---
name: "file_size_ex"
section: "3alleg"
platform: "linux"
package: "liballegro-doc"
version: "2:4.2.2-2.2"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/file_size_ex"
---

# file\_size\_ex(3alleg)

Returns the size of a file in bytes. Allegro game programming library.

## NAME

file\_size\_ex - Returns the size of a file in bytes. Allegro game programming library.

## SYNOPSIS

**#include \<allegro.h\>**

**uint64\_t file\_size\_ex(const char \*filename);**

## DESCRIPTION

Returns the size of a file, in bytes. If the file does not exist or an  error occurs, it will return zero and store the system error code in  errno.

## SEE ALSO

[**file\_exists**(3alleg)](/file_exists/3alleg.md), [**file\_time**(3alleg)](/file_time/3alleg.md), [**expackf**(3alleg)](/expackf/3alleg.md)