| <?xml version="1.0" encoding="utf-8" ?> |
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> |
| <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" /> |
| <title>The MPL Reference Manual: Views</title> |
| <link rel="stylesheet" href="../style.css" type="text/css" /> |
| </head> |
| <body class="docframe refmanual"> |
| <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./string.html" class="navigation-link">Prev</a> <a href="./empty-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./classes.html" class="navigation-link">Back</a> <a href="./intrinsic-metafunctions.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./sequences.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> |
| <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./views.html" class="navigation-link">Views</a></td> |
| </tr></table><div class="header-separator"></div> |
| <div class="section" id="views"> |
| <h1><a class="toc-backref" href="./sequences.html#id1416">Views</a></h1> |
| <p id="label-sequences-views">A <em>view</em> is a sequence adaptor delivering an altered presentation of |
| one or more underlying sequences. Views are lazy, meaning that their |
| elements are only computed on demand. Similarly to the short-circuit |
| <a class="reference internal" href="./logical-operations.html">logical operations</a> and <a class="reference internal" href="./eval-if.html">eval_if</a>, views make it possible to avoid |
| premature errors and inefficiencies from computations whose results |
| will never be used. When approached with views in mind, many |
| algorithmic problems can be solved in a simpler, more conceptually |
| precise, more expressive way.</p> |
| <!-- Sequences/Views//empty_sequence --> |
| <ul class="toc simple" id="outline"> |
| <li><a class="reference internal" href="./empty-sequence.html" id="id1417">empty_sequence</a></li> |
| <li><a class="reference internal" href="./filter-view.html" id="id1418">filter_view</a></li> |
| <li><a class="reference internal" href="./iterator-range.html" id="id1419">iterator_range</a></li> |
| <li><a class="reference internal" href="./joint-view.html" id="id1420">joint_view</a></li> |
| <li><a class="reference internal" href="./single-view.html" id="id1421">single_view</a></li> |
| <li><a class="reference internal" href="./transform-view.html" id="id1422">transform_view</a></li> |
| <li><a class="reference internal" href="./zip-view.html" id="id1423">zip_view</a></li> |
| </ul> |
| </div> |
| |
| <div class="footer-separator"></div> |
| <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./string.html" class="navigation-link">Prev</a> <a href="./empty-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./classes.html" class="navigation-link">Back</a> <a href="./intrinsic-metafunctions.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./sequences.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> |
| <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 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> |
| </html> |
