void * snapshot_malloc(size_t size);
void * snapshot_calloc(size_t count, size_t size);
void * snapshot_realloc(void *ptr, size_t size);
void snapshot_free(void *ptr);
void * snapshot_malloc(size_t size);
void * snapshot_calloc(size_t count, size_t size);
void * snapshot_realloc(void *ptr, size_t size);
void snapshot_free(void *ptr);