---
name: "FcPatternEqualSubset"
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/FcPatternEqualSubset"
---

# FcPatternEqualSubset(3)

Compare portions of patterns

## NAME

FcPatternEqualSubset - Compare portions of patterns

## SYNOPSIS

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

**FcBool FcPatternEqualSubset (const FcPattern \****pa***, const FcPattern \****pb***, const FcObjectSet \****os***);**

## DESCRIPTION

Returns whether *pa* and *pb* have exactly the same values for all of the objects in *os*.