FcCacheSubdir - Return the i’th subdirectory.
#include <fontconfig.h> const FcChar8 * FcCacheSubdir(const FcCache *cache); (inti); .fi
The set of subdirectories stored in a cache file are indexed by this function, i should range from 0 to n-1, where n is the return value from FcCacheNumSubdir.
Fontconfig version 2.8.0 18 November 2009 FcCacheSubdir(3)