libs/test/doc/html/boost_test/testing_tools/extended_comparison/bitwise.html

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  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">&lt;</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">&gt;</span>
  61 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">sstream</span><span class="special">&gt;</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">&amp;</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">&gt;</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">&amp;</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>
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