Provided by: libfontconfig1-dev_2.13.1-2ubuntu3_amd64 bug

NAME
       FcCharSetAddChar - Add a character to a charset


SYNOPSIS
       #include <fontconfig/fontconfig.h>

       FcBool FcCharSetAddChar (FcCharSet *fcs, FcChar32 ucs4);


DESCRIPTION
       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.

Fontconfig 2.13.1                                 06 April 2020                              FcCharSetAddChar(3)