Checks whether the allocator used by g_malloc() is the system's
malloc implementation. If it returns TRUE memory allocated with
malloc() can be used interchangeable with memory allocated using g_malloc().
This function is useful for avoiding an extra copy of allocated memory returned
by a non-GLib-based API.
A different allocator can be set using g_mem_set_vtable().
Checks whether the allocator used by g_malloc() is the system's malloc implementation. If it returns TRUE memory allocated with malloc() can be used interchangeable with memory allocated using g_malloc(). This function is useful for avoiding an extra copy of allocated memory returned by a non-GLib-based API. A different allocator can be set using g_mem_set_vtable().