1<html> 2<head> 3 <title>BOOST_PP_REPEAT_FROM_TO_D</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_REPEAT_FROM_TO_D</b> macro represents a fast horizontal repetition construct. 9 It reenters <b>BOOST_PP_WHILE</b> with maximum efficiency. 10 </div> 11 <h4>Usage</h4> 12 <div class="code"> 13 <b>BOOST_PP_REPEAT_FROM_TO_D</b>(<i>d</i>, <i>first</i>, <i>last</i>, <i>macro</i>, <i>data</i>) 14 </div> 15 <h4>Arguments</h4> 16 <dl> 17 <dt>d</dt> 18 <dd> 19 The next available <b>BOOST_PP_WHILE</b> iteration. 20 </dd> 21 <dt>first</dt> 22 <dd> 23 The lower bound of the repetition. 24 Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>. 25 </dd> 26 <dt>last</dt> 27 <dd> 28 The upper bound of the repetition. 29 Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>. 30 </dd> 31 <dt>macro</dt> 32 <dd> 33 A ternary operation of the form <i>macro</i>(<i>z</i>, <i>n</i>, <i>data</i>). 34 This macro is expanded by <b>BOOST_PP_REPEAT</b> with the next available repetition depth, 35 the current repetition number, and the auxiliary <i>data</i> argument. 36 </dd> 37 <dt>data</dt> 38 <dd> 39 Auxiliary data passed to <i>macro</i>. 40 </dd> 41 </dl> 42 <h4>Remarks</h4> 43 <div> 44 This macro expands to the sequence: 45 <div> 46 <i>macro</i>(<i>z</i>, <i>first</i>, <i>data</i>) <i>macro</i>(<i>z</i>, <i>first</i> + <i>1</i>, <i>data</i>) ... <i>macro</i>(<i>z</i>, <i>last</i> - <i>1</i>, <i>data</i>) 47 </div> 48 </div> 49 <div> 50 The number of repetitions (i.e. <i>last</i> - <i>first</i>) must not exceed <b>BOOST_PP_LIMIT_REPEAT</b>. 51 </div> 52 <div> 53 The <i>z</i> value that is passed to <i>macro</i> represents the next available repetition dimension. 54 Other macros that have <b>_Z</b> suffix variants internally use <b>BOOST_PP_REPEAT</b>--for example, <b>BOOST_PP_ENUM_PARAMS</b> and <b>BOOST_PP_ENUM_PARAMS_Z</b>. 55 Using these <b>_Z</b> versions is not strictly necessary, but passing the <i>z</i> value (that is passed to <i>macro</i>) to these macros allows them to reenter <b>BOOST_PP_REPEAT</b> with maximum efficiency. 56 </div> 57 <div> 58 To directly use this <i>z</i> value, rather than simply passing it to another macro, see <b>BOOST_PP_REPEAT_FROM_TO_D_<i>z</i></b>. 59 </div> 60 <h4>See Also</h4> 61 <ul> 62 <li><a href="limit_mag.html">BOOST_PP_LIMIT_MAG</a></li> 63 <li><a href="limit_repeat.html">BOOST_PP_LIMIT_REPEAT</a></li> 64 <li><a href="repeat_from_to.html">BOOST_PP_REPEAT_FROM_TO</a></li> 65 <li><a href="repeat_from_to_d_z.html">BOOST_PP_REPEAT_FROM_TO_D_<i>z</i></a></li> 66 </ul> 67 <h4>Requirements</h4> 68 <div> 69 <b>Header:</b> <a href="../headers/repetition/repeat_from_to.html"><boost/preprocessor/repetition/repeat_from_to.hpp></a> 70 </div> 71 <hr size="1"> 72 <div style="margin-left: 0px;"> 73 <i>� Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i> 74 </br><i>� Copyright Paul Mensonides 2002</i> 75 </div> 76 <div style="margin-left: 0px;"> 77 <p><small>Distributed under the Boost Software License, Version 1.0. (See 78 accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or 79 copy at <a href= 80 "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p> 81 </div> 82</body> 83</html> 84