Method exist

libCacheSim/cache/eviction/LRB/cache.h:37–39

check whether an object in a cache. Not update metadata

        virtual bool lookup(const SimpleRequest &req) = 0;
        // check whether an object in a cache. Not update metadata
        virtual bool exist(const int64_t &key) {
            throw runtime_error("Error: exist() function not implemented");
        }

        virtual void admit(const SimpleRequest &req) = 0;