NAME
SDL_CompareCallback_r - A callback used with SDL sorting and binary search functions.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h"
typedef int (SDLCALL *SDL_CompareCallback_r)(void *userdata, const void *a, const void *b);
FUNCTION PARAMETERS
- userdata
-
the userdata pointer passed to the sort function.
- a
-
a pointer to the first element being compared.
- b
-
a pointer to the second element being compared.
RETURN VALUE
Returns -1 if a should be sorted before b , 1 if b should be sorted before a , 0 if they are equal. If two elements are equal, their order in the sorted array is undefined.
AVAILABILITY
This callback is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_qsort_r(3), •(3), SDL_bsearch_r(3)