include/stdlib.h

   1 /* The <stdlib.h> header defines certain common macros, types, and functions.*/
   2
   3 #ifndef _STDLIB_H
   4 #define _STDLIB_H
   5
   6 #ifndef _ANSI_H
   7 #include <ansi.h>
   8 #endif
   9
  10 /* The macros are NULL, EXIT_FAILURE, EXIT_SUCCESS, RAND_MAX, and MB_CUR_MAX.*/
  11 #define NULL    ((void *)0)
  12
  13 #define EXIT_FAILURE       1    /* standard error return using exit() */
  14 #define EXIT_SUCCESS       0    /* successful return using exit() */
  15 #define RAND_MAX       32767    /* largest value generated by rand() */
  16 #define MB_CUR_MAX         1    /* max value of multibyte character in MINIX */
  17
  18 typedef struct { int quot, rem; } div_t;
  19 typedef struct { long quot, rem; } ldiv_t;
  20
  21 /* The types are size_t, wchar_t, div_t, and ldiv_t. */
  22 #ifndef _SIZE_T
  23 #define _SIZE_T
  24 typedef unsigned int size_t;    /* type returned by sizeof */
  25 #endif
  26
  27 #ifndef _WCHAR_T
  28 #define _WCHAR_T
  29 typedef char wchar_t;           /* type expanded character set */
  30 #endif
  31
  32 /* Function Prototypes. */
  33 _PROTOTYPE( void abort, (void)                                          );
  34 _PROTOTYPE( int abs, (int _j)                                           );
  35 _PROTOTYPE( int atexit, (void (*_func)(void))                           );
  36 _PROTOTYPE( double atof, (const char *_nptr)                            );
  37 _PROTOTYPE( int atoi, (const char *_nptr)                               );
  38 _PROTOTYPE( long atol, (const char *_nptr)                              );
  39 _PROTOTYPE( void *calloc, (size_t _nmemb, size_t _size)                 );
  40 _PROTOTYPE( div_t div, (int _numer, int _denom)                         );
  41 _PROTOTYPE( void exit, (int _status)                                    );
  42 _PROTOTYPE( void free, (void *_ptr)                                     );
  43 _PROTOTYPE( char *getenv, (const char *_name)                           );
  44 _PROTOTYPE( long labs, (long _j)                                        );
  45 _PROTOTYPE( ldiv_t ldiv, (long _numer, long _denom)                     );
  46 _PROTOTYPE( void *malloc, (size_t _size)                                );
  47 _PROTOTYPE( int mblen, (const char *_s, size_t _n)                      );
  48 _PROTOTYPE( size_t mbstowcs, (wchar_t *_pwcs, const char *_s, size_t _n));
  49 _PROTOTYPE( int mbtowc, (wchar_t *_pwc, const char *_s, size_t _n)      );
  50 _PROTOTYPE( int rand, (void)                                            );
  51 _PROTOTYPE( void *realloc, (void *_ptr, size_t _size)                   );
  52 _PROTOTYPE( void srand, (unsigned int _seed)                            );
  53 _PROTOTYPE( double strtod, (const char *_nptr, char **_endptr)          );
  54 _PROTOTYPE( long strtol, (const char *_nptr, char **_endptr, int _base) );
  55 _PROTOTYPE( int system, (const char *_string)                           );
  56 _PROTOTYPE( size_t wcstombs, (char *_s, const wchar_t *_pwcs, size_t _n));
  57 _PROTOTYPE( int wctomb, (char *_s, wchar_t _wchar)                      );
  58 _PROTOTYPE( void *bsearch, (const void *_key, const void *_base,
  59         size_t _nmemb, size_t _size,
  60         int (*compar) (const void *, const void *))                     );
  61 _PROTOTYPE( void qsort, (void *_base, size_t _nmemb, size_t _size,
  62         int (*compar) (const void *, const void *))                     );
  63 _PROTOTYPE( unsigned long int strtoul,
  64                         (const char *_nptr, char **_endptr, int _base)  );
  65
  66 #ifdef _POSIX_SOURCE
  67 /* Open Group Base Specifications Issue 6 */
  68 _PROTOTYPE( int mkstemp, (char *_fmt)                                   );
  69 _PROTOTYPE( char *initstate, (unsigned _seed, char *_state,
  70                                                         size_t _size)   );
  71 _PROTOTYPE( long random, (void)                                         );
  72 _PROTOTYPE( char *setstate, (const char *state)                         );
  73 _PROTOTYPE( void srandom, (unsigned seed)                               );
  74 _PROTOTYPE( int putenv, (char *string)                                  );
  75 _PROTOTYPE( int setenv, (const char *envname, const char *envval,
  76                                                         int overwrite)  );
  77 _PROTOTYPE( int unsetenv, (const char *name)                            );
  78 #endif
  79
  80 #ifdef _MINIX
  81 _PROTOTYPE( int getloadavg, (double *, int)                             );
  82
  83 /* According to POSIX, getopt should be in unistd.h. What do we do with
  84  * this?
  85  */
  86 _PROTOTYPE(int getopt, (int _argc, char * const _argv[], const char *_opts));
  87 extern char *optarg;
  88 extern int optind, opterr, optopt;
  89 #endif /* _MINIX */
  90
  91 #endif /* STDLIB_H */