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## Chapter 7. Boost.Functional/Hash

### Daniel James

Copyright © 2005, 2006 Daniel James

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt

## Introduction

`boost::hash` is an implementation of the hash function object specified by the Draft Technical Report on C++ Library Extensions (TR1). It is intended for use as the default hash function for unordered associative containers, and the Boost Multi-Index Containers Library's hash indexes.

As it is compliant with TR1, it will work with:

- integers
- floats
- pointers
- strings

It also implements the extension proposed by Peter Dimov in issue 6.18 of the Library Extension Technical Report Issues List (page 63), this adds support for:

- arrays
- `std::pair`
- the standard containers.
- extending `boost::hash` for custom types.

Last revised: May 11, 2007 at 06:43:01 GMT |