Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_CompareCallback - A callback used with SDL sorting and binary search functions.
SYNOPSIS
#include <SDL3/SDL_stdinc.h>
typedef int (SDLCALL *SDL_CompareCallback)(const void *a, const void *b);
FUNCTION PARAMETERS
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
SDL_bsearch(3), SDL_qsort(3)
Simple Directmedia Layer SDL 3.2.20 SDL_CompareCallback(3type)