Linux Manuals · Linux Manuals session 3 FcToLower (3) Linux Manual Page ByLinux Manual Posted onApr 20, 2026 FcToLower – convert upper case ASCII to lower case Read more: Setting Up eCryptFS on Linux: A Manual Guide Synopsis#include <fontconfig/fontconfig.h> FcChar8 FcToLower (FcChar8c); DescriptionThis macro converts upper case ASCII c to the equivalent lower case letter. Read more: x86_64-linux-gnu-cpp-11 (1) Linux Manual Page x86_64-linux-gnu-g++-11 (1) Linux Manual Page x86_64-linux-gnu-gcc-8 (1) Linux Manual Page x86_64-linux-gnu-gcc-nm-11 (1) Linux Manual Page x86_64-linux-gnu-gcc-ranlib-7 (1) Linux Manual Page x86_64-linux-gnu-gcov-8 (1) Linux Manual Page x86_64-linux-gnu-gcov-tool-11 (1) Linux Manual Page x86_64-linux-gnu-gfortran-8 (1) Linux Manual Page