projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <title>BOOST_PP_FRAME_ITERATION</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_FRAME_ITERATION</b> macro expands to the iteration value of an absolute <i>file-iteration</i> depth. | |
| 9 | </div> | |
| 10 | <h4>Usage</h4> | |
| 11 | <div class="code"> | |
| 12 | <b>BOOST_PP_FRAME_ITERATION</b>(<i>i</i>) | |
| 13 | </div> | |
| 14 | <h4>Arguments</h4> | |
| 15 | <dl> | |
| 16 | <dt>i</dt> | |
| 17 | <dd> | |
| 18 | The absolute depth of the frame whose iteration value is to be retreived. | |
| 19 | Valid values range from <i>1</i> to <b>BOOST_PP_ITERATION_DEPTH</b>(). | |
| 20 | </dd> | |
| 21 | </dl> | |
| 22 | <h4>Remarks</h4> | |
| 23 | <div> | |
| 24 | This macro is only valid when a <i>file-iteration</i> is in progress. | |
| 25 | </div> | |
| 26 | <h4>Requirements</h4> | |
| 27 | <div> | |
| 28 | <b>Header:</b> <a href="../headers/iteration/iterate.html"><boost/preprocessor/iteration/iterate.hpp></a> | |
| 29 | </div> | |
| 30 | <h4>Sample Code</h4> | |
| 31 | <div><pre> | |
| 32 | // file.h | |
| 33 | #if !<a href="is_iterating.html">BOOST_PP_IS_ITERATING</a> | |
| 34 | ||
| 35 | #ifndef FILE_H_ | |
| 36 | #define FILE_H_ | |
| 37 | ||
| 38 | #include <<a href="../headers/iteration/iterate.html">boost/preprocessor/iteration/iterate.hpp</a>> | |
| 39 | ||
| 40 | #define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_1</a> (3, (1, 10, "file.h")) | |
| 41 | #include <a href="iterate.html">BOOST_PP_ITERATE</a>() | |
| 42 | ||
| 43 | #endif | |
| 44 | ||
| 45 | #elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 1 | |
| 46 | ||
| 47 | -- | |
| 48 | #define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_2</a> \ | |
| 49 | (3, (1, <a href="iteration.html">BOOST_PP_ITERATION</a>(), "file.h")) \ | |
| 50 | /**/ | |
| 51 | ||
| 52 | #include <a href="iterate.html">BOOST_PP_ITERATE</a>() | |
| 53 | ||
| 54 | #else | |
| 55 | ||
| 56 | outer: <a href="frame_iteration.html">BOOST_PP_FRAME_ITERATION</a>(1) | |
| 57 | inner: <a href="frame_iteration.html">BOOST_PP_FRAME_ITERATION</a>(2) | |
| 58 | ||
| 59 | #endif | |
| 60 | </pre></div> | |
| 61 | <hr size="1"> | |
| 62 | <div style="margin-left: 0px;"> | |
| 63 |