---
name: "SDL_arraysize"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_arraysize"
---

# SDL\_arraysize(3)

The number of elements in a static array.

## 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.