Man page - fcdircacheunload(3)
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Manual
FcDirCacheUnload
NAMESYNOPSIS
DESCRIPTION
NAME
FcDirCacheUnload - unload a cache file
SYNOPSIS
#include <fontconfig/fontconfig.h>
void FcDirCacheUnload (FcCache * cache );
DESCRIPTION
This function dereferences cache . When no other references to it remain, all memory associated with the cache will be freed.