1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Bitwise comparison</title> 5<link rel="stylesheet" href="../../../boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Boost.Test"> 8<link rel="up" href="../extended_comparison.html" title="Extended comparisons support"> 9<link rel="prev" href="collections.html" title="Collections comparison"> 10<link rel="next" href="../exception_correctness.html" title="Exception correctness"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="collections.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../extended_comparison.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../exception_correctness.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="boost_test.testing_tools.extended_comparison.bitwise"></a><a class="link" href="bitwise.html" title="Bitwise comparison">Bitwise 28 comparison</a> 29</h4></div></div></div> 30<div class="caution"><table border="0" summary="Caution"> 31<tr> 32<td rowspan="2" align="center" valign="top" width="25"><img alt="[Caution]" src="../../../../../../../doc/src/images/caution.png"></td> 33<th align="left">Caution</th> 34</tr> 35<tr><td align="left" valign="top"><p> 36 this feature is not available for non C++11 compilers. 37 </p></td></tr> 38</table></div> 39<p> 40 The manipulator <code class="computeroutput"><a class="link" href="../../../boost/test_tools/bitwise.html" title="Struct bitwise">boost::test_tools::bitwise</a></code> 41 can be provided to the <a class="link" href="../../utf_reference/testing_tool_ref/assertion_boost_test_universal_macro.html" title="BOOST_TEST"><code class="computeroutput"><span class="identifier">BOOST_TEST</span></code></a> macro in order to have 42 a bitwise comparison of the operands. In that case, the <span class="emphasis"><em>Unit 43 Test Framework</em></span> indicates the bit indices where the two operands 44 do not match. 45 </p> 46<h6> 47<a name="boost_test.testing_tools.extended_comparison.bitwise.h0"></a> 48 <span class="phrase"><a name="boost_test.testing_tools.extended_comparison.bitwise.example_descr"></a></span><a class="link" href="bitwise.html#boost_test.testing_tools.extended_comparison.bitwise.example_descr">Example: 49 BOOST_TEST bitwise comparison</a> 50 </h6> 51<div class="informaltable"><table class="table"> 52<colgroup><col></colgroup> 53<thead><tr><th> 54 <p> 55 Code 56 </p> 57 </th></tr></thead> 58<tbody><tr><td> 59<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_TEST_MODULE</span> <span class="identifier">boost_test_bitwise</span> 60<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">test</span><span class="special">/</span><span class="identifier">included</span><span class="special">/</span><span class="identifier">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 61<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">sstream</span><span class="special">></span> 62 63<span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test_bitwise</span><span class="special">)</span> 64<span class="special">{</span> 65 <span class="keyword">namespace</span> <span class="identifier">tt</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">test_tools</span><span class="special">;</span> 66 <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">0xAB</span><span class="special">;</span> 67 <span class="identifier">BOOST_TEST</span><span class="special">(</span> <span class="identifier">a</span> <span class="special">==</span> <span class="special">(</span><span class="identifier">a</span> <span class="special">&</span> <span class="special">~</span><span class="number">1</span><span class="special">),</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">bitwise</span><span class="special">()</span> <span class="special">);</span> 68 <span class="identifier">BOOST_TEST</span><span class="special">(</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span><span class="special">,</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">bitwise</span><span class="special">()</span> <span class="special">);</span> 69 <span class="identifier">BOOST_TEST</span><span class="special">(</span> <span class="identifier">a</span> <span class="special">!=</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span><span class="special">,</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">bitwise</span><span class="special">()</span> <span class="special">);</span> 70 <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">0x88</span><span class="special">;</span> 71 <span class="identifier">BOOST_TEST</span><span class="special">(</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</span><span class="special">,</span> <span class="identifier">tt</span><span class="special">::</span><span class="identifier">bitwise</span><span class="special">()</span> <span class="special">);</span> 72<span class="special">}</span> 73</pre> 74 </td></tr></tbody> 75</table></div> 76<div class="informaltable"><table class="table"> 77<colgroup><col></colgroup> 78<thead><tr><th> 79 <p> 80 Output 81 </p> 82 </th></tr></thead> 83<tbody><tr><td> 84<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="special">./</span><span class="identifier">boost_test_bitwise</span> <span class="special">--</span><span class="identifier">log_level</span><span class="special">=</span><span class="identifier">all</span> 85<span class="identifier">Running</span> <span class="number">1</span> <span class="identifier">test</span> <span class="keyword">case</span><span class="special">...</span> 86<span class="identifier">Entering</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_bitwise"</span> 87<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">13</span><span class="special">):</span> <span class="identifier">Entering</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_bitwise"</span> 88<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">17</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_bitwise"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">==</span> <span class="special">(</span><span class="identifier">a</span> <span class="special">&</span> <span class="special">~</span><span class="number">1</span><span class="special">)</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">171</span> <span class="special">!=</span> <span class="number">170</span><span class="special">].</span> <span class="identifier">Bitwise</span> <span class="identifier">comparison</span> <span class="identifier">failed</span> 89<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">0</span> 90<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">18</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_bitwise"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">171</span> <span class="special">!=</span> <span class="number">172</span><span class="special">].</span> <span class="identifier">Bitwise</span> <span class="identifier">comparison</span> <span class="identifier">failed</span> 91<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">0</span> 92<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">1</span> 93<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">2</span> 94<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">19</span><span class="special">):</span> <span class="identifier">info</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">!=</span> <span class="identifier">a</span> <span class="special">+</span> <span class="number">1</span> <span class="identifier">has</span> <span class="identifier">passed</span> 95<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">21</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test_bitwise"</span><span class="special">:</span> <span class="identifier">check</span> <span class="identifier">a</span> <span class="special">==</span> <span class="identifier">b</span> <span class="identifier">has</span> <span class="identifier">failed</span> <span class="special">[</span><span class="number">171</span> <span class="special">!=</span> <span class="number">136</span><span class="special">].</span> <span class="identifier">Bitwise</span> <span class="identifier">comparison</span> <span class="identifier">failed</span> 96<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">0</span> 97<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">1</span> 98<span class="identifier">Mismatch</span> <span class="identifier">at</span> <span class="identifier">position</span> <span class="number">5</span> 99<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">13</span><span class="special">):</span> <span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="keyword">case</span> <span class="string">"test_bitwise"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">627u</span><span class="identifier">s</span> 100<span class="identifier">Leaving</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_bitwise"</span><span class="special">;</span> <span class="identifier">testing</span> <span class="identifier">time</span><span class="special">:</span> <span class="number">772u</span><span class="identifier">s</span> 101 102<span class="special">***</span> <span class="number">3</span> <span class="identifier">failures</span> <span class="identifier">are</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"boost_test_bitwise"</span> 103</pre> 104 </td></tr></tbody> 105</table></div> 106<div class="note"><table border="0" summary="Note"> 107<tr> 108<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td> 109<th align="left">Note</th> 110</tr> 111<tr><td align="left" valign="top"><p> 112 the indices start at least significant bit. 113 </p></td></tr> 114</table></div> 115</div> 116<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 117<td align="left"></td> 118<td align="right"><div class="copyright-footer">Copyright © 2001-2020 Boost.Test contributors<p> 119 Distributed under the Boost Software License, Version 1.0. (See accompanying 120 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>) 121 </p> 122</div></td> 123</tr></table> 124<hr> 125<div class="spirit-nav"> 126<a accesskey="p" href="collections.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../extended_comparison.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../exception_correctness.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 127</div> 128</body> 129</html> 130
