C stdlib.h library functions | C Function

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C stdlib.h library functions:

All C inbuilt functions which are declared in stdlib.h header file are given below. The source code for stdlib.h header file is also given below for your reference.

List of inbuilt C functions in stdlib.h file:

Function	Description
malloc()	This function is used to allocate space in memory during the execution of the program.
calloc()	This function is also like malloc () function. But calloc () initializes the allocated memory to zero. But, malloc() doesn’t
realloc()	This function modifies the allocated memory size by malloc () and calloc () functions to new size
free()	This function frees the allocated memory by malloc (), calloc (), realloc () functions and returns the memory to the system.
abs()	This function returns the absolute value of an integer . The absolute value of a number is always positive. Only integer values are supported in C.
div()	This function performs division operation
abort()	It terminates the C program
exit()	This function terminates the program and does not return any value
system()	This function is used to execute commands outside the C program.
atoi()	Converts string to int
atol()	Converts string to long
atof()	Converts string to float
strtod()	Converts string to double
strtol()	Converts string to long
getenv()	This function gets the current value of the environment variable
setenv()	This function sets the value for environment variable
putenv()	This function modifies the value for environment variable
perror()	This function displays most recent error that happened during library function call.
rand()	This function returns the random integer numbers
delay()	This function Suspends the execution of the program for particular time

Source code for stdlib.h header file:

Please find the source code for stdlib.h header file below. This code is taken from DevC++ compiler files for your reference.

/*
 * stdlib.h
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is a part of the mingw-runtime package.
 * No warranty is given; refer to the file DISCLAIMER within the package.
 *
 * Definitions for common types, variables, and functions.
 *
 */

#ifndef _STDLIB_H_
#define _STDLIB_H_

/* All the headers include this file. */
#include <_mingw.h>

#define __need_size_t
#define __need_wchar_t
#define __need_NULL
#ifndef RC_INVOKED
#include <stddef.h>
#endif /* RC_INVOKED */

/*
 * RAND_MAX is the maximum value that may be returned by rand.
 * The minimum is zero.
 */
#define	RAND_MAX	0x7FFF

/*
 * These values may be used as exit status codes.
 */
#define	EXIT_SUCCESS	0
#define	EXIT_FAILURE	1

/*
 * Definitions for path name functions.
 * NOTE: All of these values have simply been chosen to be conservatively high.
 *       Remember that with long file names we can no longer depend on
 *       extensions being short.
 */
#ifndef __STRICT_ANSI__

#ifndef MAX_PATH
#define	MAX_PATH	(260)
#endif

#define	_MAX_PATH	MAX_PATH
#define	_MAX_DRIVE	(3)
#define	_MAX_DIR	256
#define	_MAX_FNAME	256
#define	_MAX_EXT	256

#endif	/* Not __STRICT_ANSI__ */

#ifndef RC_INVOKED

#ifdef __cplusplus
extern "C" {
#endif

#if !defined (__STRICT_ANSI__)

/*
 * This seems like a convenient place to declare these variables, which
 * give programs using WinMain (or main for that matter) access to main-ish
 * argc and argv. environ is a pointer to a table of environment variables.
 * NOTE: Strings in _argv and environ are ANSI strings.
 */
extern int	_argc;
extern char**	_argv;

/* imports from runtime dll of the above variables */
#ifdef __MSVCRT__

extern int*  __cdecl   __p___argc(void);
extern char*** __cdecl  __p___argv(void);
extern wchar_t***  __cdecl __p___wargv(void);

#define __argc (*__p___argc())
#define __argv (*__p___argv())
#define __wargv (*__p___wargv())

#else /* !MSVCRT */

#ifndef __DECLSPEC_SUPPORTED

extern int*    _imp____argc_dll;
extern char***  _imp____argv_dll;
#define __argc (*_imp____argc_dll)
#define __argv (*_imp____argv_dll)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT int    __argc_dll;
__MINGW_IMPORT char**  __argv_dll;
#define __argc __argc_dll
#define __argv __argv_dll

#endif /* __DECLSPEC_SUPPORTED */

#endif /* __MSVCRT */
#endif /* __STRICT_ANSI__ */
/*
 * Also defined in ctype.h.
 */
#ifndef MB_CUR_MAX
#ifdef __DECLSPEC_SUPPORTED
# ifdef __MSVCRT__
#  define MB_CUR_MAX __mb_cur_max
   __MINGW_IMPORT int __mb_cur_max;
# else		/* not __MSVCRT */
#  define MB_CUR_MAX __mb_cur_max_dll
   __MINGW_IMPORT int __mb_cur_max_dll;
# endif		/* not __MSVCRT */

#else		/* ! __DECLSPEC_SUPPORTED */
# ifdef __MSVCRT__
   extern int* _imp____mbcur_max;
#  define MB_CUR_MAX (*_imp____mb_cur_max)
# else		/* not __MSVCRT */
   extern int*  _imp____mbcur_max_dll;
#  define MB_CUR_MAX (*_imp____mb_cur_max_dll)
# endif 	/* not __MSVCRT */
#endif  	/*  __DECLSPEC_SUPPORTED */
#endif  /* MB_CUR_MAX */

/* 
 * MS likes to declare errno in stdlib.h as well. 
 */

#ifdef _UWIN
#undef errno
extern int errno;
#else
 _CRTIMP int* __cdecl	_errno(void);
#define	errno		(*_errno())
#endif
 _CRTIMP int* __cdecl	__doserrno(void);
#define	_doserrno	(*__doserrno())

#if !defined (__STRICT_ANSI__)
/*
 * Use environ from the DLL, not as a global. 
 */

#ifdef __MSVCRT__
  extern _CRTIMP char *** __cdecl __p__environ(void);
  extern _CRTIMP wchar_t *** __cdecl  __p__wenviron(void);
# define _environ (*__p__environ())
# define _wenviron (*__p__wenviron())
#else /* ! __MSVCRT__ */
# ifndef __DECLSPEC_SUPPORTED
    extern char *** _imp___environ_dll;
#   define _environ (*_imp___environ_dll)
# else /* __DECLSPEC_SUPPORTED */
    __MINGW_IMPORT char ** _environ_dll;
#   define _environ _environ_dll
# endif /* __DECLSPEC_SUPPORTED */
#endif /* ! __MSVCRT__ */

#define environ _environ

#ifdef	__MSVCRT__
/* One of the MSVCRTxx libraries */

#ifndef __DECLSPEC_SUPPORTED
  extern int*	_imp___sys_nerr;
# define	sys_nerr	(*_imp___sys_nerr)
#else /* __DECLSPEC_SUPPORTED */
  __MINGW_IMPORT int	_sys_nerr;
# ifndef _UWIN
#   define	sys_nerr	_sys_nerr
# endif /* _UWIN */
#endif /* __DECLSPEC_SUPPORTED */

#else /* ! __MSVCRT__ */

/* CRTDLL run time library */

#ifndef __DECLSPEC_SUPPORTED
  extern int*	_imp___sys_nerr_dll;
# define sys_nerr	(*_imp___sys_nerr_dll)
#else /* __DECLSPEC_SUPPORTED */
  __MINGW_IMPORT int	_sys_nerr_dll;
# define sys_nerr	_sys_nerr_dll
#endif /* __DECLSPEC_SUPPORTED */

#endif /* ! __MSVCRT__ */

#ifndef __DECLSPEC_SUPPORTED
extern char***	_imp__sys_errlist;
#define	sys_errlist	(*_imp___sys_errlist)
#else /* __DECLSPEC_SUPPORTED */
__MINGW_IMPORT char*	_sys_errlist[];
#ifndef _UWIN
#define	sys_errlist	_sys_errlist
#endif /* _UWIN */
#endif /* __DECLSPEC_SUPPORTED */

/*
 * OS version and such constants.
 */

#ifdef	__MSVCRT__
/* msvcrtxx.dll */

extern _CRTIMP unsigned __cdecl int*	__p__osver(void);
extern _CRTIMP unsigned __cdecl int*	__p__winver(void);
extern _CRTIMP unsigned __cdecl int*	__p__winmajor(void);
extern _CRTIMP unsigned __cdecl int*	__p__winminor(void);

#ifndef __DECLSPEC_SUPPORTED
# define _osver		(*__p__osver())
# define _winver	(*__p__winver())
# define _winmajor	(*__p__winmajor())
# define _winminor	(*__p__winminor())
#else
__MINGW_IMPORT unsigned int _osver;
__MINGW_IMPORT unsigned int _winver;
__MINGW_IMPORT unsigned int _winmajor;
__MINGW_IMPORT unsigned int _winminor;
#endif /* __DECLSPEC_SUPPORTED */

#else
/* Not msvcrtxx.dll, thus crtdll.dll */

#ifndef __DECLSPEC_SUPPORTED

extern unsigned int*	_imp___osver_dll;
extern unsigned int*	_imp___winver_dll;
extern unsigned int*	_imp___winmajor_dll;
extern unsigned int*	_imp___winminor_dll;

#define _osver		(*_imp___osver_dll)
#define _winver		(*_imp___winver_dll)
#define _winmajor	(*_imp___winmajor_dll)
#define _winminor	(*_imp___winminor_dll)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT unsigned int	_osver_dll;
__MINGW_IMPORT unsigned int	_winver_dll;
__MINGW_IMPORT unsigned int	_winmajor_dll;
__MINGW_IMPORT unsigned int	_winminor_dll;

#define _osver		_osver_dll
#define _winver		_winver_dll
#define _winmajor	_winmajor_dll
#define _winminor	_winminor_dll

#endif /* __DECLSPEC_SUPPORTED */

#endif

#if defined  __MSVCRT__
/* although the _pgmptr is exported as DATA,
 * be safe and use the access function __p__pgmptr() to get it. */
_CRTIMP char** __cdecl __p__pgmptr(void);
#define _pgmptr     (*__p__pgmptr())
_CRTIMP wchar_t** __cdecl __p__wpgmptr(void);
#define _wpgmptr    (*__p__wpgmptr())
#else /* ! __MSVCRT__ */
# ifndef __DECLSPEC_SUPPORTED
  extern char** __imp__pgmptr_dll;
# define _pgmptr (*_imp___pgmptr_dll)
# else /* __DECLSPEC_SUPPORTED */
 __MINGW_IMPORT char* _pgmptr_dll;
# define _pgmptr _pgmptr_dll
# endif /* __DECLSPEC_SUPPORTED */
/* no wide version in CRTDLL */
#endif /* __MSVCRT__ */

/*
 * This variable determines the default file mode.
 * TODO: Which flags work?
 */
#if !defined (__DECLSPEC_SUPPORTED) || defined (__IN_MINGW_RUNTIME)

#ifdef __MSVCRT__
extern int* _imp___fmode;
#define	_fmode	(*_imp___fmode)
#else
/* CRTDLL */
extern int* _imp___fmode_dll;
#define	_fmode	(*_imp___fmode_dll)
#endif

#else /* __DECLSPEC_SUPPORTED */

#ifdef __MSVCRT__
__MINGW_IMPORT  int _fmode;
#else /* ! __MSVCRT__ */
__MINGW_IMPORT  int _fmode_dll;
#define	_fmode	_fmode_dll
#endif /* ! __MSVCRT__ */

#endif /* __DECLSPEC_SUPPORTED */

#endif /* Not __STRICT_ANSI__ */

_CRTIMP double __cdecl	atof	(const char*);
_CRTIMP int __cdecl	atoi	(const char*);
_CRTIMP long __cdecl 	atol	(const char*);
#if !defined (__STRICT_ANSI__)
_CRTIMP int __cdecl	_wtoi (const wchar_t *);
_CRTIMP long __cdecl _wtol (const wchar_t *);
#endif
_CRTIMP double __cdecl	strtod	(const char*, char**);
#if !defined __NO_ISOCEXT  /* extern stub in static libmingwex.a */
__CRT_INLINE float __cdecl strtof (const char *nptr, char **endptr)
  { return (strtod (nptr, endptr));}
long double __cdecl strtold (const char * __restrict__, char ** __restrict__);
#endif /* __NO_ISOCEXT */

_CRTIMP long __cdecl	strtol	(const char*, char**, int);
_CRTIMP unsigned long __cdecl	strtoul	(const char*, char**, int);

#ifndef _WSTDLIB_DEFINED
/*  also declared in wchar.h */
_CRTIMP double __cdecl	wcstod	(const wchar_t*, wchar_t**);
#if !defined __NO_ISOCEXT /* extern stub in static libmingwex.a */
__CRT_INLINE float __cdecl wcstof( const wchar_t *nptr, wchar_t **endptr)
{  return (wcstod(nptr, endptr)); }
long double __cdecl wcstold (const wchar_t * __restrict__, wchar_t ** __restrict__);
#endif /* __NO_ISOCEXT */

_CRTIMP long __cdecl	wcstol	(const wchar_t*, wchar_t**, int);
_CRTIMP unsigned long __cdecl	wcstoul (const wchar_t*, wchar_t**, int);
#define _WSTDLIB_DEFINED
#endif

_CRTIMP size_t __cdecl	wcstombs	(char*, const wchar_t*, size_t);
_CRTIMP int __cdecl	wctomb		(char*, wchar_t);

_CRTIMP int __cdecl	mblen		(const char*, size_t);
_CRTIMP size_t __cdecl	mbstowcs	(wchar_t*, const char*, size_t);
_CRTIMP int __cdecl	mbtowc		(wchar_t*, const char*, size_t);

_CRTIMP int __cdecl	rand	(void);
_CRTIMP void __cdecl	srand	(unsigned int);

_CRTIMP void* __cdecl	calloc	(size_t, size_t) __MINGW_ATTRIB_MALLOC;
_CRTIMP void* __cdecl	malloc	(size_t) __MINGW_ATTRIB_MALLOC;
_CRTIMP void* __cdecl	realloc	(void*, size_t);
_CRTIMP void __cdecl	free	(void*);

_CRTIMP void __cdecl	abort	(void) __MINGW_ATTRIB_NORETURN;
_CRTIMP void __cdecl	exit	(int) __MINGW_ATTRIB_NORETURN;

/* Note: This is in startup code, not imported directly from dll */
int __cdecl	atexit	(void (*)(void));

_CRTIMP int __cdecl	system	(const char*);
_CRTIMP char* __cdecl	getenv	(const char*);

/* bsearch and qsort are also in non-ANSI header search.h  */
_CRTIMP void* __cdecl	bsearch	(const void*, const void*, size_t, size_t, 
				 int (*)(const void*, const void*));
_CRTIMP void __cdecl	qsort	(void*, size_t, size_t,
				 int (*)(const void*, const void*));

_CRTIMP int __cdecl	abs	(int) __MINGW_ATTRIB_CONST;
_CRTIMP long __cdecl	labs	(long) __MINGW_ATTRIB_CONST;

/*
 * div_t and ldiv_t are structures used to return the results of div and
 * ldiv.
 *
 * NOTE: div and ldiv appear not to work correctly unless
 *       -fno-pcc-struct-return is specified. This is included in the
 *       mingw32 specs file.
 */
typedef struct { int quot, rem; } div_t;
typedef struct { long quot, rem; } ldiv_t;

_CRTIMP div_t __cdecl	div	(int, int) __MINGW_ATTRIB_CONST;
_CRTIMP ldiv_t __cdecl	ldiv	(long, long) __MINGW_ATTRIB_CONST;

#if !defined (__STRICT_ANSI__)

/*
 * NOTE: Officially the three following functions are obsolete. The Win32 API
 *       functions SetErrorMode, Beep and Sleep are their replacements.
 */
_CRTIMP void __cdecl	_beep (unsigned int, unsigned int);
_CRTIMP void __cdecl	_seterrormode (int);
_CRTIMP void __cdecl	_sleep (unsigned long);

_CRTIMP void __cdecl	_exit	(int) __MINGW_ATTRIB_NORETURN;

/* _onexit is MS extension. Use atexit for portability.  */
/* Note: This is in startup code, not imported directly from dll */
typedef  int (* _onexit_t)(void);
_onexit_t __cdecl _onexit( _onexit_t );

_CRTIMP int __cdecl	_putenv	(const char*);
_CRTIMP void __cdecl	_searchenv (const char*, const char*, char*);

_CRTIMP char* __cdecl	_ecvt (double, int, int*, int*);
_CRTIMP char* __cdecl	_fcvt (double, int, int*, int*);
_CRTIMP char* __cdecl	_gcvt (double, int, char*);

_CRTIMP void __cdecl	_makepath (char*, const char*, const char*, const char*, const char*);
_CRTIMP void __cdecl	_splitpath (const char*, char*, char*, char*, char*);
_CRTIMP char* __cdecl	_fullpath (char*, const char*, size_t);

_CRTIMP char* __cdecl	_itoa (int, char*, int);
_CRTIMP char* __cdecl	_ltoa (long, char*, int);
_CRTIMP char* __cdecl   _ultoa(unsigned long, char*, int);
_CRTIMP wchar_t* __cdecl  _itow (int, wchar_t*, int);
_CRTIMP wchar_t* __cdecl  _ltow (long, wchar_t*, int);
_CRTIMP wchar_t* __cdecl  _ultow (unsigned long, wchar_t*, int);

#ifdef __MSVCRT__
_CRTIMP __int64 __cdecl	_atoi64(const char *);
_CRTIMP char* __cdecl	_i64toa(__int64, char *, int);
_CRTIMP char* __cdecl	_ui64toa(unsigned __int64, char *, int);
_CRTIMP __int64 __cdecl	_wtoi64(const wchar_t *);
_CRTIMP wchar_t* __cdecl _i64tow(__int64, wchar_t *, int);
_CRTIMP wchar_t* __cdecl _ui64tow(unsigned __int64, wchar_t *, int);

_CRTIMP wchar_t* __cdecl _wgetenv(const wchar_t*);
_CRTIMP int __cdecl	 _wputenv(const wchar_t*);
_CRTIMP void __cdecl	_wsearchenv(const wchar_t*, const wchar_t*, wchar_t*);
_CRTIMP void __cdecl    _wmakepath(wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*);
_CRTIMP void __cdecl	_wsplitpath (const wchar_t*, wchar_t*, wchar_t*, wchar_t*, wchar_t*);
_CRTIMP wchar_t* __cdecl    _wfullpath (wchar_t*, const wchar_t*, size_t);

_CRTIMP unsigned int __cdecl _rotl(unsigned int, int) __MINGW_ATTRIB_CONST;
_CRTIMP unsigned int __cdecl _rotr(unsigned int, int) __MINGW_ATTRIB_CONST;
_CRTIMP unsigned long __cdecl _lrotl(unsigned long, int) __MINGW_ATTRIB_CONST;
_CRTIMP unsigned long __cdecl _lrotr(unsigned long, int) __MINGW_ATTRIB_CONST;
#endif

#ifndef	_NO_OLDNAMES

_CRTIMP int __cdecl	putenv (const char*);
_CRTIMP void __cdecl	searchenv (const char*, const char*, char*);

_CRTIMP char* __cdecl	itoa (int, char*, int);
_CRTIMP char* __cdecl	ltoa (long, char*, int);

#ifndef _UWIN
_CRTIMP char* __cdecl	ecvt (double, int, int*, int*);
_CRTIMP char* __cdecl	fcvt (double, int, int*, int*);
_CRTIMP char* __cdecl	gcvt (double, int, char*);
#endif /* _UWIN */
#endif	/* Not _NO_OLDNAMES */

#endif	/* Not __STRICT_ANSI__ */

/* C99 names */

#if !defined __NO_ISOCEXT /* externs in static libmingwex.a */

/* C99 name for _exit */
void __cdecl _Exit(int) __MINGW_ATTRIB_NORETURN;
#ifndef __STRICT_ANSI__   /* inline using non-ansi functions */
__CRT_INLINE void __cdecl _Exit(int status)
	{  _exit(status); }
#endif 

typedef struct { long long quot, rem; } lldiv_t;

lldiv_t	__cdecl lldiv (long long, long long) __MINGW_ATTRIB_CONST;

__CRT_INLINE long long __cdecl llabs(long long _j)
  {return (_j >= 0 ? _j : -_j);}

long long  __cdecl strtoll (const char* __restrict__, char** __restrict, int);
unsigned long long  __cdecl strtoull (const char* __restrict__, char** __restrict__, int);

#if defined (__MSVCRT__) /* these are stubs for MS _i64 versions */ 
long long  __cdecl atoll (const char *);

#if !defined (__STRICT_ANSI__)
long long  __cdecl wtoll (const wchar_t *);
char* __cdecl lltoa (long long, char *, int);
char* __cdecl ulltoa (unsigned long long , char *, int);
wchar_t* __cdecl lltow (long long, wchar_t *, int);
wchar_t* __cdecl ulltow (unsigned long long, wchar_t *, int);

  /* inline using non-ansi functions */
__CRT_INLINE long long  __cdecl atoll (const char * _c)
	{ return _atoi64 (_c); }
__CRT_INLINE char*  __cdecl lltoa (long long _n, char * _c, int _i)
	{ return _i64toa (_n, _c, _i); }
__CRT_INLINE char*  __cdecl ulltoa (unsigned long long _n, char * _c, int _i)
	{ return _ui64toa (_n, _c, _i); }
__CRT_INLINE long long  __cdecl wtoll (const wchar_t * _w)
 	{ return _wtoi64 (_w); }
__CRT_INLINE wchar_t*  __cdecl lltow (long long _n, wchar_t * _w, int _i)
	{ return _i64tow (_n, _w, _i); } 
__CRT_INLINE wchar_t*  __cdecl ulltow (unsigned long long _n, wchar_t * _w, int _i)
	{ return _ui64tow (_n, _w, _i); } 
#endif /* (__STRICT_ANSI__)  */

#endif /* __MSVCRT__ */

#endif /* !__NO_ISOCEXT */

#ifdef __cplusplus
}
#endif

#endif	/* Not RC_INVOKED */

#endif	/* Not _STDLIB_H_ */

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* stdlib.h

* This file has no copyright assigned and is placed in the Public Domain.

* This file is a part of the mingw-runtime package.

* No warranty is given; refer to the file DISCLAIMER within the package.

* Definitions for common types, variables, and functions.

#ifndef _STDLIB_H_

#define _STDLIB_H_

/* All the headers include this file. */

#include <_mingw.h>

#define __need_size_t

#define __need_wchar_t

#define __need_NULL

#ifndef RC_INVOKED

#include <stddef.h>

#endif /* RC_INVOKED */

* RAND_MAX is the maximum value that may be returned by rand.

* The minimum is zero.

#define RAND_MAX 0x7FFF

* These values may be used as exit status codes.

#define EXIT_SUCCESS 0

#define EXIT_FAILURE 1

* Definitions for path name functions.

* NOTE: All of these values have simply been chosen to be conservatively high.

* Remember that with long file names we can no longer depend on

* extensions being short.

#ifndef __STRICT_ANSI__

#ifndef MAX_PATH

#define MAX_PATH (260)

#endif

#define _MAX_PATH MAX_PATH

#define _MAX_DRIVE (3)

#define _MAX_DIR 256

#define _MAX_FNAME 256

#define _MAX_EXT 256

#endif /* Not __STRICT_ANSI__ */

#ifndef RC_INVOKED

#ifdef __cplusplus

extern "C" {

#endif

#if !defined (__STRICT_ANSI__)

* This seems like a convenient place to declare these variables, which

* give programs using WinMain (or main for that matter) access to main-ish

* argc and argv. environ is a pointer to a table of environment variables.

* NOTE: Strings in _argv and environ are ANSI strings.

extern int _argc;

extern char** _argv;

/* imports from runtime dll of the above variables */

#ifdef __MSVCRT__

extern int* __cdecl __p___argc(void);

extern char*** __cdecl __p___argv(void);

extern wchar_t*** __cdecl __p___wargv(void);

#define __argc (*__p___argc())

#define __argv (*__p___argv())

#define __wargv (*__p___wargv())

#else /* !MSVCRT */

#ifndef __DECLSPEC_SUPPORTED

extern int* _imp____argc_dll;

extern char*** _imp____argv_dll;

#define __argc (*_imp____argc_dll)

#define __argv (*_imp____argv_dll)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT int __argc_dll;

__MINGW_IMPORT char** __argv_dll;

#define __argc __argc_dll

#define __argv __argv_dll

#endif /* __DECLSPEC_SUPPORTED */

#endif /* __MSVCRT */

#endif /* __STRICT_ANSI__ */

* Also defined in ctype.h.

#ifndef MB_CUR_MAX

#ifdef __DECLSPEC_SUPPORTED

# ifdef __MSVCRT__

# define MB_CUR_MAX __mb_cur_max

__MINGW_IMPORT int __mb_cur_max;

# else /* not __MSVCRT */

# define MB_CUR_MAX __mb_cur_max_dll

__MINGW_IMPORT int __mb_cur_max_dll;

# endif /* not __MSVCRT */

#else /* ! __DECLSPEC_SUPPORTED */

# ifdef __MSVCRT__

extern int* _imp____mbcur_max;

# define MB_CUR_MAX (*_imp____mb_cur_max)

# else /* not __MSVCRT */

extern int* _imp____mbcur_max_dll;

# define MB_CUR_MAX (*_imp____mb_cur_max_dll)

# endif /* not __MSVCRT */

#endif /* __DECLSPEC_SUPPORTED */

#endif /* MB_CUR_MAX */

* MS likes to declare errno in stdlib.h as well.

#ifdef _UWIN

#undef errno

extern int errno;

#else

_CRTIMP int* __cdecl _errno(void);

#define errno (*_errno())

#endif

_CRTIMP int* __cdecl __doserrno(void);

#define _doserrno (*__doserrno())

#if !defined (__STRICT_ANSI__)

* Use environ from the DLL, not as a global.

#ifdef __MSVCRT__

extern _CRTIMP char *** __cdecl __p__environ(void);

extern _CRTIMP wchar_t *** __cdecl __p__wenviron(void);

# define _environ (*__p__environ())

# define _wenviron (*__p__wenviron())

#else /* ! __MSVCRT__ */

# ifndef __DECLSPEC_SUPPORTED

extern char *** _imp___environ_dll;

# define _environ (*_imp___environ_dll)

# else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT char ** _environ_dll;

# define _environ _environ_dll

# endif /* __DECLSPEC_SUPPORTED */

#endif /* ! __MSVCRT__ */

#define environ _environ

#ifdef __MSVCRT__

/* One of the MSVCRTxx libraries */

#ifndef __DECLSPEC_SUPPORTED

extern int* _imp___sys_nerr;

# define sys_nerr (*_imp___sys_nerr)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT int _sys_nerr;

# ifndef _UWIN

# define sys_nerr _sys_nerr

# endif /* _UWIN */

#endif /* __DECLSPEC_SUPPORTED */

#else /* ! __MSVCRT__ */

/* CRTDLL run time library */

#ifndef __DECLSPEC_SUPPORTED

extern int* _imp___sys_nerr_dll;

# define sys_nerr (*_imp___sys_nerr_dll)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT int _sys_nerr_dll;

# define sys_nerr _sys_nerr_dll

#endif /* __DECLSPEC_SUPPORTED */

#endif /* ! __MSVCRT__ */

#ifndef __DECLSPEC_SUPPORTED

extern char*** _imp__sys_errlist;

#define sys_errlist (*_imp___sys_errlist)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT char* _sys_errlist[];

#ifndef _UWIN

#define sys_errlist _sys_errlist

#endif /* _UWIN */

#endif /* __DECLSPEC_SUPPORTED */

* OS version and such constants.

#ifdef __MSVCRT__

/* msvcrtxx.dll */

extern _CRTIMP unsigned __cdecl int* __p__osver(void);

extern _CRTIMP unsigned __cdecl int* __p__winver(void);

extern _CRTIMP unsigned __cdecl int* __p__winmajor(void);

extern _CRTIMP unsigned __cdecl int* __p__winminor(void);

#ifndef __DECLSPEC_SUPPORTED

# define _osver (*__p__osver())

# define _winver (*__p__winver())

# define _winmajor (*__p__winmajor())

# define _winminor (*__p__winminor())

#else

__MINGW_IMPORT unsigned int _osver;

__MINGW_IMPORT unsigned int _winver;

__MINGW_IMPORT unsigned int _winmajor;

__MINGW_IMPORT unsigned int _winminor;

#endif /* __DECLSPEC_SUPPORTED */

#else

/* Not msvcrtxx.dll, thus crtdll.dll */

#ifndef __DECLSPEC_SUPPORTED

extern unsigned int* _imp___osver_dll;

extern unsigned int* _imp___winver_dll;

extern unsigned int* _imp___winmajor_dll;

extern unsigned int* _imp___winminor_dll;

#define _osver (*_imp___osver_dll)

#define _winver (*_imp___winver_dll)

#define _winmajor (*_imp___winmajor_dll)

#define _winminor (*_imp___winminor_dll)

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT unsigned int _osver_dll;

__MINGW_IMPORT unsigned int _winver_dll;

__MINGW_IMPORT unsigned int _winmajor_dll;

__MINGW_IMPORT unsigned int _winminor_dll;

#define _osver _osver_dll

#define _winver _winver_dll

#define _winmajor _winmajor_dll

#define _winminor _winminor_dll

#endif /* __DECLSPEC_SUPPORTED */

#endif

#if defined __MSVCRT__

/* although the _pgmptr is exported as DATA,

* be safe and use the access function __p__pgmptr() to get it. */

_CRTIMP char** __cdecl __p__pgmptr(void);

#define _pgmptr (*__p__pgmptr())

_CRTIMP wchar_t** __cdecl __p__wpgmptr(void);

#define _wpgmptr (*__p__wpgmptr())

#else /* ! __MSVCRT__ */

# ifndef __DECLSPEC_SUPPORTED

extern char** __imp__pgmptr_dll;

# define _pgmptr (*_imp___pgmptr_dll)

# else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT char* _pgmptr_dll;

# define _pgmptr _pgmptr_dll

# endif /* __DECLSPEC_SUPPORTED */

/* no wide version in CRTDLL */

#endif /* __MSVCRT__ */

* This variable determines the default file mode.

* TODO: Which flags work?

#if !defined (__DECLSPEC_SUPPORTED) || defined (__IN_MINGW_RUNTIME)

#ifdef __MSVCRT__

extern int* _imp___fmode;

#define _fmode (*_imp___fmode)

#else

/* CRTDLL */

extern int* _imp___fmode_dll;

#define _fmode (*_imp___fmode_dll)

#endif

#else /* __DECLSPEC_SUPPORTED */

#ifdef __MSVCRT__

__MINGW_IMPORT int _fmode;

#else /* ! __MSVCRT__ */

__MINGW_IMPORT int _fmode_dll;

#define _fmode _fmode_dll

#endif /* ! __MSVCRT__ */

#endif /* __DECLSPEC_SUPPORTED */

#endif /* Not __STRICT_ANSI__ */

_CRTIMP double __cdecl atof (const char*);

_CRTIMP int __cdecl atoi (const char*);

_CRTIMP long __cdecl atol (const char*);

#if !defined (__STRICT_ANSI__)

_CRTIMP int __cdecl _wtoi (const wchar_t *);

_CRTIMP long __cdecl _wtol (const wchar_t *);

#endif

_CRTIMP double __cdecl strtod (const char*, char**);

#if !defined __NO_ISOCEXT /* extern stub in static libmingwex.a */

__CRT_INLINE float __cdecl strtof (const char *nptr, char **endptr)

{ return (strtod (nptr, endptr));}

long double __cdecl strtold (const char * __restrict__, char ** __restrict__);

#endif /* __NO_ISOCEXT */

_CRTIMP long __cdecl strtol (const char*, char**, int);

_CRTIMP unsigned long __cdecl strtoul (const char*, char**, int);

#ifndef _WSTDLIB_DEFINED

/* also declared in wchar.h */

_CRTIMP double __cdecl wcstod (const wchar_t*, wchar_t**);

#if !defined __NO_ISOCEXT /* extern stub in static libmingwex.a */

__CRT_INLINE float __cdecl wcstof( const wchar_t *nptr, wchar_t **endptr)

{ return (wcstod(nptr, endptr)); }

long double __cdecl wcstold (const wchar_t * __restrict__, wchar_t ** __restrict__);

#endif /* __NO_ISOCEXT */

_CRTIMP long __cdecl wcstol (const wchar_t*, wchar_t**, int);

_CRTIMP unsigned long __cdecl wcstoul (const wchar_t*, wchar_t**, int);

#define _WSTDLIB_DEFINED

#endif

_CRTIMP size_t __cdecl wcstombs (char*, const wchar_t*, size_t);

_CRTIMP int __cdecl wctomb (char*, wchar_t);

_CRTIMP int __cdecl mblen (const char*, size_t);

_CRTIMP size_t __cdecl mbstowcs (wchar_t*, const char*, size_t);

_CRTIMP int __cdecl mbtowc (wchar_t*, const char*, size_t);

_CRTIMP int __cdecl rand (void);

_CRTIMP void __cdecl srand (unsigned int);

_CRTIMP void* __cdecl calloc (size_t, size_t) __MINGW_ATTRIB_MALLOC;

_CRTIMP void* __cdecl malloc (size_t) __MINGW_ATTRIB_MALLOC;

_CRTIMP void* __cdecl realloc (void*, size_t);

_CRTIMP void __cdecl free (void*);

_CRTIMP void __cdecl abort (void) __MINGW_ATTRIB_NORETURN;

_CRTIMP void __cdecl exit (int) __MINGW_ATTRIB_NORETURN;

/* Note: This is in startup code, not imported directly from dll */

int __cdecl atexit (void (*)(void));

_CRTIMP int __cdecl system (const char*);

_CRTIMP char* __cdecl getenv (const char*);

/* bsearch and qsort are also in non-ANSI header search.h */

_CRTIMP void* __cdecl bsearch (const void*, const void*, size_t, size_t,

int (*)(const void*, const void*));

_CRTIMP void __cdecl qsort (void*, size_t, size_t,

int (*)(const void*, const void*));

_CRTIMP int __cdecl abs (int) __MINGW_ATTRIB_CONST;

_CRTIMP long __cdecl labs (long) __MINGW_ATTRIB_CONST;

* div_t and ldiv_t are structures used to return the results of div and

* ldiv.

* NOTE: div and ldiv appear not to work correctly unless

* -fno-pcc-struct-return is specified. This is included in the

* mingw32 specs file.

typedef struct { int quot, rem; } div_t;

typedef struct { long quot, rem; } ldiv_t;

_CRTIMP div_t __cdecl div (int, int) __MINGW_ATTRIB_CONST;

_CRTIMP ldiv_t __cdecl ldiv (long, long) __MINGW_ATTRIB_CONST;

#if !defined (__STRICT_ANSI__)

* NOTE: Officially the three following functions are obsolete. The Win32 API

* functions SetErrorMode, Beep and Sleep are their replacements.

_CRTIMP void __cdecl _beep (unsigned int, unsigned int);

_CRTIMP void __cdecl _seterrormode (int);

_CRTIMP void __cdecl _sleep (unsigned long);

_CRTIMP void __cdecl _exit (int) __MINGW_ATTRIB_NORETURN;

/* _onexit is MS extension. Use atexit for portability. */

/* Note: This is in startup code, not imported directly from dll */

typedef int (* _onexit_t)(void);

_onexit_t __cdecl _onexit( _onexit_t );

_CRTIMP int __cdecl _putenv (const char*);

_CRTIMP void __cdecl _searchenv (const char*, const char*, char*);

_CRTIMP char* __cdecl _ecvt (double, int, int*, int*);

_CRTIMP char* __cdecl _fcvt (double, int, int*, int*);

_CRTIMP char* __cdecl _gcvt (double, int, char*);

_CRTIMP void __cdecl _makepath (char*, const char*, const char*, const char*, const char*);

_CRTIMP void __cdecl _splitpath (const char*, char*, char*, char*, char*);

_CRTIMP char* __cdecl _fullpath (char*, const char*, size_t);

_CRTIMP char* __cdecl _itoa (int, char*, int);

_CRTIMP char* __cdecl _ltoa (long, char*, int);

_CRTIMP char* __cdecl _ultoa(unsigned long, char*, int);

_CRTIMP wchar_t* __cdecl _itow (int, wchar_t*, int);

_CRTIMP wchar_t* __cdecl _ltow (long, wchar_t*, int);

_CRTIMP wchar_t* __cdecl _ultow (unsigned long, wchar_t*, int);

#ifdef __MSVCRT__

_CRTIMP __int64 __cdecl _atoi64(const char *);

_CRTIMP char* __cdecl _i64toa(__int64, char *, int);

_CRTIMP char* __cdecl _ui64toa(unsigned __int64, char *, int);

_CRTIMP __int64 __cdecl _wtoi64(const wchar_t *);

_CRTIMP wchar_t* __cdecl _i64tow(__int64, wchar_t *, int);

_CRTIMP wchar_t* __cdecl _ui64tow(unsigned __int64, wchar_t *, int);

_CRTIMP wchar_t* __cdecl _wgetenv(const wchar_t*);

_CRTIMP int __cdecl _wputenv(const wchar_t*);

_CRTIMP void __cdecl _wsearchenv(const wchar_t*, const wchar_t*, wchar_t*);

_CRTIMP void __cdecl _wmakepath(wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*);

_CRTIMP void __cdecl _wsplitpath (const wchar_t*, wchar_t*, wchar_t*, wchar_t*, wchar_t*);

_CRTIMP wchar_t* __cdecl _wfullpath (wchar_t*, const wchar_t*, size_t);

_CRTIMP unsigned int __cdecl _rotl(unsigned int, int) __MINGW_ATTRIB_CONST;

_CRTIMP unsigned int __cdecl _rotr(unsigned int, int) __MINGW_ATTRIB_CONST;

_CRTIMP unsigned long __cdecl _lrotl(unsigned long, int) __MINGW_ATTRIB_CONST;

_CRTIMP unsigned long __cdecl _lrotr(unsigned long, int) __MINGW_ATTRIB_CONST;

#endif

#ifndef _NO_OLDNAMES

_CRTIMP int __cdecl putenv (const char*);

_CRTIMP void __cdecl searchenv (const char*, const char*, char*);

_CRTIMP char* __cdecl itoa (int, char*, int);

_CRTIMP char* __cdecl ltoa (long, char*, int);

#ifndef _UWIN

_CRTIMP char* __cdecl ecvt (double, int, int*, int*);

_CRTIMP char* __cdecl fcvt (double, int, int*, int*);

_CRTIMP char* __cdecl gcvt (double, int, char*);

#endif /* _UWIN */

#endif /* Not _NO_OLDNAMES */

#endif /* Not __STRICT_ANSI__ */

/* C99 names */

#if !defined __NO_ISOCEXT /* externs in static libmingwex.a */

/* C99 name for _exit */

void __cdecl _Exit(int) __MINGW_ATTRIB_NORETURN;

#ifndef __STRICT_ANSI__ /* inline using non-ansi functions */

__CRT_INLINE void __cdecl _Exit(int status)

{ _exit(status); }

#endif

typedef struct { long long quot, rem; } lldiv_t;

lldiv_t __cdecl lldiv (long long, long long) __MINGW_ATTRIB_CONST;

__CRT_INLINE long long __cdecl llabs(long long _j)

{return (_j >= 0 ? _j : -_j);}

long long __cdecl strtoll (const char* __restrict__, char** __restrict, int);

unsigned long long __cdecl strtoull (const char* __restrict__, char** __restrict__, int);

#if defined (__MSVCRT__) /* these are stubs for MS _i64 versions */

long long __cdecl atoll (const char *);

#if !defined (__STRICT_ANSI__)

long long __cdecl wtoll (const wchar_t *);

char* __cdecl lltoa (long long, char *, int);

char* __cdecl ulltoa (unsigned long long , char *, int);

wchar_t* __cdecl lltow (long long, wchar_t *, int);

wchar_t* __cdecl ulltow (unsigned long long, wchar_t *, int);

/* inline using non-ansi functions */

__CRT_INLINE long long __cdecl atoll (const char * _c)

{ return _atoi64 (_c); }

__CRT_INLINE char* __cdecl lltoa (long long _n, char * _c, int _i)

{ return _i64toa (_n, _c, _i); }

__CRT_INLINE char* __cdecl ulltoa (unsigned long long _n, char * _c, int _i)

{ return _ui64toa (_n, _c, _i); }

__CRT_INLINE long long __cdecl wtoll (const wchar_t * _w)

{ return _wtoi64 (_w); }

__CRT_INLINE wchar_t* __cdecl lltow (long long _n, wchar_t * _w, int _i)

{ return _i64tow (_n, _w, _i); }

__CRT_INLINE wchar_t* __cdecl ulltow (unsigned long long _n, wchar_t * _w, int _i)

{ return _ui64tow (_n, _w, _i); }

#endif /* (__STRICT_ANSI__) */

#endif /* __MSVCRT__ */

#endif /* !__NO_ISOCEXT */

#ifdef __cplusplus

}

#endif

#endif /* Not RC_INVOKED */

#endif /* Not _STDLIB_H_ */

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