---
name: "FcIsUpper"
section: "3"
platform: "linux"
package: "fontconfig"
version: "2:2.18.3-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/FcIsUpper"
---

# FcIsUpper(3)

check for upper case ASCII character

## NAME

FcIsUpper - check for upper case ASCII character

## SYNOPSIS

**#include \<fontconfig/fontconfig.h\>**

**FcBool FcIsUpper (FcChar8** *c***);**

## DESCRIPTION

This macro checks whether *c* is a upper case ASCII letter.