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| 14 | <div class="section" id="sequences"> | |
| 15 | <h1><a class="toc-backref" href="../refmanual.html#id1393">Sequences</a></h1> | |
| 16 | <p id="label-sequences">Compile-time sequences of types are one of the basic concepts of C++ | |
| 17 | template metaprogramming. Differences in types of objects being | |
| 18 | manipulated is the most common point of variability of similar, but | |
| 19 | not identical designs, and these are a direct target for | |
| 20 | metaprogramming. Templates were originally designed to address this | |
| 21 | exact problem. However, without predefined mechanisms for | |
| 22 | representing and manipulating <em>sequences</em> of types as opposed to | |
| 23 | standalone template parameters, high-level template metaprogramming | |
| 24 | is severely limited in its capabitilies.</p> | |
| 25 | <p>The MPL recognizes the importance of type sequences as a fundamental | |
| 26 | building block of many higher-level metaprogramming designs by | |
| 27 | providing us with a conceptual framework for formal reasoning | |
| 28 | and understanding of sequence properties, guarantees and | |
| 29 | characteristics, as well as a first-class implementation of that | |
| 30 | framework — a wealth of tools for concise, convenient, | |
| 31 | conceptually precise and efficient sequence manipulation.</p> | |
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| 42 | <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> | |
| 43 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 44 | file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body> | |
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