FcCharSetUnion(3) FcCharSetUnion(3) NAME FcCharSetUnion - Add charsets SYNOPSIS #include FcCharSet * FcCharSetUnion (const FcCharSet *a, const FcCharSet *b); DESCRIPTION Returns a set including only those chars found in either a or b. Fontconfig 2.17.1 02 July 2025 FcCharSetUnion(3)