memcheck/tests/freebsd/static_allocs.c

   1 #include <stdio.h>
   2
   3 static char buf[10000];
   4 static int bufi = 0;
   5 void *realloc(void *ptr, size_t size) {
   6    if (!ptr) {
   7       bufi += size;
   8       return buf + bufi - size;
   9    } else {
  10       return NULL;
  11    }
  12 }
  13
  14 void *calloc(size_t number, size_t size) {
  15    bufi += number*size;
  16
  17    return buf + bufi - (number*size);
  18 }
  19
  20
  21 void free(void*ptr) {
  22 }
  23
  24 void *reallocf(void *ptr, size_t size) {
  25    return ptr;
  26 }
  27
  28 volatile char* nullptr = NULL;
  29
  30
  31 int main (void)
  32 {
  33    char *p;
  34    p = realloc((void*)nullptr, 10);
  35    p = calloc(10, 16);
  36    (void)reallocf(p, 0);
  37    return 0;
  38 }
  39