---
name: "utoupper"
section: "3alleg4"
platform: "linux"
package: "allegro4-doc"
version: "2:4.4.3.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/utoupper/3alleg4"
---

# utoupper(3alleg4)

Converts a letter to upper case. Allegro game programming library.

## NAME

utoupper - Converts a letter to upper case. Allegro game programming library.

## SYNOPSIS

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

**int utoupper(int c);**

## DESCRIPTION

This function returns \`c', converting it to upper case if it is lower case.

## SEE ALSO

**utolower**(3alleg4), **ugetc**(3alleg4), **ugetx**(3alleg4), **usetc**(3alleg4), **uwidth**(3alleg4), **ucwidth**(3alleg4), **uisok**(3alleg4)