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7 | <title>The MPL Reference Manual: iterator_range</title> |
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13 | </tr></table><div class="header-separator"></div> |
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14 | <div class="section" id="iterator-range"> |
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15 | <h1><a class="toc-backref" href="./views.html#id347" name="iterator-range">iterator_range</a></h1> |
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16 | <div class="section" id="iterator-synopsis"> |
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17 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> |
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18 | <pre class="literal-block"> |
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19 | template< |
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20 | typename First |
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21 | , typename Last |
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22 | > |
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23 | struct <a href="./iterator-range.html" class="identifier">iterator_range</a> |
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24 | { |
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25 | // <em>unspecified</em> |
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26 | // <em>...</em> |
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27 | }; |
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28 | </pre> |
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29 | </div> |
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30 | <div class="section" id="iterator-description"> |
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31 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
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32 | <p>A view into subset of sequence elements identified by a pair of iterators.</p> |
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33 | </div> |
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34 | <div class="section" id="iterator-header"> |
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35 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> |
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36 | <pre class="literal-block"> |
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37 | #include <<a href="../../../../boost/mpl/fold.hpp" class="header">boost/mpl/fold.hpp</a>> |
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38 | </pre> |
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39 | </div> |
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40 | <div class="section" id="iterator-model-of"> |
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41 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> |
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42 | <ul class="simple"> |
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43 | <li><a class="reference" href="./forward-sequence.html">Forward</a>, <a class="reference" href="./bidirectional-sequence.html">Bidirectional</a>, or <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>, depending on the category |
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44 | of the underlaying iterators.</li> |
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45 | </ul> |
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46 | </div> |
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47 | <div class="section" id="iterator-parameters"> |
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48 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> |
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49 | <table border="1" class="table"> |
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50 | <colgroup> |
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51 | <col width="15%" /> |
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52 | <col width="36%" /> |
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53 | <col width="48%" /> |
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54 | </colgroup> |
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55 | <thead valign="bottom"> |
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56 | <tr><th>Parameter</th> |
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57 | <th>Requirement</th> |
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58 | <th>Description</th> |
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59 | </tr> |
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60 | </thead> |
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61 | <tbody valign="top"> |
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62 | <tr><td><tt class="literal"><span class="pre">First</span></tt>, |
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63 | <tt class="literal"><span class="pre">Last</span></tt></td> |
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64 | <td><a class="reference" href="./forward-iterator.html">Forward Iterator</a></td> |
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65 | <td>Iterators identifying the view's boundaries.</td> |
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66 | </tr> |
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67 | </tbody> |
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68 | </table> |
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69 | </div> |
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70 | <div class="section" id="iterator-expression-semantics"> |
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71 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> |
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72 | <p>The semantics of an expression are defined only |
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73 | where they differ from, or are not defined in <a class="reference" href="./forward-sequence.html">Forward Sequence</a>.</p> |
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74 | <p>In the following table, <tt class="literal"><span class="pre">v</span></tt> is an instance of <tt class="literal"><span class="pre"><a href="./iterator-range.html" class="identifier">iterator_range</a></span></tt>, <tt class="literal"><span class="pre">first</span></tt> and <tt class="literal"><span class="pre">last</span></tt> are |
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75 | iterators into a <a class="reference" href="./forward-sequence.html">Forward Sequence</a>, and [<tt class="literal"><span class="pre">first</span></tt>, <tt class="literal"><span class="pre">last</span></tt>) form a valid range.</p> |
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76 | <table border="1" class="table"> |
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77 | <colgroup> |
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78 | <col width="44%" /> |
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79 | <col width="56%" /> |
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80 | </colgroup> |
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81 | <thead valign="bottom"> |
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82 | <tr><th>Expression</th> |
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83 | <th>Semantics</th> |
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84 | </tr> |
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85 | </thead> |
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86 | <tbody valign="top"> |
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87 | <tr><td><pre class="first last literal-block"> |
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88 | <a href="./iterator-range.html" class="identifier">iterator_range</a><first,last> |
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89 | <a href="./iterator-range.html" class="identifier">iterator_range</a><first,last>::type |
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90 | </pre> |
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91 | </td> |
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92 | <td>A lazy sequence all the elements in the range |
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93 | [<tt class="literal"><span class="pre">first</span></tt>, <tt class="literal"><span class="pre">last</span></tt>).</td> |
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94 | </tr> |
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95 | </tbody> |
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96 | </table> |
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97 | </div> |
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98 | <div class="section" id="iterator-example"> |
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99 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> |
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100 | <pre class="literal-block"> |
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101 | typedef <a href="./range-c.html" class="identifier">range_c</a><int,0,100> r; |
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102 | typedef advance_c< <a href="./begin.html" class="identifier">begin</a><r>::type,10 >::type first; |
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103 | typedef advance_c< <a href="./end.html" class="identifier">end</a><r>::type,-10 >::type last; |
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104 | |
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105 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< |
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106 | <a href="./iterator-range.html" class="identifier">iterator_range</a><first,last> |
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107 | , <a href="./range-c.html" class="identifier">range_c</a><int,10,90> |
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108 | > )); |
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109 | </pre> |
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110 | </div> |
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111 | <div class="section" id="iterator-see-also"> |
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112 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
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113 | <p><a class="reference" href="./sequences.html">Sequences</a>, <a class="reference" href="./views.html">Views</a>, <a class="refentry reference" href="./filter-view.html"><tt class="refentry literal"><span class="pre">filter_view</span></tt></a>, <a class="refentry reference" href="./transform-view.html"><tt class="refentry literal"><span class="pre">transform_view</span></tt></a>, <a class="refentry reference" href="./joint-view.html"><tt class="refentry literal"><span class="pre">joint_view</span></tt></a>, <a class="refentry reference" href="./zip-view.html"><tt class="refentry literal"><span class="pre">zip_view</span></tt></a>, <a class="refentry reference" href="./max-element.html"><tt class="refentry literal"><span class="pre">max_element</span></tt></a></p> |
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114 | <!-- modtime: November 10, 2004 04:39:09 +0000 --> |
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115 | <!-- Sequences/Views//joint_view --> |
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