boehm-gc/tests/realloc_test.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include "gc.h"
   5
   6 #define COUNT 10000000
   7
   8 int main(void) {
   9   int i;
  10   unsigned long last_heap_size = 0;
  11
  12   GC_INIT();
  13
  14   for (i = 0; i < COUNT; i++) {
  15     int **p = GC_MALLOC(sizeof(int *));
  16     int *q = GC_MALLOC_ATOMIC(sizeof(int));
  17
  18     if (p == 0 || *p != 0) {
  19       fprintf(stderr, "GC_malloc returned garbage (or NULL)\n");
  20       exit(1);
  21     }
  22
  23     *p = GC_REALLOC(q, 2 * sizeof(int));
  24
  25     if (i % 10 == 0) {
  26       unsigned long heap_size = (unsigned long)GC_get_heap_size();
  27       if (heap_size != last_heap_size) {
  28         printf("Heap size: %lu\n", heap_size);
  29         last_heap_size = heap_size;
  30       }
  31     }
  32   }
  33   return 0;
  34 }