Provided by: libfontconfig1-dev_2.11.94-0ubuntu1.1_amd64 

NAME
FcDirCacheValid - check directory cache
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcBool FcDirCacheValid (const FcChar8 *dir);
DESCRIPTION
Returns FcTrue if dir has an associated valid cache file, else returns FcFalse
Fontconfig 2.11.94 02 6月 2015 FcDirCacheValid(3)