You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1029 lines
35 KiB
1029 lines
35 KiB
3 years ago
|
/* Copyright (C) 1991-2021 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
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with the GNU C Library; if not, see
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ISO C99 Standard: 7.20 General utilities <stdlib.h>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _STDLIB_H
|
||
|
|
|
||
|
|
#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
|
||
|
|
#include <bits/libc-header-start.h>
|
||
|
|
|
||
|
|
/* Get size_t, wchar_t and NULL from <stddef.h>. */
|
||
|
|
#define __need_size_t
|
||
|
|
#define __need_wchar_t
|
||
|
|
#define __need_NULL
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
__BEGIN_DECLS
|
||
|
|
|
||
|
|
#define _STDLIB_H 1
|
||
|
|
|
||
|
|
#if (defined __USE_XOPEN || defined __USE_XOPEN2K8) && !defined _SYS_WAIT_H
|
||
|
|
/* XPG requires a few symbols from <sys/wait.h> being defined. */
|
||
|
|
# include <bits/waitflags.h>
|
||
|
|
# include <bits/waitstatus.h>
|
||
|
|
|
||
|
|
/* Define the macros <sys/wait.h> also would define this way. */
|
||
|
|
# define WEXITSTATUS(status) __WEXITSTATUS (status)
|
||
|
|
# define WTERMSIG(status) __WTERMSIG (status)
|
||
|
|
# define WSTOPSIG(status) __WSTOPSIG (status)
|
||
|
|
# define WIFEXITED(status) __WIFEXITED (status)
|
||
|
|
# define WIFSIGNALED(status) __WIFSIGNALED (status)
|
||
|
|
# define WIFSTOPPED(status) __WIFSTOPPED (status)
|
||
|
|
# ifdef __WIFCONTINUED
|
||
|
|
# define WIFCONTINUED(status) __WIFCONTINUED (status)
|
||
|
|
# endif
|
||
|
|
#endif /* X/Open or XPG7 and <sys/wait.h> not included. */
|
||
|
|
|
||
|
|
/* _FloatN API tests for enablement. */
|
||
|
|
#include <bits/floatn.h>
|
||
|
|
|
||
|
|
/* Returned by `div'. */
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
int quot; /* Quotient. */
|
||
|
|
int rem; /* Remainder. */
|
||
|
|
} div_t;
|
||
|
|
|
||
|
|
/* Returned by `ldiv'. */
|
||
|
|
#ifndef __ldiv_t_defined
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
long int quot; /* Quotient. */
|
||
|
|
long int rem; /* Remainder. */
|
||
|
|
} ldiv_t;
|
||
|
|
# define __ldiv_t_defined 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined __USE_ISOC99 && !defined __lldiv_t_defined
|
||
|
|
/* Returned by `lldiv'. */
|
||
|
|
__extension__ typedef struct
|
||
|
|
{
|
||
|
|
long long int quot; /* Quotient. */
|
||
|
|
long long int rem; /* Remainder. */
|
||
|
|
} lldiv_t;
|
||
|
|
# define __lldiv_t_defined 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* The largest number rand will return (same as INT_MAX). */
|
||
|
|
#define RAND_MAX 2147483647
|
||
|
|
|
||
|
|
|
||
|
|
/* We define these the same for all machines.
|
||
|
|
Changes from this to the outside world should be done in `_exit'. */
|
||
|
|
#define EXIT_FAILURE 1 /* Failing exit status. */
|
||
|
|
#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 __wur;
|
||
|
|
|
||
|
|
|
||
|
|
/* Convert a string to a floating-point number. */
|
||
|
|
extern double atof (const char *__nptr)
|
||
|
|
__THROW __attribute_pure__ __nonnull ((1)) __wur;
|
||
|
|
/* Convert a string to an integer. */
|
||
|
|
extern int atoi (const char *__nptr)
|
||
|
|
__THROW __attribute_pure__ __nonnull ((1)) __wur;
|
||
|
|
/* Convert a string to a long integer. */
|
||
|
|
extern long int atol (const char *__nptr)
|
||
|
|
__THROW __attribute_pure__ __nonnull ((1)) __wur;
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
/* Convert a string to a long long integer. */
|
||
|
|
__extension__ extern long long int atoll (const char *__nptr)
|
||
|
|
__THROW __attribute_pure__ __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Convert a string to a floating-point number. */
|
||
|
|
extern double strtod (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
/* Likewise for `float' and `long double' sizes of floating-point numbers. */
|
||
|
|
extern float strtof (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr) __THROW __nonnull ((1));
|
||
|
|
|
||
|
|
extern long double strtold (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Likewise for '_FloatN' and '_FloatNx'. */
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float16 strtof16 (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float32 strtof32 (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float64 strtof64 (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float128 strtof128 (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float32x strtof32x (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float64x strtof64x (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern _Float128x strtof128x (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Convert a string to a long integer. */
|
||
|
|
extern long int strtol (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
/* Convert a string to an unsigned long integer. */
|
||
|
|
extern unsigned long int strtoul (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Convert a string to a quadword integer. */
|
||
|
|
__extension__
|
||
|
|
extern long long int strtoq (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
/* Convert a string to an unsigned quadword integer. */
|
||
|
|
__extension__
|
||
|
|
extern unsigned long long int strtouq (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif /* Use misc. */
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
/* Convert a string to a quadword integer. */
|
||
|
|
__extension__
|
||
|
|
extern long long int strtoll (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
/* Convert a string to an unsigned quadword integer. */
|
||
|
|
__extension__
|
||
|
|
extern unsigned long long int strtoull (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif /* ISO C99 or use MISC. */
|
||
|
|
|
||
|
|
/* Convert a floating-point number to a string. */
|
||
|
|
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
|
||
|
|
extern int strfromd (char *__dest, size_t __size, const char *__format,
|
||
|
|
double __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
|
||
|
|
extern int strfromf (char *__dest, size_t __size, const char *__format,
|
||
|
|
float __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
|
||
|
|
extern int strfroml (char *__dest, size_t __size, const char *__format,
|
||
|
|
long double __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf16 (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float16 __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf32 (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float32 __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf64 (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float64 __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf128 (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float128 __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf32x (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float32x __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf64x (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float64x __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if __HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
||
|
|
extern int strfromf128x (char *__dest, size_t __size, const char * __format,
|
||
|
|
_Float128x __f)
|
||
|
|
__THROW __nonnull ((3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
/* Parallel versions of the functions above which take the locale to
|
||
|
|
use as an additional parameter. These are GNU extensions inspired
|
||
|
|
by the POSIX.1-2008 extended locale API. */
|
||
|
|
# include <bits/types/locale_t.h>
|
||
|
|
|
||
|
|
extern long int strtol_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base,
|
||
|
|
locale_t __loc) __THROW __nonnull ((1, 4));
|
||
|
|
|
||
|
|
extern unsigned long int strtoul_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
int __base, locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 4));
|
||
|
|
|
||
|
|
__extension__
|
||
|
|
extern long long int strtoll_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, int __base,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 4));
|
||
|
|
|
||
|
|
__extension__
|
||
|
|
extern unsigned long long int strtoull_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
int __base, locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 4));
|
||
|
|
|
||
|
|
extern double strtod_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
|
||
|
|
extern float strtof_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr, locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
|
||
|
|
extern long double strtold_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT16
|
||
|
|
extern _Float16 strtof16_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT32
|
||
|
|
extern _Float32 strtof32_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT64
|
||
|
|
extern _Float64 strtof64_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT128
|
||
|
|
extern _Float128 strtof128_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT32X
|
||
|
|
extern _Float32x strtof32x_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT64X
|
||
|
|
extern _Float64x strtof64x_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if __HAVE_FLOAT128X
|
||
|
|
extern _Float128x strtof128x_l (const char *__restrict __nptr,
|
||
|
|
char **__restrict __endptr,
|
||
|
|
locale_t __loc)
|
||
|
|
__THROW __nonnull ((1, 3));
|
||
|
|
# endif
|
||
|
|
#endif /* GNU */
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __USE_EXTERN_INLINES
|
||
|
|
__extern_inline int
|
||
|
|
__NTH (atoi (const char *__nptr))
|
||
|
|
{
|
||
|
|
return (int) strtol (__nptr, (char **) NULL, 10);
|
||
|
|
}
|
||
|
|
__extern_inline long int
|
||
|
|
__NTH (atol (const char *__nptr))
|
||
|
|
{
|
||
|
|
return strtol (__nptr, (char **) NULL, 10);
|
||
|
|
}
|
||
|
|
|
||
|
|
# ifdef __USE_ISOC99
|
||
|
|
__extension__ __extern_inline long long int
|
||
|
|
__NTH (atoll (const char *__nptr))
|
||
|
|
{
|
||
|
|
return strtoll (__nptr, (char **) NULL, 10);
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
#endif /* Optimizing and Inlining. */
|
||
|
|
|
||
|
|
|
||
|
|
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
|
||
|
|
/* Convert N to base 64 using the digits "./0-9A-Za-z", least-significant
|
||
|
|
digit first. Returns a pointer to static storage overwritten by the
|
||
|
|
next call. */
|
||
|
|
extern char *l64a (long int __n) __THROW __wur;
|
||
|
|
|
||
|
|
/* Read a number from a string S in base 64 as above. */
|
||
|
|
extern long int a64l (const char *__s)
|
||
|
|
__THROW __attribute_pure__ __nonnull ((1)) __wur;
|
||
|
|
|
||
|
|
#endif /* Use misc || extended X/Open. */
|
||
|
|
|
||
|
|
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
|
||
|
|
# include <sys/types.h> /* we need int32_t... */
|
||
|
|
|
||
|
|
/* These are the functions that actually do things. The `random', `srandom',
|
||
|
|
`initstate' and `setstate' functions are those from BSD Unices.
|
||
|
|
The `rand' and `srand' functions are required by the ANSI standard.
|
||
|
|
We provide both interfaces to the same random number generator. */
|
||
|
|
/* Return a random long integer between 0 and 2^31-1 inclusive. */
|
||
|
|
extern long int random (void) __THROW;
|
||
|
|
|
||
|
|
/* Seed the random number generator with the given number. */
|
||
|
|
extern void srandom (unsigned int __seed) __THROW;
|
||
|
|
|
||
|
|
/* Initialize the random number generator to use state buffer STATEBUF,
|
||
|
|
of length STATELEN, and seed it with SEED. Optimal lengths are 8, 16,
|
||
|
|
32, 64, 128 and 256, the bigger the better; values less than 8 will
|
||
|
|
cause an error and values greater than 256 will be rounded down. */
|
||
|
|
extern char *initstate (unsigned int __seed, char *__statebuf,
|
||
|
|
size_t __statelen) __THROW __nonnull ((2));
|
||
|
|
|
||
|
|
/* Switch the random number generator to state buffer STATEBUF,
|
||
|
|
which should have been previously initialized by `initstate'. */
|
||
|
|
extern char *setstate (char *__statebuf) __THROW __nonnull ((1));
|
||
|
|
|
||
|
|
|
||
|
|
# ifdef __USE_MISC
|
||
|
|
/* Reentrant versions of the `random' family of functions.
|
||
|
|
These functions all use the following data structure to contain
|
||
|
|
state, rather than global state variables. */
|
||
|
|
|
||
|
|
struct random_data
|
||
|
|
{
|
||
|
|
int32_t *fptr; /* Front pointer. */
|
||
|
|
int32_t *rptr; /* Rear pointer. */
|
||
|
|
int32_t *state; /* Array of state values. */
|
||
|
|
int rand_type; /* Type of random number generator. */
|
||
|
|
int rand_deg; /* Degree of random number generator. */
|
||
|
|
int rand_sep; /* Distance between front and rear. */
|
||
|
|
int32_t *end_ptr; /* Pointer behind state table. */
|
||
|
|
};
|
||
|
|
|
||
|
|
extern int random_r (struct random_data *__restrict __buf,
|
||
|
|
int32_t *__restrict __result) __THROW __nonnull ((1, 2));
|
||
|
|
|
||
|
|
extern int srandom_r (unsigned int __seed, struct random_data *__buf)
|
||
|
|
__THROW __nonnull ((2));
|
||
|
|
|
||
|
|
extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
|
||
|
|
size_t __statelen,
|
||
|
|
struct random_data *__restrict __buf)
|
||
|
|
__THROW __nonnull ((2, 4));
|
||
|
|
|
||
|
|
extern int setstate_r (char *__restrict __statebuf,
|
||
|
|
struct random_data *__restrict __buf)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
# endif /* Use misc. */
|
||
|
|
#endif /* Use extended X/Open || misc. */
|
||
|
|
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
|
||
|
|
#ifdef __USE_POSIX199506
|
||
|
|
/* Reentrant interface according to POSIX.1. */
|
||
|
|
extern int rand_r (unsigned int *__seed) __THROW;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if defined __USE_MISC || defined __USE_XOPEN
|
||
|
|
/* System V style 48-bit random number generator functions. */
|
||
|
|
|
||
|
|
/* Return non-negative, double-precision floating-point value in [0.0,1.0). */
|
||
|
|
extern double drand48 (void) __THROW;
|
||
|
|
extern double erand48 (unsigned short int __xsubi[3]) __THROW __nonnull ((1));
|
||
|
|
|
||
|
|
/* Return non-negative, long integer in [0,2^31). */
|
||
|
|
extern long int lrand48 (void) __THROW;
|
||
|
|
extern long int nrand48 (unsigned short int __xsubi[3])
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
|
||
|
|
/* Return signed, long integers in [-2^31,2^31). */
|
||
|
|
extern long int mrand48 (void) __THROW;
|
||
|
|
extern long int jrand48 (unsigned short int __xsubi[3])
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
|
||
|
|
/* Seed random number generator. */
|
||
|
|
extern void srand48 (long int __seedval) __THROW;
|
||
|
|
extern unsigned short int *seed48 (unsigned short int __seed16v[3])
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
extern void lcong48 (unsigned short int __param[7]) __THROW __nonnull ((1));
|
||
|
|
|
||
|
|
# ifdef __USE_MISC
|
||
|
|
/* Data structure for communication with thread safe versions. This
|
||
|
|
type is to be regarded as opaque. It's only exported because users
|
||
|
|
have to allocate objects of this type. */
|
||
|
|
struct drand48_data
|
||
|
|
{
|
||
|
|
unsigned short int __x[3]; /* Current state. */
|
||
|
|
unsigned short int __old_x[3]; /* Old state. */
|
||
|
|
unsigned short int __c; /* Additive const. in congruential formula. */
|
||
|
|
unsigned short int __init; /* Flag for initializing. */
|
||
|
|
__extension__ unsigned long long int __a; /* Factor in congruential
|
||
|
|
formula. */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Return non-negative, double-precision floating-point value in [0.0,1.0). */
|
||
|
|
extern int drand48_r (struct drand48_data *__restrict __buffer,
|
||
|
|
double *__restrict __result) __THROW __nonnull ((1, 2));
|
||
|
|
extern int erand48_r (unsigned short int __xsubi[3],
|
||
|
|
struct drand48_data *__restrict __buffer,
|
||
|
|
double *__restrict __result) __THROW __nonnull ((1, 2));
|
||
|
|
|
||
|
|
/* Return non-negative, long integer in [0,2^31). */
|
||
|
|
extern int lrand48_r (struct drand48_data *__restrict __buffer,
|
||
|
|
long int *__restrict __result)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
extern int nrand48_r (unsigned short int __xsubi[3],
|
||
|
|
struct drand48_data *__restrict __buffer,
|
||
|
|
long int *__restrict __result)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
|
||
|
|
/* Return signed, long integers in [-2^31,2^31). */
|
||
|
|
extern int mrand48_r (struct drand48_data *__restrict __buffer,
|
||
|
|
long int *__restrict __result)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
extern int jrand48_r (unsigned short int __xsubi[3],
|
||
|
|
struct drand48_data *__restrict __buffer,
|
||
|
|
long int *__restrict __result)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
|
||
|
|
/* Seed random number generator. */
|
||
|
|
extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
|
||
|
|
__THROW __nonnull ((2));
|
||
|
|
|
||
|
|
extern int seed48_r (unsigned short int __seed16v[3],
|
||
|
|
struct drand48_data *__buffer) __THROW __nonnull ((1, 2));
|
||
|
|
|
||
|
|
extern int lcong48_r (unsigned short int __param[7],
|
||
|
|
struct drand48_data *__buffer)
|
||
|
|
__THROW __nonnull ((1, 2));
|
||
|
|
# endif /* Use misc. */
|
||
|
|
#endif /* Use misc or X/Open. */
|
||
|
|
|
||
|
|
/* Allocate SIZE bytes of memory. */
|
||
|
|
extern void *malloc (size_t __size) __THROW __attribute_malloc__
|
||
|
|
__attribute_alloc_size__ ((1)) __wur;
|
||
|
|
/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
|
||
|
|
extern void *calloc (size_t __nmemb, size_t __size)
|
||
|
|
__THROW __attribute_malloc__ __attribute_alloc_size__ ((1, 2)) __wur;
|
||
|
|
|
||
|
|
/* Re-allocate the previously allocated block
|
||
|
|
in PTR, making the new block SIZE bytes long. */
|
||
|
|
/* __attribute_malloc__ is not used, because if realloc returns
|
||
|
|
the same pointer that was passed to it, aliasing needs to be allowed
|
||
|
|
between objects pointed by the old and new pointers. */
|
||
|
|
extern void *realloc (void *__ptr, size_t __size)
|
||
|
|
__THROW __attribute_warn_unused_result__ __attribute_alloc_size__ ((2));
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Re-allocate the previously allocated block in PTR, making the new
|
||
|
|
block large enough for NMEMB elements of SIZE bytes each. */
|
||
|
|
/* __attribute_malloc__ is not used, because if reallocarray returns
|
||
|
|
the same pointer that was passed to it, aliasing needs to be allowed
|
||
|
|
between objects pointed by the old and new pointers. */
|
||
|
|
extern void *reallocarray (void *__ptr, size_t __nmemb, size_t __size)
|
||
|
|
__THROW __attribute_warn_unused_result__
|
||
|
|
__attribute_alloc_size__ ((2, 3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Free a block allocated by `malloc', `realloc' or `calloc'. */
|
||
|
|
extern void free (void *__ptr) __THROW;
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
# include <alloca.h>
|
||
|
|
#endif /* Use misc. */
|
||
|
|
|
||
|
|
#if (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K) \
|
||
|
|
|| defined __USE_MISC
|
||
|
|
/* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */
|
||
|
|
extern void *valloc (size_t __size) __THROW __attribute_malloc__
|
||
|
|
__attribute_alloc_size__ ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN2K
|
||
|
|
/* Allocate memory of SIZE bytes with an alignment of ALIGNMENT. */
|
||
|
|
extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
|
||
|
|
__THROW __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC11
|
||
|
|
/* ISO C variant of aligned allocation. */
|
||
|
|
extern void *aligned_alloc (size_t __alignment, size_t __size)
|
||
|
|
__THROW __attribute_malloc__ __attribute_alloc_size__ ((2)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* 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 __nonnull ((1));
|
||
|
|
|
||
|
|
#if defined __USE_ISOC11 || defined __USE_ISOCXX11
|
||
|
|
/* Register a function to be called when `quick_exit' is called. */
|
||
|
|
# ifdef __cplusplus
|
||
|
|
extern "C++" int at_quick_exit (void (*__func) (void))
|
||
|
|
__THROW __asm ("at_quick_exit") __nonnull ((1));
|
||
|
|
# else
|
||
|
|
extern int at_quick_exit (void (*__func) (void)) __THROW __nonnull ((1));
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Register a function to be called with the status
|
||
|
|
given to `exit' and the given argument. */
|
||
|
|
extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* 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__));
|
||
|
|
|
||
|
|
#if defined __USE_ISOC11 || defined __USE_ISOCXX11
|
||
|
|
/* Call all functions registered with `at_quick_exit' in the reverse
|
||
|
|
of the order in which they were registered and terminate program
|
||
|
|
execution with STATUS. */
|
||
|
|
extern void quick_exit (int __status) __THROW __attribute__ ((__noreturn__));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
/* 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__));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Return the value of envariable NAME, or NULL if it doesn't exist. */
|
||
|
|
extern char *getenv (const char *__name) __THROW __nonnull ((1)) __wur;
|
||
|
|
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
/* This function is similar to the above but returns NULL if the
|
||
|
|
programs is running with SUID or SGID enabled. */
|
||
|
|
extern char *secure_getenv (const char *__name)
|
||
|
|
__THROW __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined __USE_MISC || defined __USE_XOPEN
|
||
|
|
/* The SVID says this is in <stdio.h>, but this seems a better place. */
|
||
|
|
/* Put STRING, which is of the form "NAME=VALUE", in the environment.
|
||
|
|
If there is no `=', remove NAME from the environment. */
|
||
|
|
extern int putenv (char *__string) __THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN2K
|
||
|
|
/* Set NAME to VALUE in the environment.
|
||
|
|
If REPLACE is nonzero, overwrite an existing value. */
|
||
|
|
extern int setenv (const char *__name, const char *__value, int __replace)
|
||
|
|
__THROW __nonnull ((2));
|
||
|
|
|
||
|
|
/* Remove the variable NAME from the environment. */
|
||
|
|
extern int unsetenv (const char *__name) __THROW __nonnull ((1));
|
||
|
|
#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
|
||
|
|
for Fortran 77) requires this function. */
|
||
|
|
extern int clearenv (void) __THROW;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if defined __USE_MISC \
|
||
|
|
|| (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8)
|
||
|
|
/* Generate a unique temporary file name from TEMPLATE.
|
||
|
|
The last six characters of TEMPLATE must be "XXXXXX";
|
||
|
|
they are replaced with a string that makes the file name unique.
|
||
|
|
Always returns TEMPLATE, it's either a temporary file name or a null
|
||
|
|
string if it cannot get a unique file name. */
|
||
|
|
extern char *mktemp (char *__template) __THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
|
||
|
|
/* Generate a unique temporary file name from TEMPLATE.
|
||
|
|
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.
|
||
|
|
|
||
|
|
This function is a possible cancellation point and therefore not
|
||
|
|
marked with __THROW. */
|
||
|
|
# ifndef __USE_FILE_OFFSET64
|
||
|
|
extern int mkstemp (char *__template) __nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# ifdef __REDIRECT
|
||
|
|
extern int __REDIRECT (mkstemp, (char *__template), mkstemp64)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# define mkstemp mkstemp64
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
# ifdef __USE_LARGEFILE64
|
||
|
|
extern int mkstemp64 (char *__template) __nonnull ((1)) __wur;
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Similar to mkstemp, but the template can have a suffix after the
|
||
|
|
XXXXXX. The length of the suffix is specified in the second
|
||
|
|
parameter.
|
||
|
|
|
||
|
|
This function is a possible cancellation point and therefore not
|
||
|
|
marked with __THROW. */
|
||
|
|
# ifndef __USE_FILE_OFFSET64
|
||
|
|
extern int mkstemps (char *__template, int __suffixlen) __nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# ifdef __REDIRECT
|
||
|
|
extern int __REDIRECT (mkstemps, (char *__template, int __suffixlen),
|
||
|
|
mkstemps64) __nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# define mkstemps mkstemps64
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
# ifdef __USE_LARGEFILE64
|
||
|
|
extern int mkstemps64 (char *__template, int __suffixlen)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN2K8
|
||
|
|
/* Create a unique temporary directory from TEMPLATE.
|
||
|
|
The last six characters of TEMPLATE must be "XXXXXX";
|
||
|
|
they are replaced with a string that makes the directory name unique.
|
||
|
|
Returns TEMPLATE, or a null pointer if it cannot get a unique name.
|
||
|
|
The directory is created mode 700. */
|
||
|
|
extern char *mkdtemp (char *__template) __THROW __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
/* Generate a unique temporary file name from TEMPLATE similar to
|
||
|
|
mkstemp. But allow the caller to pass additional flags which are
|
||
|
|
used in the open call to create the file..
|
||
|
|
|
||
|
|
This function is a possible cancellation point and therefore not
|
||
|
|
marked with __THROW. */
|
||
|
|
# ifndef __USE_FILE_OFFSET64
|
||
|
|
extern int mkostemp (char *__template, int __flags) __nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# ifdef __REDIRECT
|
||
|
|
extern int __REDIRECT (mkostemp, (char *__template, int __flags), mkostemp64)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# define mkostemp mkostemp64
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
# ifdef __USE_LARGEFILE64
|
||
|
|
extern int mkostemp64 (char *__template, int __flags) __nonnull ((1)) __wur;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Similar to mkostemp, but the template can have a suffix after the
|
||
|
|
XXXXXX. The length of the suffix is specified in the second
|
||
|
|
parameter.
|
||
|
|
|
||
|
|
This function is a possible cancellation point and therefore not
|
||
|
|
marked with __THROW. */
|
||
|
|
# ifndef __USE_FILE_OFFSET64
|
||
|
|
extern int mkostemps (char *__template, int __suffixlen, int __flags)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# ifdef __REDIRECT
|
||
|
|
extern int __REDIRECT (mkostemps, (char *__template, int __suffixlen,
|
||
|
|
int __flags), mkostemps64)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# else
|
||
|
|
# define mkostemps mkostemps64
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
# ifdef __USE_LARGEFILE64
|
||
|
|
extern int mkostemps64 (char *__template, int __suffixlen, int __flags)
|
||
|
|
__nonnull ((1)) __wur;
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* 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) __wur;
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
/* Return a malloc'd string containing the canonical absolute name of the
|
||
|
|
existing named file. */
|
||
|
|
extern char *canonicalize_file_name (const char *__name)
|
||
|
|
__THROW __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
|
||
|
|
/* Return the canonical absolute name of file NAME. If RESOLVED is
|
||
|
|
null, the result is malloc'd; otherwise, if the canonical name is
|
||
|
|
PATH_MAX chars or more, returns null with `errno' set to
|
||
|
|
ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars,
|
||
|
|
returns the name in RESOLVED. */
|
||
|
|
extern char *realpath (const char *__restrict __name,
|
||
|
|
char *__restrict __resolved) __THROW __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Shorthand for type of comparison functions. */
|
||
|
|
#ifndef __COMPAR_FN_T
|
||
|
|
# define __COMPAR_FN_T
|
||
|
|
typedef int (*__compar_fn_t) (const void *, const void *);
|
||
|
|
|
||
|
|
# ifdef __USE_GNU
|
||
|
|
typedef __compar_fn_t comparison_fn_t;
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
typedef int (*__compar_d_fn_t) (const void *, const void *, void *);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* 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,
|
||
|
|
size_t __nmemb, size_t __size, __compar_fn_t __compar)
|
||
|
|
__nonnull ((1, 2, 5)) __wur;
|
||
|
|
|
||
|
|
#ifdef __USE_EXTERN_INLINES
|
||
|
|
# include <bits/stdlib-bsearch.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Sort NMEMB elements of BASE, of SIZE bytes each,
|
||
|
|
using COMPAR to perform the comparisons. */
|
||
|
|
extern void qsort (void *__base, size_t __nmemb, size_t __size,
|
||
|
|
__compar_fn_t __compar) __nonnull ((1, 4));
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
extern void qsort_r (void *__base, size_t __nmemb, size_t __size,
|
||
|
|
__compar_d_fn_t __compar, void *__arg)
|
||
|
|
__nonnull ((1, 4));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Return the absolute value of X. */
|
||
|
|
extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
|
||
|
|
extern long int labs (long int __x) __THROW __attribute__ ((__const__)) __wur;
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
__extension__ extern long long int llabs (long long int __x)
|
||
|
|
__THROW __attribute__ ((__const__)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* 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. */
|
||
|
|
extern div_t div (int __numer, int __denom)
|
||
|
|
__THROW __attribute__ ((__const__)) __wur;
|
||
|
|
extern ldiv_t ldiv (long int __numer, long int __denom)
|
||
|
|
__THROW __attribute__ ((__const__)) __wur;
|
||
|
|
|
||
|
|
#ifdef __USE_ISOC99
|
||
|
|
__extension__ extern lldiv_t lldiv (long long int __numer,
|
||
|
|
long long int __denom)
|
||
|
|
__THROW __attribute__ ((__const__)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8) \
|
||
|
|
|| defined __USE_MISC
|
||
|
|
/* Convert floating point numbers to strings. The returned values are
|
||
|
|
valid only until another call to the same function. */
|
||
|
|
|
||
|
|
/* Convert VALUE to a string with NDIGIT digits and return a pointer to
|
||
|
|
this. Set *DECPT with the position of the decimal character and *SIGN
|
||
|
|
with the sign of the number. */
|
||
|
|
extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt,
|
||
|
|
int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur;
|
||
|
|
|
||
|
|
/* Convert VALUE to a string rounded to NDIGIT decimal digits. Set *DECPT
|
||
|
|
with the position of the decimal character and *SIGN with the sign of
|
||
|
|
the number. */
|
||
|
|
extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt,
|
||
|
|
int *__restrict __sign) __THROW __nonnull ((3, 4)) __wur;
|
||
|
|
|
||
|
|
/* If possible convert VALUE to a string with NDIGIT significant digits.
|
||
|
|
Otherwise use exponential representation. The resulting string will
|
||
|
|
be written to BUF. */
|
||
|
|
extern char *gcvt (double __value, int __ndigit, char *__buf)
|
||
|
|
__THROW __nonnull ((3)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Long double versions of above functions. */
|
||
|
|
extern char *qecvt (long double __value, int __ndigit,
|
||
|
|
int *__restrict __decpt, int *__restrict __sign)
|
||
|
|
__THROW __nonnull ((3, 4)) __wur;
|
||
|
|
extern char *qfcvt (long double __value, int __ndigit,
|
||
|
|
int *__restrict __decpt, int *__restrict __sign)
|
||
|
|
__THROW __nonnull ((3, 4)) __wur;
|
||
|
|
extern char *qgcvt (long double __value, int __ndigit, char *__buf)
|
||
|
|
__THROW __nonnull ((3)) __wur;
|
||
|
|
|
||
|
|
|
||
|
|
/* Reentrant version of the functions above which provide their own
|
||
|
|
buffers. */
|
||
|
|
extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt,
|
||
|
|
int *__restrict __sign, char *__restrict __buf,
|
||
|
|
size_t __len) __THROW __nonnull ((3, 4, 5));
|
||
|
|
extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt,
|
||
|
|
int *__restrict __sign, char *__restrict __buf,
|
||
|
|
size_t __len) __THROW __nonnull ((3, 4, 5));
|
||
|
|
|
||
|
|
extern int qecvt_r (long double __value, int __ndigit,
|
||
|
|
int *__restrict __decpt, int *__restrict __sign,
|
||
|
|
char *__restrict __buf, size_t __len)
|
||
|
|
__THROW __nonnull ((3, 4, 5));
|
||
|
|
extern int qfcvt_r (long double __value, int __ndigit,
|
||
|
|
int *__restrict __decpt, int *__restrict __sign,
|
||
|
|
char *__restrict __buf, size_t __len)
|
||
|
|
__THROW __nonnull ((3, 4, 5));
|
||
|
|
#endif /* misc */
|
||
|
|
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
/* Return the length of the given multibyte character,
|
||
|
|
putting its `wchar_t' representation in *PWC. */
|
||
|
|
extern int mbtowc (wchar_t *__restrict __pwc,
|
||
|
|
const char *__restrict __s, size_t __n) __THROW;
|
||
|
|
/* Put the multibyte character represented
|
||
|
|
by WCHAR in S, returning its length. */
|
||
|
|
extern int wctomb (char *__s, wchar_t __wchar) __THROW;
|
||
|
|
|
||
|
|
|
||
|
|
/* Convert a multibyte string to a wide char string. */
|
||
|
|
extern size_t mbstowcs (wchar_t *__restrict __pwcs,
|
||
|
|
const char *__restrict __s, size_t __n) __THROW
|
||
|
|
__attr_access ((__read_only__, 2));
|
||
|
|
/* Convert a wide char string to multibyte string. */
|
||
|
|
extern size_t wcstombs (char *__restrict __s,
|
||
|
|
const wchar_t *__restrict __pwcs, size_t __n)
|
||
|
|
__THROW
|
||
|
|
__attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Determine whether the string value of RESPONSE matches the affirmation
|
||
|
|
or negative response expression as specified by the LC_MESSAGES category
|
||
|
|
in the program's current locale. Returns 1 if affirmative, 0 if
|
||
|
|
negative, and -1 if not matching. */
|
||
|
|
extern int rpmatch (const char *__response) __THROW __nonnull ((1)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
|
||
|
|
/* Parse comma separated suboption from *OPTIONP and match against
|
||
|
|
strings in TOKENS. If found return index and set *VALUEP to
|
||
|
|
optional value introduced by an equal sign. If the suboption is
|
||
|
|
not part of TOKENS return in *VALUEP beginning of unknown
|
||
|
|
suboption. On exit *OPTIONP is set to the beginning of the next
|
||
|
|
token or at the terminating NUL character. */
|
||
|
|
extern int getsubopt (char **__restrict __optionp,
|
||
|
|
char *const *__restrict __tokens,
|
||
|
|
char **__restrict __valuep)
|
||
|
|
__THROW __nonnull ((1, 2, 3)) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* X/Open pseudo terminal handling. */
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN2KXSI
|
||
|
|
/* Return a master pseudo-terminal handle. */
|
||
|
|
extern int posix_openpt (int __oflag) __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN_EXTENDED
|
||
|
|
/* The next four functions all take a master pseudo-tty fd and
|
||
|
|
perform an operation on the associated slave: */
|
||
|
|
|
||
|
|
/* Chown the slave to the calling user. */
|
||
|
|
extern int grantpt (int __fd) __THROW;
|
||
|
|
|
||
|
|
/* Release an internal lock so the slave can be opened.
|
||
|
|
Call after grantpt(). */
|
||
|
|
extern int unlockpt (int __fd) __THROW;
|
||
|
|
|
||
|
|
/* Return the pathname of the pseudo terminal slave associated with
|
||
|
|
the master FD is open on, or NULL on errors.
|
||
|
|
The returned storage is good until the next call to this function. */
|
||
|
|
extern char *ptsname (int __fd) __THROW __wur;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_GNU
|
||
|
|
/* Store at most BUFLEN characters of the pathname of the slave pseudo
|
||
|
|
terminal associated with the master FD is open on in BUF.
|
||
|
|
Return 0 on success, otherwise an error number. */
|
||
|
|
extern int ptsname_r (int __fd, char *__buf, size_t __buflen)
|
||
|
|
__THROW __nonnull ((2)) __attr_access ((__write_only__, 2, 3));
|
||
|
|
|
||
|
|
/* Open a master pseudo terminal and return its file descriptor. */
|
||
|
|
extern int getpt (void);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __USE_MISC
|
||
|
|
/* Put the 1 minute, 5 minute and 15 minute load averages into the first
|
||
|
|
NELEM elements of LOADAVG. Return the number written (never more than
|
||
|
|
three, but may be less than NELEM), or -1 if an error occurred. */
|
||
|
|
extern int getloadavg (double __loadavg[], int __nelem)
|
||
|
|
__THROW __nonnull ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K
|
||
|
|
/* Return the index into the active-logins file (utmp) for
|
||
|
|
the controlling terminal. */
|
||
|
|
extern int ttyslot (void) __THROW;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <bits/stdlib-float.h>
|
||
|
|
|
||
|
|
/* Define some macros helping to catch buffer overflows. */
|
||
|
|
#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
|
||
|
|
# include <bits/stdlib.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <bits/floatn.h>
|
||
|
|
#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
|
||
|
|
# include <bits/stdlib-ldbl.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
__END_DECLS
|
||
|
|
|
||
|
|
#endif /* stdlib.h */
|