stdlib.h

   1 #include <stddef.h>
   2
   3 #define RAND_MAX                0x7fffffff
   4
   5 void *malloc(long n);
   6 void free(void *m);
   7 void *calloc(long n, long sz);
   8 void *realloc(void *v, long sz);
   9
  10 int atoi(char *s);
  11 long atol(char *s);
  12 long strtol(const char *s, char **endptr, int base);
  13 unsigned long strtoul(const char *s, char **endptr, int base);
  14 int abs(int n);
  15 long labs(long n);
  16
  17 void exit(int status);
  18 void abort(void);
  19 int atexit(void (*func)(void));
  20
  21 char *getenv(char *name);
  22 void qsort(void *a, int n, int sz, int (*cmp)(void *, void *));
  23 int mkstemp(char *t);
  24 int system(char *cmd);
  25
  26 void srand(unsigned int seed);
  27 int rand(void);
  28
  29 /* for examining heap memory allocation */
  30 #ifdef MEMTST
  31 void *memtst_malloc(long n);
  32 void memtst_free(void *v);
  33 void *memtst_calloc(long n, long sz);
  34 void *memtst_realloc(void *v, long sz);
  35 #define malloc  memtst_malloc
  36 #define free    memtst_free
  37 #define calloc  memtst_calloc
  38 #define realloc memtst_realloc
  39 #endif