Provided by: libsdl3-doc_3.2.26+ds-2_all 

NAME
SDL_arraysize - The number of elements in a static array.
SYNOPSIS
#include <SDL3/SDL_stdinc.h>
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
DESCRIPTION
This will compile but return incorrect results for a pointer to an array; it has to be an array the
compiler knows the size of.
This macro looks like it double-evaluates the argument, but it does so inside of sizeof, so there are no
side-effects here, as expressions do not actually run any code in these cases.
AVAILABILITY
This macro is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.26 SDL_arraysize(3)