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| <font size="7">Timer Library<br> |
| Version 2</font> |
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| <td><a href="index.html">Timer Home</a> |
| <a href="cpu_timers.html">CPU timers</a> |
| <a href="original_timer.html">Original timers</a> |
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| <p>"How long does my C++ code take to run?"<p>The Boost Timer library |
| answers that question and does so portably, with as little as one #include and one |
| additional line of code.<p>The Boost Timer library has two distinct sets of |
| components:<ul> |
| <li>If you are new to the library, please go directly to the version 2 |
| <a href="cpu_timers.html">CPU timers</a> page.</li> |
| <li>If you are interested in |
| the original library, now deprecated, read on below.</li> |
| </ul> |
| <h2> |
| <a href="cpu_timers.html">CPU timers</a></h2> |
| <p>These version 2 components conform to current Boost practice:</p> |
| <ul> |
| <li>The interfaces and their semantics are the same across all platforms.</li> |
| <li>The internal implementation uses operating system specific APIs to achieve |
| higher precision and supply functionality not otherwise available. </li> |
| <li>The headers live in a sub-directory, <code><boost/timer/...></code>.</li> |
| <li>The content is in a sub-namespace, <code>boost::timer</code>.</li> |
| </ul> |
| <h2 dir="ltr"> |
| <a href="original_timer.html">Original timers</a></h2> |
| <p>These version 1 components are deprecated. They date from the earliest days |
| of Boost and do not conform to current Boost practice:</p> |
| <ul> |
| <li>The interfaces are the same across all platforms, but the semantics differ |
| according to platform. Wall-clock time is measured on Windows, while CPU time |
| is measured on POSIX-like systems.</li> |
| <li>The internal implementation uses only C/C++ standard library functions, so |
| cannot supply desirable precision and functionality.</li> |
| <li>The headers live in the main Boost header directory.</li> |
| <li>The content are in namespace <code>boost</code>.</li> |
| </ul> |
| <hr> |
| <p><font size="2">Revised: |
| <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B %Y" startspan -->07 October 2011<!--webbot bot="Timestamp" endspan i-checksum="32191" --></font></p> |
| |
| <p><font size="2">© Copyright Beman Dawes 2001, 2011</font></p> |
| |
| <p><font size="2">Distributed under the Boost Software License, Version 1.0. See |
| </font> |
| <a href="http://www.boost.org/LICENSE_1_0.txt"><font size="2">www.boost.org/LICENSE_1_0.txt</font></a></p> |
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