Provided by: libfontconfig-doc_2.13.1-4.2ubuntu5_all 

NAME
FcToLower - convert upper case ASCII to lower case
SYNOPSIS
#include <fontconfig/fontconfig.h> FcChar8 FcToLower (FcChar8c);
DESCRIPTION
This macro converts upper case ASCII c to the equivalent lower case letter. Fontconfig 2.13.1 23 March 2022 FcToLower(3)