projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <title>BOOST_PP_SLOT</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_SLOT</b> macro retrieves a value previously evaluated by <b>BOOST_PP_ASSIGN_SLOT</b>. | |
| 9 | </div> | |
| 10 | <h4>Usage</h4> | |
| 11 | <div class="code"> | |
| 12 | <b>BOOST_PP_SLOT</b>(<i>i</i>) | |
| 13 | </div> | |
| 14 | <h4>Arguments</h4> | |
| 15 | <dl> | |
| 16 | <dt>i</dt> | |
| 17 | <dd> | |
| 18 | The <i>slot</i> index to be retrieved. | |
| 19 | This value must be in the range of <i>1</i> to <b>BOOST_PP_LIMIT_SLOT_COUNT</b>. | |
| 20 | </dd> | |
| 21 | </dl> | |
| 22 | <h4>Remarks</h4> | |
| 23 | <div> | |
| 24 | Prior to use, the <i>slot</i> at index <i>i</i> must have been assigned with <b>BOOST_PP_ASSIGN_SLOT</b>. | |
| 25 | </div> | |
| 26 | <h4>See Also</h4> | |
| 27 | <ul> | |
| 28 | <li><a href="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a></li> | |
| 29 | <li><a href="limit_slot_count.html">BOOST_PP_LIMIT_SLOT_COUNT</a></li> | |
| 30 | </ul> | |
| 31 | <h4>Requirements</h4> | |
| 32 | <div> | |
| 33 | <b>Header:</b> <a href="../headers/slot/slot.html"><boost/preprocessor/slot/slot.hpp></a> | |
| 34 | </div> | |
| 35 | <h4>Sample Code</h4> | |
| 36 | <div><pre> | |
| 37 | #include <<a href="../headers/slot/slot.html">boost/preprocessor/slot/slot.hpp</a>> | |
| 38 | ||
| 39 | #define X() 4 | |
| 40 | ||
| 41 | #define <a href="value.html">BOOST_PP_VALUE</a> 1 + 2 + 3 + X() | |
| 42 | #include <a href="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a>(1) | |
| 43 | ||
| 44 | #undef X | |
| 45 | ||
| 46 | <a href="slot.html">BOOST_PP_SLOT</a>(1) // expands to 10 | |
| 47 | </pre></div> | |
| 48 | <hr size="1"> | |
| 49 | <div style="margin-left: 0px;"> | |
| 50 |