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- /* Copyright (C) 1991-2007, 2009 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
- <http://www.gnu.org/licenses/>. */
- /*
- * ISO C99 Standard: 7.20 General utilities <stdlib.h>
- */
- #ifndef _STDLIB_H
- #include <features.h>
- /* Get size_t, wchar_t and NULL from <stddef.h>. */
- #define __need_size_t
- #ifndef __need_malloc_and_calloc
- # ifdef __UCLIBC_HAS_WCHAR__
- # define __need_wchar_t
- # endif
- # define __need_NULL
- #endif
- #include <stddef.h>
- __BEGIN_DECLS
- #ifndef __need_malloc_and_calloc
- #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>
- # ifdef __USE_BSD
- /* Lots of hair to allow traditional BSD use of `union wait'
- as well as POSIX.1 use of `int' for the status word. */
- # if defined __GNUC__ && !defined __cplusplus
- # define __WAIT_INT(status) \
- (__extension__ (((union { __typeof(status) __in; int __i; }) \
- { .__in = (status) }).__i))
- # else
- # define __WAIT_INT(status) (*(int *) &(status))
- # endif
- /* This is the type of the argument to `wait'. The funky union
- causes redeclarations with either `int *' or `union wait *' to be
- allowed without complaint. __WAIT_STATUS_DEFN is the type used in
- the actual function definitions. */
- # if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus
- # define __WAIT_STATUS void *
- # define __WAIT_STATUS_DEFN void *
- # else
- /* This works in GCC 2.6.1 and later. */
- typedef union
- {
- union wait *__uptr;
- int *__iptr;
- } __WAIT_STATUS __attribute__ ((__transparent_union__));
- # define __WAIT_STATUS_DEFN int *
- # endif
- # else /* Don't use BSD. */
- # define __WAIT_INT(status) (status)
- # define __WAIT_STATUS int *
- # define __WAIT_STATUS_DEFN int *
- # endif /* Use BSD. */
- /* Define the macros <sys/wait.h> also would define this way. */
- # define WEXITSTATUS(status) __WEXITSTATUS (__WAIT_INT (status))
- # define WTERMSIG(status) __WTERMSIG (__WAIT_INT (status))
- # define WSTOPSIG(status) __WSTOPSIG (__WAIT_INT (status))
- # define WIFEXITED(status) __WIFEXITED (__WAIT_INT (status))
- # define WIFSIGNALED(status) __WIFSIGNALED (__WAIT_INT (status))
- # define WIFSTOPPED(status) __WIFSTOPPED (__WAIT_INT (status))
- # ifdef __WIFCONTINUED
- # define WIFCONTINUED(status) __WIFCONTINUED (__WAIT_INT (status))
- # endif
- #endif /* X/Open and <sys/wait.h> not included. */
- __BEGIN_NAMESPACE_STD
- /* 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
- __END_NAMESPACE_STD
- #if defined __USE_ISOC99 && !defined __lldiv_t_defined
- __BEGIN_NAMESPACE_C99
- /* Returned by `lldiv'. */
- __extension__ typedef struct
- {
- long long int quot; /* Quotient. */
- long long int rem; /* Remainder. */
- } lldiv_t;
- # define __lldiv_t_defined 1
- __END_NAMESPACE_C99
- #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. */
- #if 0
- #define MB_CUR_MAX (__ctype_get_mb_cur_max ())
- extern size_t __ctype_get_mb_cur_max (void) __THROW __wur;
- #else
- #ifdef __UCLIBC_HAS_WCHAR__
- # define MB_CUR_MAX (_stdlib_mb_cur_max ())
- extern size_t _stdlib_mb_cur_max (void) __THROW __wur;
- libc_hidden_proto(_stdlib_mb_cur_max)
- #else
- # define MB_CUR_MAX 1
- #endif
- #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__ __nonnull ((1)) __wur;
- #endif /* __UCLIBC_HAS_FLOATS__ */
- /* Convert a string to an integer. */
- extern int atoi (const char *__nptr)
- __THROW __attribute_pure__ __nonnull ((1)) __wur;
- libc_hidden_proto(atoi)
- /* Convert a string to a long integer. */
- extern long int atol (const char *__nptr)
- __THROW __attribute_pure__ __nonnull ((1)) __wur;
- __END_NAMESPACE_STD
- #if defined __USE_ISOC99 || 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__ __nonnull ((1)) __wur;
- __END_NAMESPACE_C99
- #endif
- #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 __nonnull ((1)) __wur;
- libc_hidden_proto(strtod)
- __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 __nonnull ((1)) __wur;
- extern long double strtold (const char *__restrict __nptr,
- char **__restrict __endptr)
- __THROW __nonnull ((1)) __wur;
- __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 __nonnull ((1)) __wur;
- libc_hidden_proto(strtol)
- /* 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)) __wur;
- libc_hidden_proto(strtoul)
- __END_NAMESPACE_STD
- #ifdef __USE_BSD
- #include <sys/types.h> /* for u_quad_t */
- /* Convert a string to a quadword integer. */
- __extension__
- extern quad_t strtoq (const char *__restrict __nptr,
- char **__restrict __endptr, int __base)
- __THROW __nonnull ((1)) __wur;
- /* Convert a string to an unsigned quadword integer. */
- __extension__
- extern u_quad_t strtouq (const char *__restrict __nptr,
- char **__restrict __endptr, int __base)
- __THROW __nonnull ((1)) __wur;
- #endif /* GCC and use BSD. */
- #if defined __USE_ISOC99 || defined __USE_MISC
- __BEGIN_NAMESPACE_C99
- /* 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)) __wur;
- libc_hidden_proto(strtoll)
- /* 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)) __wur;
- __END_NAMESPACE_C99
- #endif /* ISO C99 or GCC and use MISC. */
- #if defined __USE_GNU && defined __UCLIBC_HAS_XLOCALE__
- /* The concept of one static locale per category is not very well
- thought out. Many applications will need to process its data using
- information from several different locales. Another problem is
- the implementation of the internationalization handling in the
- ISO C++ standard library. To support this another set of
- the functions using locale data exist which take an additional
- argument.
- Attention: even though several *_l interfaces are part of POSIX:2008,
- these are not. */
- /* Structure for reentrant locale using functions. This is an
- (almost) opaque type for the user level programs. */
- # include <xlocale.h>
- /* 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 __nonnull ((1, 4)) __wur;
- libc_hidden_proto(strtol_l)
- extern unsigned long int strtoul_l (const char *__restrict __nptr,
- char **__restrict __endptr,
- int __base, __locale_t __loc)
- __THROW __nonnull ((1, 4)) __wur;
- libc_hidden_proto(strtoul_l)
- __extension__
- extern long long int strtoll_l (const char *__restrict __nptr,
- char **__restrict __endptr, int __base,
- __locale_t __loc)
- __THROW __nonnull ((1, 4)) __wur;
- __extension__
- extern unsigned long long int strtoull_l (const char *__restrict __nptr,
- char **__restrict __endptr,
- int __base, __locale_t __loc)
- __THROW __nonnull ((1, 4)) __wur;
- #ifdef __UCLIBC_HAS_FLOATS__
- extern double strtod_l (const char *__restrict __nptr,
- char **__restrict __endptr, __locale_t __loc)
- __THROW __nonnull ((1, 3)) __wur;
- extern float strtof_l (const char *__restrict __nptr,
- char **__restrict __endptr, __locale_t __loc)
- __THROW __nonnull ((1, 3)) __wur;
- extern long double strtold_l (const char *__restrict __nptr,
- char **__restrict __endptr,
- __locale_t __loc)
- __THROW __nonnull ((1, 3)) __wur;
- #endif /* __UCLIBC_HAS_FLOATS__ */
- #endif /* GNU */
- #if defined __USE_SVID || 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 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',
- `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 RAND_MAX inclusive. */
- extern long int random (void) __THROW;
- libc_hidden_proto(random)
- /* 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. */
- #if 0
- int rand_type; /* Type of random number generator. */
- int rand_deg; /* Degree of random number generator. */
- int rand_sep; /* Distance between front and rear. */
- #else
- /* random_r.c, TYPE_x, DEG_x, SEP_x - small enough for int8_t */
- int8_t rand_type; /* Type of random number generator. */
- int8_t rand_deg; /* Degree of random number generator. */
- int8_t rand_sep; /* Distance between front and rear. */
- #endif
- 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));
- libc_hidden_proto(random_r)
- extern int srandom_r (unsigned int __seed, struct random_data *__buf)
- __THROW __nonnull ((2));
- libc_hidden_proto(srandom_r)
- extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
- size_t __statelen,
- struct random_data *__restrict __buf)
- __THROW __nonnull ((2, 4));
- libc_hidden_proto(initstate_r)
- extern int setstate_r (char *__restrict __statebuf,
- struct random_data *__restrict __buf)
- __THROW __nonnull ((1, 2));
- libc_hidden_proto(setstate_r)
- # endif /* Use misc. */
- #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. */
- extern int rand_r (unsigned int *__seed) __THROW;
- #endif
- #if defined __USE_SVID || defined __USE_XOPEN
- /* System V style 48-bit random number generator functions. */
- #ifdef __UCLIBC_HAS_FLOATS__
- /* 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));
- #endif /* __UCLIBC_HAS_FLOATS__ */
- /* 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. */
- unsigned long long int __a; /* Factor in congruential formula. */
- };
- #ifdef __UCLIBC_HAS_FLOATS__
- /* 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));
- libc_hidden_proto(erand48_r)
- #endif /* __UCLIBC_HAS_FLOATS__ */
- /* 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));
- libc_hidden_proto(lrand48_r)
- extern int nrand48_r (unsigned short int __xsubi[3],
- struct drand48_data *__restrict __buffer,
- long int *__restrict __result)
- __THROW __nonnull ((1, 2));
- libc_hidden_proto(nrand48_r)
- /* 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));
- libc_hidden_proto(jrand48_r)
- /* Seed random number generator. */
- extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
- __THROW __nonnull ((2));
- libc_hidden_proto(srand48_r)
- extern int seed48_r (unsigned short int __seed16v[3],
- struct drand48_data *__buffer) __THROW __nonnull ((1, 2));
- libc_hidden_proto(seed48_r)
- extern int lcong48_r (unsigned short int __param[7],
- struct drand48_data *__buffer)
- __THROW __nonnull ((1, 2));
- # endif /* Use misc. */
- #endif /* Use SVID or X/Open. */
- #endif /* don't just need malloc and calloc */
- #ifndef __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__ __wur;
- /* We want the malloc symbol overridable at runtime, do not hide it! */
- /* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
- extern void *calloc (size_t __nmemb, size_t __size)
- __THROW __attribute_malloc__ __wur;
- /* We want the calloc symbol overridable at runtime, do not hide it! */
- __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. */
- /* __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 __wur;
- /* We want the realloc symbol overridable at runtime, do not hide it! */
- /* Free a block allocated by `malloc', `realloc' or `calloc'. */
- extern void free (void *__ptr) __THROW;
- /* We want the free symbol overridable at runtime, do not hide it! */
- __END_NAMESPACE_STD
- #if 0 /*def __USE_MISC*/
- /* Free a block. An alias for `free'. (Sun Unices). */
- extern void cfree (void *__ptr) __THROW;
- #endif /* Use misc. */
- #if defined __USE_GNU || defined __USE_BSD || defined __USE_MISC
- # include <alloca.h>
- #endif /* Use GNU, BSD, or misc. */
- #ifdef __UCLIBC_SUSV2_LEGACY__
- # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
- /* Allocate SIZE bytes on a page boundary. The storage cannot be freed. */
- extern void *valloc (size_t __size) __THROW __attribute_malloc__ __wur;
- # endif
- #endif
- #if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__
- /* 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
- __BEGIN_NAMESPACE_STD
- /* Abort execution and generate a core-dump. */
- extern void abort (void) __THROW __attribute__ ((__noreturn__));
- libc_hidden_proto(abort)
- /* Register a function to be called when `exit' is called. */
- extern int atexit (void (*__func) (void)) __THROW __nonnull ((1));
- __END_NAMESPACE_STD
- #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
- __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__));
- libc_hidden_proto(exit)
- __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 __nonnull ((1)) __wur;
- libc_hidden_proto(getenv)
- __END_NAMESPACE_STD
- /* 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;
- #if defined __USE_SVID || 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
- #if defined __USE_BSD || defined __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));
- libc_hidden_proto(setenv)
- /* Remove the variable NAME from the environment. */
- extern int unsetenv (const char *__name) __THROW;
- libc_hidden_proto(unsetenv)
- #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
- for Fortran 77) requires this function. */
- extern int clearenv (void) __THROW;
- #endif
- #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
- # if defined __UCLIBC_SUSV3_LEGACY__
- /* 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.
- Returns TEMPLATE, or a null pointer if it cannot get a unique file name. */
- extern char *mktemp (char *__template) __THROW __nonnull ((1)) __wur;
- # endif
- /* 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
- #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
- # if defined __UCLIBC_SUSV3_LEGACY__
- extern char *mktemps (char *__template, int __suffixlen) __THROW __nonnull ((1)) __wur;
- # endif
- /* The mkstemps() function is like mkstemp(), except that the string in
- template contains a suffix of suffixlen characters. Thus, template is
- of the form prefixXXXXXXsuffix, and the string XXXXXX is modified as
- for mkstemp().
- 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 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
- #if defined __USE_BSD || defined __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
- #endif
- #ifdef __USE_GNU
- /* Generate a unique temporary file name from TEMPLATE similar to
- mkostemp. But allow the caller to pass additional file name suffix.
- 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
- __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) __wur;
- __END_NAMESPACE_STD
- #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_BSD || 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;
- libc_hidden_proto(realpath)
- #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
- __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,
- size_t __nmemb, size_t __size, __compar_fn_t __compar)
- __nonnull ((1, 2, 5)) __wur;
- /* 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));
- libc_hidden_proto(qsort)
- #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));
- libc_hidden_proto(qsort_r)
- #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;
- __END_NAMESPACE_STD
- #ifdef __USE_ISOC99
- __extension__ extern long long int llabs (long long int __x)
- __THROW __attribute__ ((__const__)) __wur;
- #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. */
- 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;
- __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__)) __wur;
- __END_NAMESPACE_C99
- #endif
- #if ( defined __USE_SVID || defined __USE_XOPEN_EXTENDED ) && defined __UCLIBC_HAS_FLOATS__
- /* Convert floating point numbers to strings. The returned values are
- valid only until another call to the same function. */
- # ifdef __UCLIBC_SUSV3_LEGACY__
- #if 0
- /* 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;
- #endif
- /* 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 /* __UCLIBC_SUSV3_LEGACY__ */
- # if 0 /*def __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 */
- #endif /* use MISC || use X/Open Unix */
- #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 __wur;
- /* 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 __wur;
- /* Put the multibyte character represented
- by WCHAR in S, returning its length. */
- extern int wctomb (char *__s, wchar_t __wchar) __THROW __wur;
- /* 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;
- /* Convert a wide char string to multibyte string. */
- extern size_t wcstombs (char *__restrict __s,
- const wchar_t *__restrict __pwcs, size_t __n)
- __THROW;
- __END_NAMESPACE_STD
- #endif /* __UCLIBC_HAS_WCHAR__ */
- #ifdef __USE_SVID
- /* 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
- #ifdef __USE_XOPEN_EXTENDED
- /* 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
- #ifdef __USE_XOPEN
- # if defined __UCLIBC_HAS_CRYPT__
- /* Setup DES tables according KEY. */
- extern void setkey (const char *__key) __THROW __nonnull ((1));
- # endif /* __UCLIBC_HAS_CRYPT__ */
- #endif
- /* X/Open pseudo terminal handling. */
- #ifdef __USE_XOPEN2K
- /* Return a master pseudo-terminal handle. */
- extern int posix_openpt (int __oflag) __wur;
- #endif
- #ifdef __USE_XOPEN
- /* The next four functions all take a master pseudo-tty fd and
- perform an operation on the associated slave: */
- #ifdef __UCLIBC_HAS_PTY__
- /* 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 assoicated 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 /* __UCLIBC_HAS_PTY__ */
- #endif
- #ifdef __USE_GNU
- # if defined __UCLIBC_HAS_PTY__
- /* 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));
- libc_hidden_proto(ptsname_r)
- # endif
- # if defined __UCLIBC_HAS_GETPT__
- /* Open a master pseudo terminal and return its file descriptor. */
- extern int getpt (void);
- # endif
- #endif
- #ifdef __USE_BSD
- /* 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));
- extern void *reallocarray (void *__ptr, size_t __m, size_t __n);
- #endif
- #ifdef _LIBC
- extern int __drand48_iterate (unsigned short int xsubi[3], struct drand48_data *buffer) attribute_hidden;
- /* Global state for non-reentrant functions. */
- extern struct drand48_data __libc_drand48_data attribute_hidden;
- #endif
- #endif /* don't just need malloc and calloc */
- #undef __need_malloc_and_calloc
- __END_DECLS
- #endif /* stdlib.h */
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