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stdlib.h revision 1.51
      1 /*	$NetBSD: stdlib.h,v 1.51 2000/12/20 18:35:21 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
     36  */
     37 
     38 #ifndef _STDLIB_H_
     39 #define _STDLIB_H_
     40 
     41 #include <sys/cdefs.h>
     42 #include <sys/featuretest.h>
     43 
     44 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
     45     !defined(_XOPEN_SOURCE)
     46 #include <sys/types.h>		/* for quad_t, etc. */
     47 #endif
     48 
     49 #include <machine/ansi.h>
     50 
     51 #ifdef	_BSD_SIZE_T_
     52 typedef	_BSD_SIZE_T_	size_t;
     53 #undef	_BSD_SIZE_T_
     54 #endif
     55 
     56 #ifdef	_BSD_WCHAR_T_
     57 typedef	_BSD_WCHAR_T_	wchar_t;
     58 #undef	_BSD_WCHAR_T_
     59 #endif
     60 
     61 typedef struct {
     62 	int quot;		/* quotient */
     63 	int rem;		/* remainder */
     64 } div_t;
     65 
     66 typedef struct {
     67 	long quot;		/* quotient */
     68 	long rem;		/* remainder */
     69 } ldiv_t;
     70 
     71 #if !defined(_ANSI_SOURCE) && \
     72     (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
     73      defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
     74 typedef struct {
     75 	/* LONGLONG */
     76 	long long int quot;	/* quotient */
     77 	/* LONGLONG */
     78 	long long int rem;	/* remainder */
     79 } lldiv_t;
     80 #endif
     81 
     82 #if !defined(_ANSI_SOURCE) && !defined(_ISOC99_SOURCE) && \
     83     !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
     84 typedef struct {
     85 	quad_t quot;		/* quotient */
     86 	quad_t rem;		/* remainder */
     87 } qdiv_t;
     88 #endif
     89 
     90 
     91 #include <sys/null.h>
     92 
     93 #define	EXIT_FAILURE	1
     94 #define	EXIT_SUCCESS	0
     95 
     96 #define	RAND_MAX	0x7fffffff
     97 
     98 extern size_t __mb_cur_max;
     99 #define	MB_CUR_MAX	__mb_cur_max
    100 
    101 __BEGIN_DECLS
    102 __dead	 void abort __P((void)) __attribute__((__noreturn__));
    103 __pure	 int abs __P((int));
    104 int	 atexit __P((void (*)(void)));
    105 double	 atof __P((const char *));
    106 int	 atoi __P((const char *));
    107 long	 atol __P((const char *));
    108 #ifndef __BSEARCH_DECLARED
    109 #define __BSEARCH_DECLARED
    110 /* also in search.h */
    111 void	*bsearch __P((const void *, const void *, size_t, size_t,
    112     int (*)(const void *, const void *)));
    113 #endif /* __BSEARCH_DECLARED */
    114 void	*calloc __P((size_t, size_t));
    115 div_t	 div __P((int, int));
    116 __dead	 void exit __P((int)) __attribute__((__noreturn__));
    117 void	 free __P((void *));
    118 __aconst char *getenv __P((const char *));
    119 __pure long
    120 	 labs __P((long));
    121 ldiv_t	 ldiv __P((long, long));
    122 void	*malloc __P((size_t));
    123 void	 qsort __P((void *, size_t, size_t,
    124 	    int (*)(const void *, const void *)));
    125 int	 rand __P((void));
    126 void	*realloc __P((void *, size_t));
    127 void	 srand __P((unsigned));
    128 double	 strtod __P((const char *, char **));
    129 long	 strtol __P((const char *, char **, int));
    130 unsigned long
    131 	 strtoul __P((const char *, char **, int));
    132 int	 system __P((const char *));
    133 
    134 /* These are currently just stubs. */
    135 int	 mblen __P((const char *, size_t));
    136 size_t	 mbstowcs __P((wchar_t *, const char *, size_t));
    137 int	 wctomb __P((char *, wchar_t));
    138 int	 mbtowc __P((wchar_t *, const char *, size_t));
    139 size_t	 wcstombs __P((char *, const wchar_t *, size_t));
    140 
    141 #if !defined(_ANSI_SOURCE)
    142 
    143 
    144 /*
    145  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
    146  */
    147 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
    148     (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
    149     defined(_REENTRANT)
    150 int	 rand_r __P((unsigned int *));
    151 #endif
    152 
    153 
    154 /*
    155  * X/Open Portability Guide >= Issue 4
    156  */
    157 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
    158     (_XOPEN_SOURCE - 0) >= 4
    159 double	 drand48 __P((void));
    160 double	 erand48 __P((unsigned short[3]));
    161 long	 jrand48 __P((unsigned short[3]));
    162 void	 lcong48 __P((unsigned short[7]));
    163 long	 lrand48 __P((void));
    164 long	 mrand48 __P((void));
    165 long	 nrand48 __P((unsigned short[3]));
    166 unsigned short *
    167 	 seed48 __P((unsigned short[3]));
    168 void	 srand48 __P((long));
    169 
    170 int	 putenv __P((const char *));
    171 #endif
    172 
    173 
    174 /*
    175  * X/Open Portability Guide >= Issue 4 Version 2
    176  */
    177 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
    178     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
    179     (_XOPEN_SOURCE - 0) >= 500
    180 long	 a64l __P((const char *));
    181 char	*l64a __P((long));
    182 
    183 char	*initstate __P((unsigned long, char *, size_t));
    184 long	 random __P((void));
    185 char	*setstate __P((char *));
    186 void	 srandom __P((unsigned long));
    187 
    188 char	*mkdtemp __P((char *));
    189 int	 mkstemp __P((char *));
    190 #ifndef __AUDIT__
    191 char	*mktemp __P((char *));
    192 #endif
    193 
    194 int	 setkey __P((const char *));
    195 
    196 char	*realpath __P((const char *, char *));
    197 
    198 int	 ttyslot __P((void));
    199 
    200 void	*valloc __P((size_t));		/* obsoleted by malloc() */
    201 #endif
    202 
    203 /*
    204  * ISO C99
    205  */
    206 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
    207     defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L
    208 /* LONGLONG */
    209 long long int	atoll __P((const char *));
    210 /* LONGLONG */
    211 long long int	llabs __P((long long int));
    212 /* LONGLONG */
    213 lldiv_t		lldiv __P((long long int, long long int));
    214 /* LONGLONG */
    215 long long int	strtoll __P((const char *, char **, int));
    216 /* LONGLONG */
    217 unsigned long long int	strtoull __P((const char *, char **, int));
    218 #endif
    219 
    220 /*
    221  * Implementation-defined extensions
    222  */
    223 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
    224 #if defined(alloca) && (alloca == __builtin_alloca) && (__GNUC__ < 2)
    225 void	*alloca __P((int));     /* built-in for gcc */
    226 #else
    227 void	*alloca __P((size_t));
    228 #endif /* __GNUC__ */
    229 
    230 char	*getbsize __P((int *, long *));
    231 char	*cgetcap __P((char *, const char *, int));
    232 int	 cgetclose __P((void));
    233 int	 cgetent __P((char **, char **, const char *));
    234 int	 cgetfirst __P((char **, char **));
    235 int	 cgetmatch __P((const char *, const char *));
    236 int	 cgetnext __P((char **, char **));
    237 int	 cgetnum __P((char *, const char *, long *));
    238 int	 cgetset __P((const char *));
    239 int	 cgetstr __P((char *, const char *, char **));
    240 int	 cgetustr __P((char *, const char *, char **));
    241 
    242 int	 daemon __P((int, int));
    243 __aconst char *devname __P((dev_t, mode_t));
    244 int	 getloadavg __P((double [], int));
    245 
    246 void	 cfree __P((void *));
    247 
    248 int	 heapsort __P((void *, size_t, size_t,
    249 	    int (*)(const void *, const void *)));
    250 int	 mergesort __P((void *, size_t, size_t,
    251 	    int (*)(const void *, const void *)));
    252 int	 radixsort __P((const unsigned char **, int, const unsigned char *,
    253 	    unsigned));
    254 int	 sradixsort __P((const unsigned char **, int, const unsigned char *,
    255 	    unsigned));
    256 
    257 int	 setenv __P((const char *, const char *, int));
    258 void	 unsetenv __P((const char *));
    259 void	 setproctitle __P((const char *, ...))
    260 	    __attribute__((__format__(__printf__, 1, 2)));
    261 
    262 quad_t	 qabs __P((quad_t));
    263 qdiv_t	 qdiv __P((quad_t, quad_t));
    264 quad_t	 strtoq __P((const char *, char **, int));
    265 u_quad_t strtouq __P((const char *, char **, int));
    266 
    267 int	 l64a_r __P((long, char *, int));
    268 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
    269 #endif /* !_ANSI_SOURCE */
    270 __END_DECLS
    271 
    272 #endif /* !_STDLIB_H_ */
    273