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seq_elem.html

seq_elem.html 2.2 KB
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  1. <html>
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  2. <head>
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  3.         <title>BOOST_PP_SEQ_ELEM</title>
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  4. 		<link rel="stylesheet" type="text/css" href="../styles.css">
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  5. </head>
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  6. <body>
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  7. 		<div style="margin-left: 0px;">
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  8. 			The <b>BOOST_PP_SEQ_ELEM</b> macro extracts an element from a <i>seq</i>.
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  9. 		</div>
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  10. 		<h4>
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  11. 			Usage
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  12. 		</h4>
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  13. 		<div class="code">
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  14. 			<b>BOOST_PP_SEQ_ELEM</b>(<i>i</i>, <i>seq</i>)
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  15. 		</div>
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  16. 		<h4>
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  17. 			Arguments
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  18. 		</h4>
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  19. 		<dl>
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  20. 			<dt>i</dt>
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  21. 			<dd>
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  22. 				The zero-based index of the element to be extracted.
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  23. 			</dd>
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  24. 			<dt>seq</dt>
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  25. 			<dd>
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  26. 				The <i>seq</i> from which an element is to be extracted.
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  27. 			</dd>
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  28. 		</dl>
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  29. 		<h4>
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  30. 			Remarks
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  31. 		</h4>
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  32. 		<div>
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  33. 			The index <i>i</i> must be in the range of <i>0</i> to <b>BOOST_PP_SEQ_SIZE</b>(<i>seq</i>) 
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  34. 			- <i>1</i>.
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  35. 		</div>
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  36. 		<h4>
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  37. 			Requirements
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  38. 		</h4>
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  39. 		<div>
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  40. 			<b>Header:</b> &nbsp;<a href="../headers/seq/elem.html">&lt;boost/preprocessor/seq/elem.hpp&gt;</a>
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  41. 		</div>
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  42. 		<h4>
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  43. 			Sample Code
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  44. 		</h4>
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  45. 		<div>
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  46. 			<pre>#include &lt;<a href="../headers/seq/elem.html">boost/preprocessor/seq/elem.hpp</a>&gt;<br><br><a href="seq_elem.html">BOOST_PP_SEQ_ELEM</a>(1, (a)(b)(c)) // expands to b<br><br>#define SEQ \<br>   (0)(1)(2)(3)(4)(5)(6)(7)(8)(9) \<br>   (10)(11)(12)(13)(14)(15)(16)(17)(18)(19) \<br>   (20)(21)(22)(23)(24)(25)(26)(27)(28)(29) \<br>   (30)(31)(32)(33)(34)(35)(36)(37)(38)(39) \<br>   (40)(41)(42)(43)(44)(45)(46)(47)(48)(49) \<br>   (50)(51)(52)(53)(54)(55)(56)(57)(58)(59) \<br>   (60)(61)(62)(63)(64)(65)(66)(67)(68)(69) \<br>   (70)(71)(72)(73)(74)(75)(76)(77)(78)(79) \<br>   (80)(81)(82)(83)(84)(85)(86)(87)(88)(89) \<br>   (90)(91)(92)(93)(94)(95)(96)(97)(98)(99) \<br>   /**/<br><br><a href="seq_elem.html">BOOST_PP_SEQ_ELEM</a>(88, SEQ) // expands to 88<br></pre>
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  47. 		</div>
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  48. 	<hr size="1">
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  49. 	<div style="margin-left: 0px;">
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  50. 		<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
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  51. 		<br><i>© Copyright Paul Mensonides 2002</i>
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  52. 	</div>
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  53. 	<div style="margin-left: 0px;">
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  54. 		<p><small>Distributed under the Boost Software License, Version 1.0. (See
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  55. 		accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
    56. 

  56. 		copy at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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  57. 	</div>
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  58. </body>
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  59. </html>
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