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20>ӿռ<D3BF>avail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ϊn(ԭʼֵ)<29>Ŀռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>Ŀռ<C4BF><D5BC><EFBFBD>ָ<EFBFBD>롣<EFBFBD><EBA1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3>򷵻<EFBFBD>NULL<4C><4C>
*
* ע<><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>ֵĿռ䣬ָ<E4A3AC><D6B8><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭʼ<D4AD>ռ䡣
* ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD>ֵ<EFBFBD>head<61><64>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>(n+1)<29><><EFBFBD>֡<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><6E><EFBFBD>㷨8.1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>෴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD>⡣
*/
WORD* AllocBuddy(FreeList avail, int n);
/*
* <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
*
* <20><>ָ<EFBFBD><D6B8>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>free()<29><>ֻ<EFBFBD>Ƕ<EFBFBD><C7B6>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷŲ<CDB7><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ָ<EFBFBD><D6B8>p<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD>)
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>֤p<D6A4><70>ȡֵ<C8A1><D6B5><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD>Ӧ<EFBFBD><D3A6>ȷ<EFBFBD><C8B7>p<EFBFBD>ںϹ<DABA><CFB9>ķ<EFBFBD>Χ
*/
void FreeBuddy(FreeList avail, WORD* p);
/*
* <20><>ӡ<EFBFBD>ڴ沼<DAB4>֣<EFBFBD><D6A3>鿴<EFBFBD><E9BFB4>ǰ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
*/
void PrintMemoryLayout();
/*
* <20><><EFBFBD>ҿ<EFBFBD>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
*
* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>԰<EFBFBD><D4B0><EFBFBD><EFBFBD>Ѻ󣬻<D1BA><F3A3ACBB><EFBFBD><EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п飬<D0BF><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>п黥Ϊ<E9BBA5><CEAA><EFBFBD>顣
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨Ϊ<E3B7A8><CEAA>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp<CEAA><70><EFBFBD><EFBFBD>СΪ2^k<><6B><EFBFBD>ڴ<EFBFBD><DAB4>飺
* 1.<2E><> p MOD 2^(k+1) == 0 ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp+2^k<><6B>
* 2.<2E><> p MOD 2^(k+1) == 2^k ,<2C><>p<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַΪp-2^k<><6B>
*
* ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8>
*/
static WORD* Buddy(WORD* p);
#endif

80
VisualC++/CourseBook/0803_GarbageCollection/0803_GarbageCollection.vcxproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{66EA62B4-2F77-4BE6-AA24-C713EB7771DD}</ProjectGuid>
<RootNamespace>My0803_GarbageCollection</RootNamespace>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<IncludePath>$(SolutionDir)\..\Status;$(IncludePath)</IncludePath>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>$(SolutionDir)\..\Status\Status.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Console</SubSystem>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="GarbageCollection-main.c" />
<ClCompile Include="GarbageCollection.c" />
<ClCompile Include="GList-HT.c" />
<ClCompile Include="SString.c" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="GarbageCollection.h" />
<ClInclude Include="GList-HT.h" />
<ClInclude Include="SString.h" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

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201
VisualC++/CourseBook/0803_GarbageCollection/GList-HT.c Normal file
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/*============================
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 5.5<EFBFBD><EFBFBD>5.6<EFBFBD><EFBFBD>5.7<EFBFBD><EFBFBD>5.8
=============================*/
#include "GList-HT.h" //**<2A><>05 <20><><EFBFBD><EFBFBD><EFBFBD>͹<EFBFBD><CDB9><EFBFBD><EFBFBD><EFBFBD>**//
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><>ʼ<EFBFBD><CABC><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<CEAA><31>
*
*<2A><>ע<EFBFBD><D7A2>
* <20><>Ҫ<EFBFBD><D2AA>ÿһ<C3BF><D2BB>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD><C5BF><EFBFBD>
*/
Status InitGList(GList* L) {
if(L == NULL) {
return ERROR;
}
*L = NULL;
return OK;
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
Status CreateGList(GList* L, SString S) {
SString emp; // <20><><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
SString hsub, sub;
GList p, q;
if(L == NULL) {
return ERROR;
}
// <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD>еĿհף<D5B0><D7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD>ӡ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD>
ClearBlank(S);
if(StrEmpty(S)) {
return ERROR;
}
StrAssign(emp, "()");
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>봮Ϊ()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* <20>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
* StrCompare<72>ķ<EFBFBD><C4B7><EFBFBD>ֵָʾ<D6B8><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָʾ<D6B8><CABE><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>ȡ<EFBFBD>
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>S<EFBFBD><53>()<29><><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>ֵӦ<D6B5><D3A6><EFBFBD><EFBFBD>0<EFBFBD><30>
*/
if(!StrCompare(S, emp)) {
*L = NULL;
} else {
*L = (GList) malloc(sizeof(GLNode));
if(*L == NULL) {
exit(OVERFLOW);
}
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD>˼<EFBFBD>Ǹý<C7B8><C3BD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
(*L)->mark = 0;
// <20><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
if(StrLength(S) == 1) {
(*L)->tag = Atom;
(*L)->Node.atom = S[1];
} else {
(*L)->tag = List;
p = *L;
// ȥ<><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
SubString(sub, S, 2, StrLength(S) - 2);
// <20>ظ<EFBFBD><D8B8><EFBFBD>n<EFBFBD><6E><EFBFBD>ӱ<EFBFBD>
do {
// <20><>sub<75>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>hsub<75><62><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>subҲ<62>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
sever(hsub, sub);
// <20>ݹ鴴<DDB9><E9B4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
CreateGList(&(p->Node.ptr.hp), hsub);
q = p;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2>Ϊ<EFBFBD>գ<EFBFBD><D5A3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β
if(!StrEmpty(sub)) {
p = (GList) malloc(sizeof(GLNode));
if(p == NULL) {
exit(OVERFLOW);
}
// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD>˼<EFBFBD>Ǹý<C7B8><C3BD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
p->mark = 0;
p->tag = List;
q->Node.ptr.tp = p;
}
} while(!StrEmpty(sub));
q->Node.ptr.tp = NULL;
}
}
return OK;
}
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
void PrintGList(GList L) {
Print(L, Head);
printf("\n");
}
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʵ<EFBFBD>֣<EFBFBD>mark<72><6B>ͼ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD>
*/
static void Print(GList L, Mark mark) {
// LΪ<4C><CEAA>
if(L == NULL) {
if(mark == Head) {
printf("(");
}
printf(")");
// L<><4C>Ϊ<EFBFBD><CEAA>ʱ
} else {
// <20><><EFBFBD><EFBFBD>ԭ<EFBFBD>ӽ<EFBFBD><D3BD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
if(L->tag == Atom) {
printf("%c", L->Node.atom);
// <20><><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD>㣬Ҫ<E3A3AC>Ա<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>β<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>
} else {
if(mark == Head) {
printf("(");
} else {
printf(",");
}
Print(L->Node.ptr.hp, Head);
Print(L->Node.ptr.tp, Tail);
}
}
}
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ǿմ<C7BF>str<74>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>hsubΪ<62><CEAA>һ<EFBFBD><D2BB>','֮ǰ<D6AE><C7B0><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>strΪ<72><CEAA>һ<EFBFBD><D2BB>','֮<><D6AE><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>str<74><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޿հ׷<D5B0><D7B7>ţ<EFBFBD><C5A3><EFBFBD>str<74><72><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>strҲ<72>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
*/
static void sever(SString hstr, SString str) {
int i, k, n;
SString ch;
n = StrLength(str);
i = 0; // <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>α<EFBFBD>
k = 0; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
do {
++i;
// <20><>ȡstr<74><72>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD>
SubString(ch, str, i, 1);
if(ch[1] == '(') {
++k;
}
if(ch[1] == ')') {
--k;
}
} while(i < n && (ch[1] != ',' || k != 0));
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if(i < n) {
SubString(hstr, str, 1, i - 1);
SubString(str, str, i + 1, n - i);
// ֻ<><D6BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
} else {
StrCopy(hstr, str);
ClearString(str);
}
}

96
VisualC++/CourseBook/0803_GarbageCollection/GList-HT.h Normal file
View File

@@ -0,0 +1,96 @@
/*============================
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ
*
* <20><><EFBFBD><EFBFBD><EFBFBD>㷨: 5.5<EFBFBD><EFBFBD>5.6<EFBFBD><EFBFBD>5.7<EFBFBD><EFBFBD>5.8
=============================*/
#ifndef GLIST_HT_H
#define GLIST_HT_H
#include <stdio.h>
#include <stdlib.h> // <20>ṩ malloc<6F><63>realloc<6F><63>free<65><65>exit ԭ<><D4AD>
#include "Status.h" //**<2A><>01 <20><><EFBFBD><EFBFBD>**//
#include "SString.h" //**<2A><>04 <20><>**//
/* ԭ<><D4AD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
typedef char AtomType;
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* Atom-0<><30>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>
* List-1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
typedef enum { Atom, List } ElemTag;
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷβ<CDB7><CEB2><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD> */
typedef struct GLNode {
int mark; // Ϊ<><CEAA>8<EFBFBD>µ<EFBFBD>5<EFBFBD><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD><CFB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><CABC>Ϊ0
ElemTag tag; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD>
// ԭ<>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD>
union {
AtomType atom; // atom<6F><6D>ԭ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>AtomType<70><65><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>
struct {
struct GLNode* hp; // ָ<><D6B8><EFBFBD><EFBFBD>ͷ
struct GLNode* tp; // ָ<><D6B8><EFBFBD><EFBFBD>β
} ptr; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>
} Node;
} GLNode;
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
typedef GLNode* GList;
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* Head<61><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ͷ
* Tail<69><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>β
*/
typedef enum { Head, Tail } Mark;
/*
* <20><>ʼ<EFBFBD><CABC>
*
* <20><>ʼ<EFBFBD><CABC><EFBFBD>յĹ<D5B5><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<CEAA><31>
*
*<2A><>ע<EFBFBD><D7A2>
* <20><>Ҫ<EFBFBD><D2AA>ÿһ<C3BF><D2BB>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD><C5BF><EFBFBD>
*/
Status InitGList(GList* L);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>S<EFBFBD><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
Status CreateGList(GList* L, SString S);
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>
*/
void PrintGList(GList L);
/*
* ͼ<>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ʵ<EFBFBD>֣<EFBFBD>mark<72><6B>ͼ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD>
*/
static void Print(GList L, Mark mark);
/*
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㷨5.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* <20><><EFBFBD>ǿմ<C7BF>str<74>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>hsubΪ<62><CEAA>һ<EFBFBD><D2BB>','֮ǰ<D6AE><C7B0><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>strΪ<72><CEAA>һ<EFBFBD><D2BB>','֮<><D6AE><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>
*
*<2A><>ע<EFBFBD><D7A2>
* 1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>str<74><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޿հ׷<D5B0><D7B7>ţ<EFBFBD><C5A3><EFBFBD>str<74><72><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD>
* 2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD>strҲ<72>ᷢ<EFBFBD><E1B7A2><EFBFBD>仯
*/
static void sever(SString hstr, SString str);
#endif

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