NAME

       FcCharSetMerge - Merge charsets

SYNOPSIS

       #include <fontconfig/fontconfig.h>

       FcBool FcCharSetMerge (FcCharSet *a, const FcCharSet *b, FcBool *changed);

DESCRIPTION

       Adds  all chars in b to a.  In other words, this is an in-place version of FcCharSetUnion.  If changed is
       not NULL, then it returns whether any new chars from b were added to  a.   Returns  FcFalse  on  failure,
       either when a is a constant set or from running out of memory.