Method read_metadata

libCacheSim/dataStructure/sparsepp/spp.h:1615–1628

    // Reading destroys the old group contents!  Returns true if all was ok.
    template <typename INPUT> bool read_metadata(allocator_type &alloc, INPUT *fp)
    {
        clear(alloc, true);

        if (!sparsehash_internal::read_data(fp, &_bitmap, sizeof(_bitmap)))
            return false;

        // We'll allocate the space, but we won't fill it: it will be
        // left as uninitialized raw memory.
        uint32_t num_items = spp_popcount(_bitmap); // yes, _num_buckets not set
        _set_num_items(num_items);
        _group = num_items ? _allocate_group(alloc, num_items/* , true */) : 0;
        return true;
    }

    // Again, only meaningful if value_type is a POD.
    template <typename INPUT> bool read_nopointer_data(INPUT *fp)