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1 | <html> |
2 | <head> | |
3 | <title>BOOST_PP_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_ITERATION</b> macro expands to the iteration value of the current <i>file-iteration</i> depth. | |
9 | </div> | |
10 | <h4>Usage</h4> | |
11 | <div class="code"> | |
12 | <b>BOOST_PP_ITERATION</b>() | |
13 | </div> | |
14 | <h4>Remarks</h4> | |
15 | <div> | |
16 | This macro is only valid when a <i>file-iteration</i> is in progress. | |
17 | </div> | |
18 | <h4>Requirements</h4> | |
19 | <div> | |
20 | <b>Header:</b> <a href="../headers/iteration/iterate.html"><boost/preprocessor/iteration/iterate.hpp></a> | |
21 | </div> | |
22 | <h4>Sample Code</h4> | |
23 | <div><pre> | |
24 | // file.h | |
25 | #if !<a href="is_iterating.html">BOOST_PP_IS_ITERATING</a> | |
26 | ||
27 | #ifndef FILE_H_ | |
28 | #define FILE_H_ | |
29 | ||
30 | #include <<a href="../headers/iteration/iterate.html">boost/preprocessor/iteration/iterate.hpp</a>> | |
31 | ||
32 | #define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_1</a> (3, (1, 3, "file.h")) | |
33 | #include <a href="iterate.html">BOOST_PP_ITERATE</a>() | |
34 | ||
35 | #endif | |
36 | ||
37 | #elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 1 | |
38 | ||
39 | value == <a href="iteration.html">BOOST_PP_ITERATION</a>() | |
40 | ||
41 | #endif | |
42 | </pre></div> | |
43 | <hr size="1"> | |
44 | <div style="margin-left: 0px;"> | |
45 |