Provided by: libfontconfig1-dev_2.13.1-2ubuntu3_amd64 

NAME
FcCharSetEqual - Compare two charsets
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcCharSetEqual (const FcCharSet *a, const FcCharSet *b);
DESCRIPTION
Returns whether a and b contain the same set of Unicode chars.
Fontconfig 2.13.1 06 April 2020 FcCharSetEqual(3)