| .. Copyright David Abrahams 2006. 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) |
| |
| The zip iterator provides the ability to parallel-iterate |
| over several controlled sequences simultaneously. A zip |
| iterator is constructed from a tuple of iterators. Moving |
| the zip iterator moves all the iterators in parallel. |
| Dereferencing the zip iterator returns a tuple that contains |
| the results of dereferencing the individual iterators. |
| |
| The tuple of iterators is now implemented in terms of a Boost fusion sequence. |
| Because of this the 'tuple' may be any Boost fusion sequence and, for backwards |
| compatibility through a Boost fusion sequence adapter, a Boost tuple. Because the |
| 'tuple' may be any boost::fusion sequence the 'tuple' may also be any type for which a |
| Boost fusion adapter exists. This includes, among others, a std::tuple and a std::pair. |
| Just remember to include the appropriate Boost fusion adapter header files for these |
| other Boost fusion adapters. The zip_iterator header file already includes the |
| Boost fusion adapter header file for Boost tuple, so you need not include it yourself |
| to use a Boost tuple as your 'tuple'. |
