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Document string operations

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1992 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
2009-07-18 21:04:10 +00:00
parent eefb20545f
commit 5f7092fd27
1 changed files with 124 additions and 56 deletions
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Documentation/NuttxUserGuide.html
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@@ -6088,10 +6088,12 @@ interface of the same name.
<li><a href="#FileSystemOverview">2.11.1 NuttX File System Overview</a></li> <li><a href="#FileSystemOverview">2.11.1 NuttX File System Overview</a></li>
<li><a href="#driveroperations">2.11.2 Driver Operations</a></li> <li><a href="#driveroperations">2.11.2 Driver Operations</a></li>
<li><a href="#directoryoperations">2.11.3 Directory Operations</a></li> <li><a href="#directoryoperations">2.11.3 Directory Operations</a></li>
<li><a href="#standardio">2.11.4 Standard I/O</a></li> <li><a href="#dirunistdops">2.11.4 UNIX Standard Operations</a></li>
<li><a href="#PipesNFifos">2.11.5 Pipes and FIFOs</a></li> <li><a href="#standardio">2.11.5 Standard I/O</a></li>
<li><a href="#fatsupport">2.11.6 FAT File System Support</a></li> <li><a href="#stdstrings">2.11.6 Standard String Operations</a></li>
<li><a href="#mmapxip">2.11.7 <code>mmap()</code> and eXecute In Place (XIP)</a></li> <li><a href="#PipesNFifos">2.11.7 Pipes and FIFOs</a></li>
<li><a href="#fatsupport">2.11.8 FAT File System Support</a></li>
<li><a href="#mmapxip">2.11.9 <code>mmap()</code> and eXecute In Place (XIP)</a></li>
</ul> </ul>
<h3><a name="FileSystemOverview">2.11.1 NuttX File System Overview</a></h3> <h3><a name="FileSystemOverview">2.11.1 NuttX File System Overview</a></h3>
@@ -6310,66 +6312,132 @@ interface of the same name.
<h3><a name="directoryoperations">2.11.3 Directory Operations</a></h3> <h3><a name="directoryoperations">2.11.3 Directory Operations</a></h3>
<a name="dirdirentops"> <a name="dirdirentops">
<ul><pre> <ul><pre>
#include &lt;dirent.h&gt; #include &lt;dirent.h&gt;
int closedir(DIR *dirp);
FAR DIR *opendir(const char *path); int closedir(DIR *dirp);
FAR struct dirent *readdir(FAR DIR *dirp); FAR DIR *opendir(const char *path);
int readdir_r(FAR DIR *dirp, FAR struct dirent *entry, FAR struct dirent **result); FAR struct dirent *readdir(FAR DIR *dirp);
void rewinddir(FAR DIR *dirp); int readdir_r(FAR DIR *dirp, FAR struct dirent *entry, FAR struct dirent **result);
void seekdir(FAR DIR *dirp, int loc); void rewinddir(FAR DIR *dirp);
int telldir(FAR DIR *dirp); void seekdir(FAR DIR *dirp, int loc);
int telldir(FAR DIR *dirp);
</pre></ul> </pre></ul>
</a> </a>
<a name="dirunistdops"> <h3><a name="dirunistdops">2.11.4 UNIX Standard Operations</a></h3>
<ul><pre> <ul><pre>
#include &lt;unistd.h&gt; #include &lt;unistd.h&gt;
int chdir(FAR const char *path);
FAR char *getcwd(FAR char *buf, size_t size); pid_t getpid(void);
void _exit(int status) noreturn_function;
unsigned int sleep(unsigned int seconds);
void usleep(unsigned long usec);
int close(int fd);
int dup(int fd);
int dup2(int fd1, int fd2);
int fsync(int fd);
off_t lseek(int fd, off_t offset, int whence);
ssize_t read(int fd, FAR void *buf, size_t nbytes);
ssize_t write(int fd, FAR const void *buf, size_t nbytes);
int pipe(int filedes[2]);
int chdir(FAR const char *path);
FAR char *getcwd(FAR char *buf, size_t size);
int unlink(FAR const char *pathname);
int rmdir(FAR const char *pathname);
int getopt(int argc, FAR char *const argv[], FAR const char *optstring);
</pre></ul> </pre></ul>
</a> </a>
<h3><a name="standardio">2.11.4 Standard I/O</a></h3> <h3><a name="standardio">2.11.5 Standard I/O</a></h3>
<ul><pre> <ul><pre>
#include &lt;stdio.h&gt; #include &lt;stdio.h&gt;
int fclose(FILE *stream);
int fflush(FILE *stream);
int feof(FILE *stream); /* Prototyped but not implemented */
int ferror(FILE *stream); /* Prototyped but not implemented */
int fgetc(FILE *stream);
int fgetpos(FILE *stream, fpos_t *pos);
char *fgets(char *s, int n, FILE *stream);
FILE *fopen(const char *path, const char *type);
int fprintf(FILE *stream, const char *format, ...);
int fputc(int c, FILE *stream);
int fputs(const char *s, FILE *stream);
size_t fread(void *ptr, size_t size, size_t n_items, FILE *stream);
int fseek(FILE *stream, long int offset, int whence);
int fsetpos(FILE *stream, fpos_t *pos);
long ftell(FILE *stream);
size_t fwrite(const void *ptr, size_t size, size_t n_items, FILE *stream);
char *gets(char *s);
int printf(const char *format, ...); int fclose(FILE *stream);
int puts(const char *s); int fflush(FILE *stream);
int rename(const char *source, const char *target); FILE *fdopen(int fd, const char *type);
int sprintf(char *dest, const char *format, ...); int feof(FILE *stream); /* Prototyped but not implemented */
int ungetc(int c, FILE *stream); int ferror(FILE *stream); /* Prototyped but not implemented */
int vprintf(const char *s, va_list ap); int fileno(FAR FILE *stream);
int vfprintf(FILE *stream, const char *s, va_list ap); int fgetc(FILE *stream);
int vsprintf(char *buf, const char *s, va_list ap); int fgetpos(FILE *stream, fpos_t *pos);
char *fgets(char *s, int n, FILE *stream);
FILE *fopen(const char *path, const char *type);
int fprintf(FILE *stream, const char *format, ...);
int fputc(int c, FILE *stream);
int fputs(const char *s, FILE *stream);
size_t fread(void *ptr, size_t size, size_t n_items, FILE *stream);
int fseek(FILE *stream, long int offset, int whence);
int fsetpos(FILE *stream, fpos_t *pos);
long ftell(FILE *stream);
size_t fwrite(const void *ptr, size_t size, size_t n_items, FILE *stream);
char *gets(char *s);
FILE *fdopen(int fd, const char *type); int printf(const char *format, ...);
int fstat(int fd, FAR struct stat *buf); /* Prototyped but not implemented */ int puts(const char *s);
int mkdir(const char *path, mode_t mode); int rename(const char *source, const char *target);
int rmdir(const char *path); int snprintf(FAR char *buf, size_t size, const char *format, ...);
int stat(const char *path, FAR struct stat *buf); int sprintf(char *dest, const char *format, ...);
int statfs(const char *path, FAR struct statfs *buf); /* Prototyped but not implemented */ int sscanf(const char *buf, const char *fmt, ...);
int ungetc(int c, FILE *stream);
int vprintf(const char *s, va_list ap);
int vfprintf(FILE *stream, const char *s, va_list ap);
int vsnprintf(FAR char *buf, size_t size, const char *format, va_list ap);
int vsscanf(char *buf, const char *s, va_list ap);
int vsprintf(char *buf, const char *s, va_list ap);
#include &lt;sys/stat.h&gt;
int mkdir(FAR const char *pathname, mode_t mode);
int mkfifo(FAR const char *pathname, mode_t mode);
int stat(const char *path, FAR struct stat *buf);
int fstat(int fd, FAR struct stat *buf);
#include &lt;sys/statfs.h&gt;
int statfs(const char *path, struct statfs *buf);
int fstatfs(int fd, struct statfs *buf);
</pre></ul> </pre></ul>
<h3><a name="PipesNFifos">2.11.5 Pipes and FIFOs</a></h3> <h3><a name="stdstrings">2.11.6 Standard String Operations</a></h3>
<ul><pre>
#include &lt;string.h&gt;
<h3>2.11.5.1 <a name="pipe"><code>pipe</code></a></h3> char *strchr(const char *s, int c);
FAR char *strdup(const char *s);
const char *strerror(int);
size_t strlen(const char *);
char *strcat(char *, const char *);
char *strncat(char *, const char *, size_t);
int strcmp(const char *, const char *);
int strncmp(const char *, const char *, size_t);
int strcasecmp(const char *, const char *);
int strncasecmp(const char *, const char *, size_t);
char *strcpy(char *dest, const char *src);
char *strncpy(char *, const char *, size_t);
char *strpbrk(const char *, const char *);
char *strchr(const char *, int);
char *strrchr(const char *, int);
size_t strspn(const char *, const char *);
size_t strcspn(const char *, const char *);
char *strstr(const char *, const char *);
char *strtok(char *, const char *);
char *strtok_r(char *, const char *, char **);
void *memset(void *s, int c, size_t n);
void *memcpy(void *dest, const void *src, size_t n);
int memcmp(const void *s1, const void *s2, size_t n);
void *memmove(void *dest, const void *src, size_t count);
# define bzero(s,n) (void)memset(s,0,n)
</pre></ul>
<h3><a name="PipesNFifos">2.11.7 Pipes and FIFOs</a></h3>
<h3>2.11.7.1 <a name="pipe"><code>pipe</code></a></h3>
<p> <p>
<b>Function Prototype:</b> <b>Function Prototype:</b>
</p> </p>
@@ -6403,7 +6471,7 @@ interface of the same name.
</ul> </ul>
</p> </p>
<h3>2.11.5.2 <a name="mkfifo"><code>mkfifo</code></a></h3> <h3>2.11.7.2 <a name="mkfifo"><code>mkfifo</code></a></h3>
<p> <p>
<b>Function Prototype:</b> <b>Function Prototype:</b>
</p> </p>
@@ -6450,8 +6518,8 @@ interface of the same name.
</ul> </ul>
</p> </p>
<h3><a name="fatsupport">2.11.6 FAT File System Support</a></h3> <h3><a name="fatsupport">2.11.8 FAT File System Support</a></h3>
<h3>2.11.6.1 <a name="mkfatfs"><code>mkfatfs</code></a></h3> <h3>2.11.8.1 <a name="mkfatfs"><code>mkfatfs</code></a></h3>
<p> <p>
<b>Function Prototype:</b> <b>Function Prototype:</b>
</p> </p>
@@ -6528,7 +6596,7 @@ struct fat_format_s
</ul> </ul>
</p> </p>
<h3><a name="mmapxip">2.11.7 <code>mmap()</code> and eXecute In Place (XIP)</a></h3> <h3><a name="mmapxip">2.11.9 <code>mmap()</code> and eXecute In Place (XIP)</a></h3>
<p> <p>
NuttX operates in a flat open address space. NuttX operates in a flat open address space.
Therefore, it generally does not require <code>mmap()</code> functionality. Therefore, it generally does not require <code>mmap()</code> functionality.
@@ -6551,7 +6619,7 @@ struct fat_format_s
</ol> </ol>
</p> </p>
<h3><a name="mmap">2.11.7.1 <code>mmap</code></a></h3> <h3><a name="mmap">2.11.9.1 <code>mmap</code></a></h3>
<p> <p>
<b>Function Prototype:</b> <b>Function Prototype:</b>
</p> </p>