Patches from Petteri Aimonen + stdbool and rand() changes for Freddie Chopin

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5415 42af7a65-404d-4744-a932-0658087f49c3

include/cxx/cmath

@@ -69,6 +69,7 @@ namespace std
   using ::log10f;
   using ::log2f;
   using ::modff;
+  using ::roundf;
   using ::powf;
   using ::sinf;
   using ::sinhf;
@@ -95,6 +96,7 @@ namespace std
   using ::log10;
   using ::log2;
   using ::modf;
+  using ::round;
   using ::pow;
   using ::sin;
   using ::sinh;
@@ -121,6 +123,7 @@ namespace std
   using ::log10l;
   using ::log2l;
   using ::modfl;
+  using ::roundl;
   using ::powl;
   using ::sinl;
   using ::sinhl;

include/cxx/cstdlib

@@ -70,6 +70,7 @@ namespace std
 #endif
 
   using ::strtol;
+  using ::strtoul;
   using ::strtod;
 
   using ::malloc;

include/nuttx/fs/fs.h

@@ -176,7 +176,7 @@ struct mountpt_operations
 
   int     (*statfs)(FAR struct inode *mountpt, FAR struct statfs *buf);
 
-  /* Operations on pathes */
+  /* Operations on paths */
 
   int     (*unlink)(FAR struct inode *mountpt, FAR const char *relpath);
   int     (*mkdir)(FAR struct inode *mountpt, FAR const char *relpath, mode_t mode);

include/nuttx/math.h

@@ -141,6 +141,14 @@ double      floor (double x);
 long double floorl(long double x);
 #endif
 
+float       roundf(float x);
+#if CONFIG_HAVE_DOUBLE
+double      round (double x);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double roundl(long double x);
+#endif
+
 float       fabsf (float x);
 #if CONFIG_HAVE_DOUBLE
 double      fabs  (double x);

include/nuttx/mtd.h

@@ -220,7 +220,6 @@ EXTERN FAR struct mtd_dev_s *at24c_initialize(FAR struct i2c_dev_s *dev);
 
 EXTERN FAR struct mtd_dev_s *sst25_initialize(FAR struct spi_dev_s *dev);
 
-
 /****************************************************************************
  * Name: w25_initialize
  *
@@ -233,6 +232,8 @@ EXTERN FAR struct mtd_dev_s *sst25_initialize(FAR struct spi_dev_s *dev);
 
 EXTERN FAR struct mtd_dev_s *w25_initialize(FAR struct spi_dev_s *dev);
 
+EXTERN FAR struct mtd_dev_s *at25_initialize(FAR struct spi_dev_s *dev);
+
 #undef EXTERN
 #ifdef __cplusplus
 }

include/stdbool.h

@@ -42,10 +42,33 @@
 
 #include <nuttx/config.h>
 
+/* If CONFIG_ARCH_STDBOOL_H is set, then the archecture will provide its own
+ * stdbool.h file.  In this case, this header file will simply re-direct to
+ * the architecture-specfiic stdbool.h header file.
+ */
+
 #ifdef CONFIG_ARCH_STDBOOL_H
 #  include <arch/stdbool.h>
+
+/* NuttX will insist that the sizeof(bool) is 8-bits.  The sizeof of _Bool
+ * used by any specific compiler is implementation specific:  It can vary from
+ * compiler-to-compiler and even vary between different versions of the same
+ * compiler.  Compilers seems to be converging to sizeof(_Bool) == 1.  If that
+ * is true for your compiler, you should define CONFIG_C99_BOOL8 in your NuttX
+ * configuration for better standards compatibility.
+ *
+ * CONFIG_C99_BOOL8 - Means (1) your C++ compiler has sizeof(_Bool) == 8,
+ * (2) your C compiler supports the C99 _Bool intrinsic type, and (2) that
+ * the C99 _Bool type also has size 1.
+ */
+
 #else
+
+ /* nuttx/compiler.h may also define or undefine CONFIG_C99_BOOL8 */
+
 #  include <nuttx/compiler.h>
+
+#if !defined(__cplusplus) || !defined(CONFIG_C99_BOOL8)
 #  include <stdint.h>
 
 /****************************************************************************
@@ -58,10 +81,15 @@
  * NOTE: Under C99 'bool' is required to be defined to be the intrinsic type
  * _Bool.  However, in this NuttX context, we need backward compatibility
  * to pre-C99 standards where _Bool is not an intrinsic type.  Hence, we
- * use _Bool8 as the underlying type.
+ * use _Bool8 as the underlying type (unless CONFIG_C99_BOOL8 is defined)
  */
 
-#define bool  _Bool8
+#ifdef CONFIG_C99_BOOL8
+#  define bool _Bool
+#else
+#  define bool _Bool8
+#endif
+
 #define true  1
 #define false 0
 
@@ -83,7 +111,10 @@
  * as the underlying type.
  */
 
+#ifndef CONFIG_C99_BOOL8
 typedef uint8_t _Bool8;
+#endif
 
+#endif /* __cplusplus && CONFIG_C99_BOOL8 */
 #endif /* CONFIG_ARCH_STDBOOL_H */
 #endif /* __INCLUDE_STDBOOL_H */