Provided by: libfontconfig1-dev_2.13.1-2ubuntu3_amd64 

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.
Fontconfig 2.13.1 06 April 2020 FcPatternEqualSubset(3)