SDL_realloc - Man Page

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"

void * SDL_realloc(void *mem, size_t size);

The memory returned by this function must be freed with

SDL_free ().

If size is 0, it will be set to 1. Note that this is unlike some other C runtime realloc implementations, which may treat realloc(mem,0) the same way as free(mem) .

If mem is NULL, the behavior of this function is equivalent to

SDL_malloc (). Otherwise, the function can have one of three possible outcomes:

· If it returns the same pointer as mem , it means that mem was resized
 in place without freeing.

· If it returns a different non-NULL pointer, it means that mem was freed
 and cannot be dereferenced anymore.

· If it returns NULL (indicating failure), then mem will remain valid and
 must still be freed with SDL_free ().

mem

a pointer to allocated memory to reallocate, or NULL.

size

the new size of the memory.

Returns a pointer to the newly allocated memory, or NULL if allocation failed.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

·(3), SDL_free(3), ·(3), SDL_malloc(3), ·(3), SDL_calloc(3)

SDL_calloc(3), SDL_free(3), SDL_malloc(3), SDL_realloc_func.3type(3).