NAME¶

SDL_CompareCallback_r - A callback used with SDL sorting and binary search functions.

SYNOPSIS¶

#include <SDL3/SDL_stdinc.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¶

SDL_qsort_r(3), SDL_bsearch_r(3)