Function sdl2_sys::SDL_SetMemoryFunctions

pub unsafe extern "C" fn SDL_SetMemoryFunctions(
    malloc_func: SDL_malloc_func, 
    calloc_func: SDL_calloc_func, 
    realloc_func: SDL_realloc_func, 
    free_func: SDL_free_func
) -> c_int

\brief Replace SDL's memory allocation functions with a custom set

\note If you are replacing SDL's memory functions, you should call SDL_GetNumAllocations() and be very careful if it returns non-zero. That means that your free function will be called with memory allocated by the previous memory allocation functions.