Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 bug

NAME
       FcValueEqual - Test two values for equality


SYNOPSIS
       #include <fontconfig/fontconfig.h>

       FcBool FcValueEqual (FcValue v_a, FcValue v_b);


DESCRIPTION
       Compares  two  values.  Integers and Doubles are compared as numbers; otherwise the two values have to be
       the same type to be considered equal. Strings are compared ignoring case.

Fontconfig 2.12.6                                 05 April 2018                                  FcValueEqual(3)