+typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
+typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
+typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
+typedef void (SDLCALL *SDL_free_func)(void *mem);
+
+/**
+ * \brief Get the current set of SDL memory functions
+ */
+extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
+ SDL_calloc_func *calloc_func,
+ SDL_realloc_func *realloc_func,
+ SDL_free_func *free_func);
+
+/**
+ * \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.
+ */
+extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
+ SDL_calloc_func calloc_func,
+ SDL_realloc_func realloc_func,
+ SDL_free_func free_func);
+
+/**
+ * \brief Get the number of outstanding (unfreed) allocations
+ */
+extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
+