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 __MINGW_NOTHROW   __p___argc(void);
extern char*** __cdecl __MINGW_NOTHROW  __p___argv(void);
extern wchar_t***  __cdecl __MINGW_NOTHROW __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 __MINGW_NOTHROW	_errno(void);
#define	errno		(*_errno())
#endif
 _CRTIMP int* __cdecl __MINGW_NOTHROW	__doserrno(void);
#define	_doserrno	(*__doserrno())

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

#ifdef __MSVCRT__
  extern _CRTIMP char *** __cdecl __MINGW_NOTHROW __p__environ(void);
  extern _CRTIMP wchar_t *** __cdecl __MINGW_NOTHROW  __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 __MINGW_NOTHROW int*	__p__osver(void);
extern _CRTIMP unsigned __cdecl __MINGW_NOTHROW int*	__p__winver(void);
extern _CRTIMP unsigned __cdecl __MINGW_NOTHROW int*	__p__winmajor(void);
extern _CRTIMP unsigned __cdecl __MINGW_NOTHROW 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 __MINGW_NOTHROW __p__pgmptr(void);
#define _pgmptr     (*__p__pgmptr())
_CRTIMP wchar_t** __cdecl __MINGW_NOTHROW __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?
 */