projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <title>BOOST_PP_BITXOR</title> | |
| 4 | <link rel="stylesheet" type="text/css" href="../styles.css"> | |
| 5 | ||
| 6 | </head> | |
| 7 | <body> | |
| 8 | <div style="margin-left: 0px;"> | |
| 9 | The <b>BOOST_PP_BITXOR</b> macro expands to the bitwise <i>XOR</i> of its operands. | |
| 10 | </div> | |
| 11 | <h4>Usage</h4> | |
| 12 | <div class="code"> | |
| 13 | <b>BOOST_PP_BITXOR</b>(<i>x</i>, <i>y</i>) | |
| 14 | </div> | |
| 15 | <h4>Arguments</h4> | |
| 16 | <dl> | |
| 17 | <dt>x</dt> | |
| 18 | <dd> | |
| 19 | The left operand of the operation. | |
| 20 | This value must expand to <i>0</i> or <i>1</i>. | |
| 21 | </dd> | |
| 22 | <dt>y</dt> | |
| 23 | <dd> | |
| 24 | The right operand of the operation. | |
| 25 | This value must expand to <i>0</i> or <i>1</i>. | |
| 26 | </dd> | |
| 27 | </dl> | |
| 28 | <h4>Remarks</h4> | |
| 29 | <div> | |
| 30 | If either <i>x</i> or <i>y</i> is <i>1</i> exclusively, this macro expands to <i>1</i>. | |
| 31 | Otherwise, it expands to <i>0</i>. | |
| 32 | </div> | |
| 33 | <div> | |
| 34 | This macro <i>does not</i> perform a boolean conversion on either operand before performing the bitwise <i>OR</i> operation. | |
| 35 | If that conversion is necessary, use <b>BOOST_PP_XOR</b> instead. | |
| 36 | </div> | |
| 37 | <h4>See Also</h4> | |
| 38 | <ul> | |
| 39 | <li><a href="xor.html">BOOST_PP_XOR</a></li> | |
| 40 | </ul> | |
| 41 | <h4>Requirements</h4> | |
| 42 | <div> | |
| 43 | <b>Header:</b> <a href="../headers/logical/bitxor.html"><boost/preprocessor/logical/bitxor.hpp></a> | |
| 44 | </div> | |
| 45 | <h4>Sample Code</h4> | |
| 46 | <div><pre> | |
| 47 | #include <<a href="../headers/logical/bitxor.html">boost/preprocessor/logical/bitxor.hpp</a>> | |
| 48 | ||
| 49 | <a href="bitxor.html">BOOST_PP_BITXOR</a>(0, 0) // expands to 0 | |
| 50 | <a href="bitxor.html">BOOST_PP_BITXOR</a>(0, 1) // expands to 1 | |
| 51 | <a href="bitxor.html">BOOST_PP_BITXOR</a>(1, 0) // expands to 1 | |
| 52 | <a href="bitxor.html">BOOST_PP_BITXOR</a>(1, 1) // expands to 0 | |
| 53 | </pre></div> | |
| 54 | <hr size="1"> | |
| 55 | <div style="margin-left: 0px;"> | |
| 56 |