src/include/stdlib.h

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/* The <stdlib.h> header defines certain common macros, types, and functions.*/

#ifndef _STDLIB_H
#define _STDLIB_H

#ifndef _ANSI_H
#include <ansi.h>
#endif

/* The macros are NULL, EXIT_FAILURE, EXIT_SUCCESS, RAND_MAX, and MB_CUR_MAX.*/
#define NULL    ((void *)0)

#define EXIT_FAILURE       1    /* standard error return using exit() */
#define EXIT_SUCCESS       0    /* successful return using exit() */
#define RAND_MAX       32767    /* largest value generated by rand() */
#define MB_CUR_MAX         1    /* max value of multibyte character in MINIX */

typedef struct { int quot, rem; } div_t;
typedef struct { long quot, rem; } ldiv_t;

/* The types are size_t, wchar_t, div_t, and ldiv_t. */
#ifndef _SIZE_T
#define _SIZE_T
typedef unsigned int size_t;    /* type returned by sizeof */
#endif

#ifndef _WCHAR_T
#define _WCHAR_T
typedef char wchar_t;           /* type expanded character set */
#endif

/* Function Prototypes. */
_PROTOTYPE( void abort, (void)                                          );
_PROTOTYPE( int abs, (int _j)                                           );
_PROTOTYPE( int atexit, (void (*_func)(void))                           );
_PROTOTYPE( double atof, (const char *_nptr)                            );
_PROTOTYPE( int atoi, (const char *_nptr)                               );
_PROTOTYPE( long atol, (const char *_nptr)                              );
_PROTOTYPE( void *calloc, (size_t _nmemb, size_t _size)                 );
_PROTOTYPE( div_t div, (int _numer, int _denom)                         );
_PROTOTYPE( void exit, (int _status)                                    );
_PROTOTYPE( void free, (void *_ptr)                                     );
_PROTOTYPE( char *getenv, (const char *_name)                           );
_PROTOTYPE( long labs, (long _j)                                        );
_PROTOTYPE( ldiv_t ldiv, (long _numer, long _denom)                     );
_PROTOTYPE( void *malloc, (size_t _size)                                );
_PROTOTYPE( int mblen, (const char *_s, size_t _n)                      );
_PROTOTYPE( size_t mbstowcs, (wchar_t *_pwcs, const char *_s, size_t _n));
_PROTOTYPE( int mbtowc, (wchar_t *_pwc, const char *_s, size_t _n)      );
_PROTOTYPE( int rand, (void)                                            );
_PROTOTYPE( void *realloc, (void *_ptr, size_t _size)                   );
_PROTOTYPE( void srand, (unsigned int _seed)                            );
_PROTOTYPE( double strtod, (const char *_nptr, char **_endptr)          );
_PROTOTYPE( long strtol, (const char *_nptr, char **_endptr, int _base) );
_PROTOTYPE( int system, (const char *_string)                           );
_PROTOTYPE( size_t wcstombs, (char *_s, const wchar_t *_pwcs, size_t _n));
_PROTOTYPE( int wctomb, (char *_s, wchar_t _wchar)                      );
_PROTOTYPE( void *bsearch, (const void *_key, const void *_base, 
        size_t _nmemb, size_t _size, 
        int (*compar) (const void *, const void *))                     );
_PROTOTYPE( void qsort, (void *_base, size_t _nmemb, size_t _size,
        int (*compar) (const void *, const void *))                     );
_PROTOTYPE( unsigned long int strtoul,
                        (const char *_nptr, char **_endptr, int _base)  );

#ifdef _POSIX_SOURCE
/* Open Group Base Specifications Issue 6 */
_PROTOTYPE( int mkstemp, (char *_fmt)                                   );
_PROTOTYPE( char *initstate, (unsigned _seed, char *_state,
                                                        size_t _size)   );
_PROTOTYPE( long random, (void)                                         );
_PROTOTYPE( char *realpath, (const char *file_name, 
                                                 char *resolved_name)   );
_PROTOTYPE( char *setstate, (const char *state)                         );
_PROTOTYPE( void srandom, (unsigned seed)                               );
_PROTOTYPE( int putenv, (char *string)                                  );
_PROTOTYPE( int setenv, (const char *envname, const char *envval,
                                                        int overwrite)  );
_PROTOTYPE( int unsetenv, (const char *name)                            );

#ifdef __LONG_LONG_SUPPORTED
_PROTOTYPE( long long strtoll, (const char *_nptr, char **_endptr,
                                                            int _base)  );
_PROTOTYPE( unsigned long long strtoull, (const char *_nptr, 
                                            char **_endptr, int _base)  );
#endif

#endif

#ifdef _MINIX
_PROTOTYPE( int getloadavg, (double *, int)                             );

/* According to POSIX, getopt should be in unistd.h. What do we do with
 * this?
 */
_PROTOTYPE(int getopt, (int _argc, char * const _argv[], const char *_opts));
extern char *optarg;
extern int optind, opterr, optopt;
#endif /* _MINIX */

#endif /* STDLIB_H */

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