Boehm Garbage Collector - Operation

Operation

The garbage collector works with most unmodified C programs, simply by replacing malloc with GC_MALLOC calls, replacing realloc with GC_REALLOC calls, and removing free calls. The code piece below shows how one can use Boehm instead of traditional malloc and free in C.

#include #include #include int main(void) { int i; GC_INIT; for (i = 0; i < 10000000; ++i) { int **p = (int**)GC_MALLOC(sizeof(int *)); int *q = (int*)GC_MALLOC_ATOMIC(sizeof(int)); assert(*p == 0); *p = (int*)GC_REALLOC(q, 2 * sizeof(int)); if (i % 100000 == 0) printf("Heap size = %zu\n", GC_get_heap_size); } return 0; }

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