malloc_size3
Memory allocation information
Usage
#include <malloc/malloc.h>
size_t
malloc_good_size(size_t size);
size_t
malloc_size(const void *ptr);
Overview
The malloc_size() function returns the size of the memory block that backs the allocation pointed to by ptr. The memory block size is always at least as large as the allocation it backs, and may be larger.
The malloc_good_size() function rounds size up to a value that the allocator implementation can allocate without adding any padding; it then returns that rounded-up value.
Releases
Unchanged in 109 releases since Mac OS X 10.5.