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| <p> |
| The Boost type-traits library contains a set of very specific traits classes, |
| each of which encapsulate a single trait from the C++ type system; for example, |
| is a type a pointer or a reference type? Or does a type have a trivial constructor, |
| or a const-qualifier? |
| </p> |
| <p> |
| The type-traits classes share a unified design: each class inherits from the |
| type <a class="link" href="reference/integral_constant.html" title="integral_constant">true_type</a> |
| if the type has the specified property and inherits from <a class="link" href="reference/integral_constant.html" title="integral_constant">false_type</a> |
| otherwise. |
| </p> |
| <p> |
| The type-traits library also contains a set of classes that perform a specific |
| transformation on a type; for example, they can remove a top-level const or |
| volatile qualifier from a type. Each class that performs a transformation defines |
| a single typedef-member <code class="computeroutput"><span class="identifier">type</span></code> |
| that is the result of the transformation. |
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| <td align="right"><div class="copyright-footer">Copyright © 2000, 2006 Adobe Systems Inc, David Abrahams, |
| Steve Cleary, Beman Dawes, Aleksey Gurtovoy, Howard Hinnant, Jesse Jones, Mat |
| Marcus, Itay Maman, John Maddock, Alexander Nasonov, Thorsten Ottosen, Robert |
| Ramey and Jeremy Siek<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
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