Provided by: libfontconfig1-dev_2.13.1-2ubuntu3_amd64 

NAME
FcFileIsDir - check whether a file is a directory
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcFileIsDir (const FcChar8 *file);
DESCRIPTION
Returns FcTrue if file is a directory, otherwise returns FcFalse.
Fontconfig 2.13.1 06 April 2020 FcFileIsDir(3)