Prepare headers for use in ISO C++ compliant implementations.

1 files changed, 53 insertions, 3 deletions

diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
index 232b3812fa..6ab675fc57 100644
--- a/stdlib/stdlib.h
+++ b/stdlib/stdlib.h
@@ -90,6 +90,7 @@ typedef union
 # define WIFSTOPPED(status)	__WIFSTOPPED(__WAIT_INT(status))
 #endif	/* X/Open and <sys/wait.h> not included.  */
 
+__BEGIN_NAMESPACE_STD
 /* Returned by `div'.  */
 typedef struct
   {
@@ -106,8 +107,10 @@ typedef struct
   } ldiv_t;
 # define __ldiv_t_defined	1
 #endif
+__END_NAMESPACE_STD
 
 #if defined __USE_ISOC99 && !defined __lldiv_t_defined
+__BEGIN_NAMESPACE_C99
 /* Returned by `lldiv'.  */
 __extension__ typedef struct
   {
@@ -115,6 +118,7 @@ __extension__ typedef struct
     long long int rem;		/* Remainder.  */
   } lldiv_t;
 # define __lldiv_t_defined	1
+__END_NAMESPACE_C99
 #endif
 
 
@@ -133,32 +137,41 @@ __extension__ typedef struct
 extern size_t __ctype_get_mb_cur_max (void) __THROW;
 
 
+__BEGIN_NAMESPACE_STD
 /* Convert a string to a floating-point number.  */
 extern double atof (__const char *__nptr) __THROW __attribute_pure__;
 /* Convert a string to an integer.  */
 extern int atoi (__const char *__nptr) __THROW __attribute_pure__;
 /* Convert a string to a long integer.  */
 extern long int atol (__const char *__nptr) __THROW __attribute_pure__;
+__END_NAMESPACE_STD
 
 #if defined __USE_ISOC99 || (defined __GLIBC_HAVE_LONG_LONG && defined __USE_MISC)
+__BEGIN_NAMESPACE_C99
 /* Convert a string to a long long integer.  */
 __extension__ extern long long int atoll (__const char *__nptr)
      __THROW __attribute_pure__;
+__END_NAMESPACE_C99
 #endif
 
+__BEGIN_NAMESPACE_STD
 /* Convert a string to a floating-point number.  */
 extern double strtod (__const char *__restrict __nptr,
 		      char **__restrict __endptr) __THROW;
+__END_NAMESPACE_STD
 
 #ifdef	__USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Likewise for `float' and `long double' sizes of floating-point numbers.  */
 extern float strtof (__const char *__restrict __nptr,
 		     char **__restrict __endptr) __THROW;
 
 extern long double strtold (__const char *__restrict __nptr,
 			    char **__restrict __endptr) __THROW;
+__END_NAMESPACE_C99
 #endif
 
+__BEGIN_NAMESPACE_STD
 /* Convert a string to a long integer.  */
 extern long int strtol (__const char *__restrict __nptr,
 			char **__restrict __endptr, int __base) __THROW;
@@ -166,6 +179,7 @@ extern long int strtol (__const char *__restrict __nptr,
 extern unsigned long int strtoul (__const char *__restrict __nptr,
 				  char **__restrict __endptr, int __base)
      __THROW;
+__END_NAMESPACE_C99
 
 #if defined __GLIBC_HAVE_LONG_LONG && defined __USE_BSD
 /* Convert a string to a quadword integer.  */
@@ -180,8 +194,7 @@ extern unsigned long long int strtouq (__const char *__restrict __nptr,
 #endif /* GCC and use BSD.  */
 
 #if defined __USE_ISOC99 || (defined __GLIBC_HAVE_LONG_LONG && defined __USE_MISC)
-/* These functions will part of the standard C library in ISO C99.  */
-
+__BEGIN_NAMESPACE_C99
 /* Convert a string to a quadword integer.  */
 __extension__
 extern long long int strtoll (__const char *__restrict __nptr,
@@ -191,6 +204,7 @@ __extension__
 extern unsigned long long int strtoull (__const char *__restrict __nptr,
 					char **__restrict __endptr, int __base)
      __THROW;
+__END_NAMESPACE_C99
 #endif /* ISO C99 or GCC and use MISC.  */
 
 
@@ -290,6 +304,7 @@ extern unsigned long long int __strtoull_internal (__const char *
 #ifdef __USE_EXTERN_INLINES
 /* Define inline functions which call the internal entry points.  */
 
+__BEGIN_NAMESPACE_STD
 extern __inline double
 strtod (__const char *__restrict __nptr, char **__restrict __endptr) __THROW
 {
@@ -307,8 +322,10 @@ strtoul (__const char *__restrict __nptr, char **__restrict __endptr,
 {
   return __strtoul_internal (__nptr, __endptr, __base, 0);
 }
+__END_NAMESPACE_STD
 
 # ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 extern __inline float
 strtof (__const char *__restrict __nptr, char **__restrict __endptr) __THROW
 {
@@ -319,6 +336,7 @@ strtold (__const char *__restrict __nptr, char **__restrict __endptr) __THROW
 {
   return __strtold_internal (__nptr, __endptr, 0);
 }
+__END_NAMESPACE_C99
 # endif
 
 # ifdef __USE_BSD
@@ -337,6 +355,7 @@ strtouq (__const char *__restrict __nptr, char **__restrict __endptr,
 # endif
 
 # if defined __USE_MISC || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 __extension__ extern __inline long long int
 strtoll (__const char *__restrict __nptr, char **__restrict __endptr,
 	 int __base) __THROW
@@ -349,8 +368,10 @@ strtoull (__const char * __restrict __nptr, char **__restrict __endptr,
 {
   return __strtoull_internal (__nptr, __endptr, __base, 0);
 }
+__END_NAMESPACE_C99
 # endif
 
+__BEGIN_NAMESPACE_STD
 extern __inline double
 atof (__const char *__nptr) __THROW
 {
@@ -366,13 +387,16 @@ atol (__const char *__nptr) __THROW
 {
   return strtol (__nptr, (char **) NULL, 10);
 }
+__END_NAMESPACE_STD
 
 # if defined __USE_MISC || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 __extension__ extern __inline long long int
 atoll (__const char *__nptr) __THROW
 {
   return strtoll (__nptr, (char **) NULL, 10);
 }
+__END_NAMESPACE_C99
 # endif
 #endif /* Optimizing and Inlining.  */
 
@@ -442,10 +466,12 @@ extern int setstate_r (char *__restrict __statebuf,
 #endif	/* Use SVID || extended X/Open.  */
 
 
+__BEGIN_NAMESPACE_STD
 /* Return a random integer between 0 and RAND_MAX inclusive.  */
 extern int rand (void) __THROW;
 /* Seed the random number generator with the given number.  */
 extern void srand (unsigned int __seed) __THROW;
+__END_NAMESPACE_STD
 
 #ifdef __USE_POSIX
 /* Reentrant interface according to POSIX.1.  */
@@ -522,20 +548,24 @@ extern int lcong48_r (unsigned short int __param[7],
 #endif /* don't just need malloc and calloc */
 
 #ifndef __malloc_and_calloc_defined
-#define __malloc_and_calloc_defined
+# define __malloc_and_calloc_defined
+__BEGIN_NAMESPACE_STD
 /* Allocate SIZE bytes of memory.  */
 extern void *malloc (size_t __size) __THROW __attribute_malloc__;
 /* Allocate NMEMB elements of SIZE bytes each, all initialized to 0.  */
 extern void *calloc (size_t __nmemb, size_t __size)
      __THROW __attribute_malloc__;
+__END_NAMESPACE_STD
 #endif
 
 #ifndef __need_malloc_and_calloc
+__BEGIN_NAMESPACE_STD
 /* Re-allocate the previously allocated block
    in PTR, making the new block SIZE bytes long.  */
 extern void *realloc (void *__ptr, size_t __size) __THROW __attribute_malloc__;
 /* Free a block allocated by `malloc', `realloc' or `calloc'.  */
 extern void free (void *__ptr) __THROW;
+__END_NAMESPACE_STD
 
 #ifdef	__USE_MISC
 /* Free a block.  An alias for `free'.	(Sun Unices).  */
@@ -557,12 +587,14 @@ extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
      __THROW __attribute_malloc__;
 #endif
 
+__BEGIN_NAMESPACE_STD
 /* Abort execution and generate a core-dump.  */
 extern void abort (void) __THROW __attribute__ ((__noreturn__));
 
 
 /* Register a function to be called when `exit' is called.  */
 extern int atexit (void (*__func) (void)) __THROW;
+__END_NAMESPACE_STD
 
 #ifdef	__USE_MISC
 /* Register a function to be called with the status
@@ -571,20 +603,26 @@ extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
      __THROW;
 #endif
 
+__BEGIN_NAMESPACE_STD
 /* Call all functions registered with `atexit' and `on_exit',
    in the reverse of the order in which they were registered
    perform stdio cleanup, and terminate program execution with STATUS.  */
 extern void exit (int __status) __THROW __attribute__ ((__noreturn__));
+__END_NAMESPACE_STD
 
 #ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Terminate the program with STATUS without calling any of the
    functions registered with `atexit' or `on_exit'.  */
 extern void _Exit (int __status) __THROW __attribute__ ((__noreturn__));
+__END_NAMESPACE_C99
 #endif
 
 
+__BEGIN_NAMESPACE_STD
 /* Return the value of envariable NAME, or NULL if it doesn't exist.  */
 extern char *getenv (__const char *__name) __THROW;
+__END_NAMESPACE_STD
 
 /* This function is similar to the above but returns NULL if the
    programs is running with SUID or SGID enabled.  */
@@ -651,8 +689,10 @@ extern char *mkdtemp (char *__template) __THROW;
 #endif
 
 
+__BEGIN_NAMESPACE_STD
 /* Execute the given line as a shell command.  */
 extern int system (__const char *__command) __THROW;
+__END_NAMESPACE_STD
 
 
 #ifdef	__USE_GNU
@@ -684,6 +724,7 @@ typedef __compar_fn_t comparison_fn_t;
 # endif
 #endif
 
+__BEGIN_NAMESPACE_STD
 /* Do a binary search for KEY in BASE, which consists of NMEMB elements
    of SIZE bytes each, using COMPAR to perform the comparisons.  */
 extern void *bsearch (__const void *__key, __const void *__base,
@@ -698,12 +739,15 @@ extern void qsort (void *__base, size_t __nmemb, size_t __size,
 /* Return the absolute value of X.  */
 extern int abs (int __x) __THROW __attribute__ ((__const__));
 extern long int labs (long int __x) __THROW __attribute__ ((__const__));
+__END_NAMESPACE_STD
+
 #ifdef __USE_ISOC99
 __extension__ extern long long int llabs (long long int __x)
      __THROW __attribute__ ((__const__));
 #endif
 
 
+__BEGIN_NAMESPACE_STD
 /* Return the `div_t', `ldiv_t' or `lldiv_t' representation
    of the value of NUMER over DENOM. */
 /* GCC may have built-ins for these someday.  */
@@ -711,10 +755,14 @@ extern div_t div (int __numer, int __denom)
      __THROW __attribute__ ((__const__));
 extern ldiv_t ldiv (long int __numer, long int __denom)
      __THROW __attribute__ ((__const__));
+__END_NAMESPACE_STD
+
 #ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 __extension__ extern lldiv_t lldiv (long long int __numer,
 				    long long int __denom)
      __THROW __attribute__ ((__const__));
+__END_NAMESPACE_C99
 #endif
 
 
@@ -768,6 +816,7 @@ extern int qfcvt_r (long double __value, int __ndigit,
 #endif	/* use MISC || use X/Open Unix */
 
 
+__BEGIN_NAMESPACE_STD
 /* Return the length of the multibyte character
    in S, which is no longer than N.  */
 extern int mblen (__const char *__s, size_t __n) __THROW;
@@ -787,6 +836,7 @@ extern size_t mbstowcs (wchar_t *__restrict  __pwcs,
 extern size_t wcstombs (char *__restrict __s,
 			__const wchar_t *__restrict __pwcs, size_t __n)
      __THROW;
+__END_NAMESPACE_STD
 
 
 #ifdef __USE_SVID