newlib/winsup/mingw/include/stdlib.h

418 lines
10 KiB
C

/*
* stdlib.h
*
* Definitions for common types, variables, and functions.
*
* This file is part of the Mingw32 package.
*
* Contributors:
* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* $Revision$
* $Author$
* $Date$
*
*/
#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
/*
* 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* __p___argc(void);
extern char*** __p___argv(void);
extern wchar_t*** __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 */
/*
* Also defined in ctype.h.
*/
#ifndef MB_CUR_MAX
# 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 */
#endif /* MB_CUR_MAX */
/*
* MS likes to declare errno in stdlib.h as well.
*/
#ifdef _UWIN
#undef errno
extern int errno;
#else
int* _errno(void);
#define errno (*_errno())
#endif
int* __doserrno(void);
#define _doserrno (*__doserrno())
/*
* Use environ from the DLL, not as a global.
*/
#ifdef __MSVCRT__
extern char *** __p__environ();
extern wchar_t *** __p__wenviron();
# 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.
*/
#ifndef __STRICT_ANSI__
#ifdef __MSVCRT__
/* msvcrtxx.dll */
extern unsigned int* __p__osver(void);
extern unsigned int* __p__winver(void);
extern unsigned int* __p__winmajor(void);
extern unsigned int* __p__winminor(void);
#define _osver (*__p__osver())
#define _winver (*__p__winver())
#define _winmajor (*__p__winmajor())
#define _winminor (*__p__winminor())
#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. */
char** __p__pgmptr(void);
#define _pgmptr (*__p__pgmptr())
wchar_t** __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__ */
#endif /* Not __STRICT_ANSI__ */
#ifdef __GNUC__
#define _ATTRIB_NORETURN __attribute__ ((noreturn))
#else /* Not __GNUC__ */
#define _ATTRIB_NORETURN
#endif /* __GNUC__ */
double atof (const char*);
int atoi (const char*);
long atol (const char*);
int _wtoi (const wchar_t *);
long _wtol (const wchar_t *);
double strtod (const char*, char**);
double wcstod (const wchar_t*, wchar_t**);
long strtol (const char*, char**, int);
long wcstol (const wchar_t*, wchar_t**, int);
unsigned long strtoul (const char*, char**, int);
unsigned long wcstoul (const wchar_t*, wchar_t**, int);
size_t wcstombs (char*, const wchar_t*, size_t);
int wctomb (char*, wchar_t);
int mblen (const char*, size_t);
size_t mbstowcs (wchar_t*, const char*, size_t);
int mbtowc (wchar_t*, const char*, size_t);
int rand (void);
void srand (unsigned int);
void* calloc (size_t, size_t);
void* malloc (size_t);
void* realloc (void*, size_t);
void free (void*);
void abort (void) _ATTRIB_NORETURN;
void exit (int) _ATTRIB_NORETURN;
int atexit (void (*)(void));
int system (const char*);
char* getenv (const char*);
void* bsearch (const void*, const void*, size_t, size_t,
int (*)(const void*, const void*));
void qsort (const void*, size_t, size_t,
int (*)(const void*, const void*));
int abs (int);
long labs (long);
/*
* 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;
div_t div (int, int);
ldiv_t ldiv (long, long);
#ifndef __STRICT_ANSI__
/*
* NOTE: Officially the three following functions are obsolete. The Win32 API
* functions SetErrorMode, Beep and Sleep are their replacements.
*/
void _beep (unsigned int, unsigned int);
void _seterrormode (int);
void _sleep (unsigned long);
void _exit (int) _ATTRIB_NORETURN;
int _putenv (const char*);
void _searchenv (const char*, const char*, char*);
char* _ecvt (double, int, int*, int*);
char* _fcvt (double, int, int*, int*);
char* _gcvt (double, int, char*);
void _makepath (char*, const char*, const char*, const char*, const char*);
void _splitpath (const char*, char*, char*, char*, char*);
char* _fullpath (char*, const char*, size_t);
char* _itoa (int, char*, int);
char* _ltoa (long, char*, int);
char* _ultoa(unsigned long, char*, int);
wchar_t* _itow (int, wchar_t*, int);
wchar_t* _ltow (long, wchar_t*, int);
wchar_t* _ultow (unsigned long, wchar_t*, int);
#ifdef __MSVCRT__
__int64 _atoi64(const char *);
char* _i64toa(__int64, char *, int);
char* _ui64toa(unsigned __int64, char *, int);
__int64 _wtoi64(const wchar_t *);
wchar_t* _i64tow(__int64, wchar_t *, int);
wchar_t* _ui64tow(unsigned __int64, wchar_t *, int);
wchar_t* _wgetenv(const wchar_t*);
int _wputenv(const wchar_t*);
void _wsearchenv(const wchar_t*, const wchar_t*, wchar_t*);
void _wmakepath(wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*, const wchar_t*);
void _wsplitpath (const wchar_t*, wchar_t*, wchar_t*, wchar_t*, wchar_t*);
wchar_t* _wfullpath (wchar_t*, const wchar_t*, size_t);
#endif
#ifndef _NO_OLDNAMES
int putenv (const char*);
void searchenv (const char*, const char*, char*);
char* itoa (int, char*, int);
char* ltoa (long, char*, int);
#ifndef _UWIN
char* ecvt (double, int, int*, int*);
char* fcvt (double, int, int*, int*);
char* gcvt (double, int, char*);
#endif /* _UWIN */
#endif /* Not _NO_OLDNAMES */
#endif /* Not __STRICT_ANSI__ */
/*
* Undefine the no return attribute used in some function definitions
*/
#undef _ATTRIB_NORETURN
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* Not _STDLIB_H_ */