FcCharSetSubtract(3) FcCharSetSubtract(3) NAME FcCharSetSubtract - Subtract charsets SYNOPSIS #include FcCharSet * FcCharSetSubtract (const FcCharSet *a, const FcCharSet *b); DESCRIPTION Returns a set including only those chars found in a but not b. Fontconfig 2.18.3 23 August 2026 FcCharSetSubtract(3)