projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <title>BOOST_PP_COMPL</title> | |
| 4 | <link rel="stylesheet" type="text/css" href="../styles.css"> | |
| 5 | </head> | |
| 6 | <body> | |
| 7 | <div style="margin-left: 0px;"> | |
| 8 | The <b>BOOST_PP_COMPL</b> macro performs a bitwise inversion (bitwise <i>NOT</i> or one's complement) on its operand. | |
| 9 | </div> | |
| 10 | <h4>Usage</h4> | |
| 11 | <div class="code"> | |
| 12 | <b>BOOST_PP_COMPL</b>(<i>x</i>) | |
| 13 | </div> | |
| 14 | <h4>Arguments</h4> | |
| 15 | <dl> | |
| 16 | <dt>x</dt> | |
| 17 | <dd> | |
| 18 | The value to be converted. | |
| 19 | This value must expand to <i>0</i> or <i>1</i>. | |
| 20 | </dd> | |
| 21 | </dl> | |
| 22 | <h4>Remarks</h4> | |
| 23 | <div> | |
| 24 | If <i>x</i> is <i>0</i>, this macro expands to <i>1</i>. | |
| 25 | If <i>x</i> is <i>1</i>, this it expands to <i>0</i>. | |
| 26 | </div> | |
| 27 | <div> | |
| 28 | This macro <i>does not</i> perform a boolean conversion on its operand before performing the inversion <i>OR</i> operation. | |
| 29 | If that conversion is necessary, use <b>BOOST_PP_NOT</b> instead. | |
| 30 | </div> | |
| 31 | <h4>See Also</h4> | |
| 32 | <ul> | |
| 33 | <li><a href="not.html">BOOST_PP_NOT</a></li> | |
| 34 | </ul> | |
| 35 | <h4>Requirements</h4> | |
| 36 | <div> | |
| 37 | <b>Header:</b> <a href="../headers/logical/compl.html"><boost/preprocessor/logical/compl.hpp></a> | |
| 38 | </div> | |
| 39 | <h4>Sample Code</h4> | |
| 40 | <div><pre> | |
| 41 | #include <<a href="../headers/logical/compl.html">boost/preprocessor/logical/compl.hpp</a>> | |
| 42 | ||
| 43 | <a href="compl.html">BOOST_PP_COMPL</a>(1) // expands to 0 | |
| 44 | <a href="compl.html">BOOST_PP_COMPL</a>(0) // expands to 1 | |
| 45 | </pre></div> | |
| 46 | <hr size="1"> | |
| 47 | <div style="margin-left: 0px;"> | |
| 48 |