FcCharSetSubtract (3) - Linux Manuals
FcCharSetSubtract: Subtract charsets
NAME
FcCharSetSubtract - Subtract charsets
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcCharSet * FcCharSetSubtract (const FcCharSet *a, const FcCharSet *b);
DESCRIPTION
Returns a set including only those chars found in a but not b.