Mapping from access time to the index of an item in the cache items array.
Limits the number of available mappings to a fixed value and preallocates
all nodes in an array buffer.
Boost Software License Version 1.0. See LICENSE_BOOST.txt for details.
Alternatively, this file may be distributed under the terms of the Tango
3-Clause BSD License (see LICENSE_BSD.txt for details).
Mapping from access time to the index of an item in the cache items array. Limits the number of available mappings to a fixed value and preallocates all nodes in an array buffer.