stdlib.h

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