Man page - sdl_arraysize(3)

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Manual

SDL_arraysize

NAME
HEADER FILE
SYNOPSIS
DESCRIPTION
AVAILABILITY

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NAME

SDL_arraysize - The number of elements in a static array.

HEADER FILE

Defined in SDL3/SDL_stdinc.h

SYNOPSIS

#include "SDL3/SDL.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.

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