diff options
Diffstat (limited to 'include/stdlib.h')
| -rw-r--r-- | include/stdlib.h | 313 |
1 files changed, 187 insertions, 126 deletions
diff --git a/include/stdlib.h b/include/stdlib.h index ac73fc143..f7589d7ea 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-1999, 2000, 2001 Free Software Foundation, Inc. +/* Copyright (C) 1991-2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -92,6 +92,7 @@ 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 { @@ -108,8 +109,10 @@ 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 { @@ -117,6 +120,7 @@ __extension__ typedef struct long long int rem; /* Remainder. */ } lldiv_t; # define __lldiv_t_defined 1 +__END_NAMESPACE_C99 #endif @@ -130,12 +134,17 @@ __extension__ typedef struct #define EXIT_SUCCESS 0 /* Successful exit status. */ +/* Maximum length of a multibyte character in the current locale. */ +/* #define MB_CUR_MAX (__ctype_get_mb_cur_max ()) */ +/* extern size_t __ctype_get_mb_cur_max (void) __THROW; */ #ifdef __UCLIBC_HAS_WCHAR__ /* Maximum length of a multibyte character in the current locale. */ #define MB_CUR_MAX (_stdlib_mb_cur_max ()) extern size_t _stdlib_mb_cur_max (void) __THROW; #endif + +__BEGIN_NAMESPACE_STD #ifdef __UCLIBC_HAS_FLOATS__ /* Convert a string to a floating-point number. */ extern double atof (__const char *__nptr) __THROW __attribute_pure__; @@ -144,28 +153,36 @@ extern double atof (__const char *__nptr) __THROW __attribute_pure__; 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 __GNUC__ && defined __USE_MISC) +#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 +#endif /* __UCLIBC_HAS_FLOATS__ */ #ifdef __UCLIBC_HAS_FLOATS__ +__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 -#endif /* __UCLIBC_HAS_FLOATS__ */ +__BEGIN_NAMESPACE_STD /* Convert a string to a long integer. */ extern long int strtol (__const char *__restrict __nptr, char **__restrict __endptr, int __base) __THROW; @@ -173,8 +190,9 @@ 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 __GNUC__ && defined __USE_BSD +#if defined __GLIBC_HAVE_LONG_LONG && defined __USE_BSD /* Convert a string to a quadword integer. */ __extension__ extern long long int strtoq (__const char *__restrict __nptr, @@ -186,9 +204,8 @@ extern unsigned long long int strtouq (__const char *__restrict __nptr, __THROW; #endif /* GCC and use BSD. */ -#if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_MISC) -/* These functions will part of the standard C library in ISO C99. */ - +#if defined __USE_ISOC99 || (defined __GLIBC_HAVE_LONG_LONG && defined __USE_MISC) +__BEGIN_NAMESPACE_C99 /* Convert a string to a quadword integer. */ __extension__ extern long long int strtoll (__const char *__restrict __nptr, @@ -198,10 +215,11 @@ __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. */ -#if 0 +#ifdef __UCLIBC_HAS_XLOCALE__ #ifdef __USE_GNU /* The concept of one static locale per category is not very well thought out. Many applications will need to process its data using @@ -220,44 +238,43 @@ extern unsigned long long int strtoull (__const char *__restrict __nptr, /* Special versions of the functions above which take the locale to use as an additional parameter. */ -extern long int __strtol_l (__const char *__restrict __nptr, - char **__restrict __endptr, int __base, - __locale_t __loc) __THROW; +extern long int strtol_l (__const char *__restrict __nptr, + char **__restrict __endptr, int __base, + __locale_t __loc) __THROW; -extern unsigned long int __strtoul_l (__const char *__restrict __nptr, - char **__restrict __endptr, - int __base, __locale_t __loc) __THROW; +extern unsigned long int strtoul_l (__const char *__restrict __nptr, + char **__restrict __endptr, + int __base, __locale_t __loc) __THROW; __extension__ -extern long long int __strtoll_l (__const char *__restrict __nptr, - char **__restrict __endptr, int __base, - __locale_t __loc) __THROW; +extern long long int strtoll_l (__const char *__restrict __nptr, + char **__restrict __endptr, int __base, + __locale_t __loc) __THROW; __extension__ -extern unsigned long long int __strtoull_l (__const char *__restrict __nptr, - char **__restrict __endptr, - int __base, __locale_t __loc) +extern unsigned long long int strtoull_l (__const char *__restrict __nptr, + char **__restrict __endptr, + int __base, __locale_t __loc) __THROW; -extern double __strtod_l (__const char *__restrict __nptr, - char **__restrict __endptr, __locale_t __loc) +extern double strtod_l (__const char *__restrict __nptr, + char **__restrict __endptr, __locale_t __loc) __THROW; -extern float __strtof_l (__const char *__restrict __nptr, - char **__restrict __endptr, __locale_t __loc) __THROW; +extern float strtof_l (__const char *__restrict __nptr, + char **__restrict __endptr, __locale_t __loc) __THROW; -extern long double __strtold_l (__const char *__restrict __nptr, - char **__restrict __endptr, - __locale_t __loc) __THROW; +extern long double strtold_l (__const char *__restrict __nptr, + char **__restrict __endptr, + __locale_t __loc) __THROW; #endif /* GNU */ -#endif /* 0 */ +#endif /* __UCLIBC_HAS_XLOCALE__ */ #if 0 /* The internal entry points for `strtoX' take an extra flag argument saying whether or not to parse locale-dependent number grouping. */ -#ifdef __UCLIBC_HAS_FLOATS__ extern double __strtod_internal (__const char *__restrict __nptr, char **__restrict __endptr, int __group) __THROW; @@ -267,7 +284,6 @@ extern float __strtof_internal (__const char *__restrict __nptr, extern long double __strtold_internal (__const char *__restrict __nptr, char **__restrict __endptr, int __group) __THROW; -#endif /* __UCLIBC_HAS_FLOATS__ */ #ifndef __strtol_internal_defined extern long int __strtol_internal (__const char *__restrict __nptr, char **__restrict __endptr, @@ -300,72 +316,78 @@ extern unsigned long long int __strtoull_internal (__const char * #endif /* GCC */ #endif /* 0 */ -#ifdef __USE_EXTERN_INLINES -#if 0 +#if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ \ + && defined __USE_EXTERN_INLINES /* Define inline functions which call the internal entry points. */ -extern __inline double -strtod (__const char *__restrict __nptr, char **__restrict __endptr) __THROW -{ - return __strtod_internal (__nptr, __endptr, 0); -} -extern __inline long int -strtol (__const char *__restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtol_internal (__nptr, __endptr, __base, 0); -} -extern __inline unsigned long int -strtoul (__const char *__restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtoul_internal (__nptr, __endptr, __base, 0); -} - -# ifdef __USE_ISOC99 -extern __inline float -strtof (__const char *__restrict __nptr, char **__restrict __endptr) __THROW -{ - return __strtof_internal (__nptr, __endptr, 0); -} -extern __inline long double -strtold (__const char *__restrict __nptr, char **__restrict __endptr) __THROW -{ - return __strtold_internal (__nptr, __endptr, 0); -} -# endif - -# ifdef __USE_BSD -__extension__ extern __inline long long int -strtoq (__const char *__restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtoll_internal (__nptr, __endptr, __base, 0); -} -__extension__ extern __inline unsigned long long int -strtouq (__const char *__restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtoull_internal (__nptr, __endptr, __base, 0); -} -# endif - -# if defined __USE_MISC || defined __USE_ISOC99 -__extension__ extern __inline long long int -strtoll (__const char *__restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtoll_internal (__nptr, __endptr, __base, 0); -} -__extension__ extern __inline unsigned long long int -strtoull (__const char * __restrict __nptr, char **__restrict __endptr, - int __base) __THROW -{ - return __strtoull_internal (__nptr, __endptr, __base, 0); -} -# endif -#endif /* 0 */ - +/* __BEGIN_NAMESPACE_STD */ +/* extern __inline double */ +/* strtod (__const char *__restrict __nptr, char **__restrict __endptr) __THROW */ +/* { */ +/* return __strtod_internal (__nptr, __endptr, 0); */ +/* } */ +/* extern __inline long int */ +/* strtol (__const char *__restrict __nptr, char **__restrict __endptr, */ +/* int __base) __THROW */ +/* { */ +/* return __strtol_internal (__nptr, __endptr, __base, 0); */ +/* } */ +/* extern __inline unsigned long int */ +/* strtoul (__const char *__restrict __nptr, char **__restrict __endptr, */ +/* int __base) __THROW */ +/* { */ +/* 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 */ +/* { */ +/* return __strtof_internal (__nptr, __endptr, 0); */ +/* } */ +/* extern __inline long double */ +/* strtold (__const char *__restrict __nptr, char **__restrict __endptr) __THROW */ +/* { */ +/* return __strtold_internal (__nptr, __endptr, 0); */ +/* } */ +/* __END_NAMESPACE_C99 */ +/* # endif */ + +/* # ifdef __USE_BSD */ +/* __extension__ extern __inline long long int */ +/* strtoq (__const char *__restrict __nptr, char **__restrict __endptr, */ +/* int __base) __THROW */ +/* { */ +/* return __strtoll_internal (__nptr, __endptr, __base, 0); */ +/* } */ +/* __extension__ extern __inline unsigned long long int */ +/* strtouq (__const char *__restrict __nptr, char **__restrict __endptr, */ +/* int __base) __THROW */ +/* { */ +/* return __strtoull_internal (__nptr, __endptr, __base, 0); */ +/* } */ +/* # 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 */ +/* { */ +/* return __strtoll_internal (__nptr, __endptr, __base, 0); */ +/* } */ +/* __extension__ extern __inline unsigned long long int */ +/* strtoull (__const char * __restrict __nptr, char **__restrict __endptr, */ +/* int __base) __THROW */ +/* { */ +/* return __strtoull_internal (__nptr, __endptr, __base, 0); */ +/* } */ +/* __END_NAMESPACE_C99 */ +/* # endif */ + +__BEGIN_NAMESPACE_STD extern __inline double atof (__const char *__nptr) __THROW { @@ -381,13 +403,16 @@ 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. */ @@ -401,7 +426,9 @@ extern char *l64a (long int __n) __THROW; /* Read a number from a string S in base 64 as above. */ extern long int a64l (__const char *__s) __THROW __attribute_pure__; +#endif /* Use SVID || extended X/Open. */ +#if defined __USE_SVID || defined __USE_XOPEN_EXTENDED || defined __USE_BSD # include <sys/types.h> /* we need int32_t... */ /* These are the functions that actually do things. The `random', `srandom', @@ -454,13 +481,15 @@ extern int initstate_r (unsigned int __seed, char *__restrict __statebuf, extern int setstate_r (char *__restrict __statebuf, struct random_data *__restrict __buf) __THROW; # endif /* Use misc. */ -#endif /* Use SVID || extended X/Open. */ +#endif /* Use SVID || extended X/Open || BSD. */ +__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. */ @@ -541,34 +570,24 @@ 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__; -#if 0 -/* Cope with autoconf's broken AC_FUNC_MALLOC macro, which - * redefines malloc to rpl_malloc if it does not detect glibc - * style returning-a-valid-pointer-for-malloc(0) behavior. This - * calls malloc() as usual, but if __size is zero, we allocate and - * return a 1-byte block instead.... sigh... */ -static __inline void *rpl_malloc (size_t __size) -{ - if (__size == 0) { - __size++; - } - return malloc(__size); -} -#endif +__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). */ @@ -588,23 +607,30 @@ extern void *valloc (size_t __size) __THROW __attribute_malloc__; /* Allocate memory of SIZE bytes with an alignment of ALIGNMENT. */ extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size) __THROW __attribute_malloc__; +#if 0 +/* Cope with autoconf's broken AC_FUNC_MALLOC macro, which + * redefines malloc to rpl_malloc if it does not detect glibc + * style returning-a-valid-pointer-for-malloc(0) behavior. This + * calls malloc() as usual, but if __size is zero, we allocate and + * return a 1-byte block instead.... sigh... */ +static __inline void *rpl_malloc (size_t __size) +{ + if (__size == 0) { + __size++; + } + return malloc(__size); +} +#endif #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; - -/* The following is used by uClibc in atexit.c and sysconf.c */ -/* We have no limit when __UCLIBC_DYNAMIC_ATEXIT__ is enabled. */ -#ifdef __UCLIBC_DYNAMIC_ATEXIT__ -# define __UCLIBC_MAX_ATEXIT INT_MAX -#else -# define __UCLIBC_MAX_ATEXIT 20 -#endif - +__END_NAMESPACE_STD #ifdef __USE_MISC /* Register a function to be called with the status @@ -613,20 +639,26 @@ 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. */ @@ -649,6 +681,15 @@ extern int setenv (__const char *__name, __const char *__value, int __replace) extern int unsetenv (__const char *__name) __THROW; #endif +/* The following is used by uClibc in atexit.c and sysconf.c */ +/* We have no limit when __UCLIBC_DYNAMIC_ATEXIT__ is enabled. */ +#ifdef __UCLIBC_DYNAMIC_ATEXIT__ +# define __UCLIBC_MAX_ATEXIT INT_MAX +#else +# define __UCLIBC_MAX_ATEXIT 20 +#endif + + #ifdef __USE_MISC /* The `clearenv' was planned to be added to POSIX.1 but probably never made it. Nevertheless the POSIX.9 standard (POSIX bindings @@ -668,18 +709,21 @@ extern char *mktemp (char *__template) __THROW; The last six characters of TEMPLATE must be "XXXXXX"; they are replaced with a string that makes the filename unique. Returns a file descriptor open on the file for reading and writing, - or -1 if it cannot create a uniquely-named file. */ + or -1 if it cannot create a uniquely-named file. + + This function is a possible cancellation points and therefore not + marked with __THROW. */ # ifndef __USE_FILE_OFFSET64 -extern int mkstemp (char *__template) __THROW; +extern int mkstemp (char *__template); # else # ifdef __REDIRECT -extern int __REDIRECT (mkstemp, (char *__template) __THROW, mkstemp64); +extern int __REDIRECT (mkstemp, (char *__template), mkstemp64); # else # define mkstemp mkstemp64 # endif # endif # ifdef __USE_LARGEFILE64 -extern int mkstemp64 (char *__template) __THROW; +extern int mkstemp64 (char *__template); # endif #endif @@ -693,8 +737,13 @@ extern char *mkdtemp (char *__template) __THROW; #endif -/* Execute the given line as a shell command. */ -extern int system (__const char *__command) __THROW; +__BEGIN_NAMESPACE_STD +/* Execute the given line as a shell command. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int system (__const char *__command); +__END_NAMESPACE_STD #if 0 @@ -727,6 +776,7 @@ 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, @@ -741,12 +791,15 @@ 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. */ @@ -754,10 +807,14 @@ 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 @@ -814,7 +871,9 @@ extern int qfcvt_r (long double __value, int __ndigit, #endif /* __UCLIBC_HAS_FLOATS__ */ #endif + #ifdef __UCLIBC_HAS_WCHAR__ +__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; @@ -834,7 +893,9 @@ extern size_t mbstowcs (wchar_t *__restrict __pwcs, extern size_t wcstombs (char *__restrict __s, __const wchar_t *__restrict __pwcs, size_t __n) __THROW; -#endif /* def __UCLIBC_HAS_WCHAR__ */ +__END_NAMESPACE_STD +#endif /* __UCLIBC_HAS_WCHAR__ */ + #ifdef __USE_SVID /* Determine whether the string value of RESPONSE matches the affirmation |