Manpages - FcCharSetAddChar.3

FcCharSetAddChar - Add a character to a charset

#include <fontconfig/fontconfig.h>

FcBool FcCharSetAddChar (FcCharSet fcs, FcChar32 ucs4);*

FcCharSetAddChar adds a single Unicode char to the set, returning FcFalse on failure, either as a result of a constant set or from running out of memory.