FcDirCacheValid (3) - Linux Manuals
FcDirCacheValid: check directory cache
Command to display FcDirCacheValid manual in Linux: $ man 3 FcDirCacheValid
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
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