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  8. <link rel="up" href="../i_o.html" title="I/O">
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  25. <div class="section">
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  26. <div class="titlepage"><div><div><h5 class="title">
    27. 

  27. <a name="fusion.sequence.operator.i_o.in"></a><a class="link" href="in.html" title="in">in</a>
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  28. </h5></div></div></div>
    29. 

  29. <a name="fusion.sequence.operator.i_o.in.description"></a><h6>
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  30. <a name="id862337"></a>
    31. 

  31.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.description">Description</a>
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  32.           </h6>
    33. 

  33. <p>
    34. 

  34.             Read a <a class="link" href="../../../sequence.html" title="Sequence">Sequence</a> from an input
    35. 

  35.             stream.
    36. 

  36.           </p>
    37. 

  37. <a name="fusion.sequence.operator.i_o.in.synopsis"></a><h6>
    38. 

  38. <a name="id862358"></a>
    39. 

  39.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.synopsis">Synopsis</a>
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  40.           </h6>
    41. 

  41. <pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">IStream</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
    42. 

  42. <span class="identifier">IStream</span><span class="special">&amp;</span>
    43. 

  43. <span class="keyword">operator</span><span class="special">&gt;&gt;(</span><span class="identifier">IStream</span><span class="special">&amp;</span> <span class="identifier">is</span><span class="special">,</span> <span class="identifier">Sequence</span><span class="special">&amp;</span> <span class="identifier">seq</span><span class="special">);</span>
    44. 

  44. </pre>
    45. 

  45. <a name="fusion.sequence.operator.i_o.in.parameters"></a><h6>
    46. 

  46. <a name="id862459"></a>
    47. 

  47.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.parameters">Parameters</a>
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  48.           </h6>
    49. 

  49. <div class="informaltable"><table class="table">
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  50. <colgroup>
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  51. <col>
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  52. <col>
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  53. <col>
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  54. </colgroup>
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  55. <thead><tr>
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  56. <th>
    57. 

  57.                     <p>
    58. 

  58.                       Parameter
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  59.                     </p>
    60. 

  60.                   </th>
    61. 

  61. <th>
    62. 

  62.                     <p>
    63. 

  63.                       Requirement
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  64.                     </p>
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  65.                   </th>
    66. 

  66. <th>
    67. 

  67.                     <p>
    68. 

  68.                       Description
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  69.                     </p>
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  70.                   </th>
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  71. </tr></thead>
    72. 

  72. <tbody>
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  73. <tr>
    74. 

  74. <td>
    75. 

  75.                     <p>
    76. 

  76.                       is
    77. 

  77.                     </p>
    78. 

  78.                   </td>
    79. 

  79. <td>
    80. 

  80.                     <p>
    81. 

  81.                       An input stream.
    82. 

  82.                     </p>
    83. 

  83.                   </td>
    84. 

  84. <td>
    85. 

  85.                     <p>
    86. 

  86.                       Stream to extract information from.
    87. 

  87.                     </p>
    88. 

  88.                   </td>
    89. 

  89. </tr>
    90. 

  90. <tr>
    91. 

  91. <td>
    92. 

  92.                     <p>
    93. 

  93.                       seq
    94. 

  94.                     </p>
    95. 

  95.                   </td>
    96. 

  96. <td>
    97. 

  97.                     <p>
    98. 

  98.                       A <a class="link" href="../../../sequence.html" title="Sequence">Sequence</a>.
    99. 

  99.                     </p>
    100. 

  100.                   </td>
    101. 

  101. <td>
    102. 

  102.                     <p>
    103. 

  103.                       The sequence to read.
    104. 

  104.                     </p>
    105. 

  105.                   </td>
    106. 

  106. </tr>
    107. 

  107. </tbody>
    108. 

  108. </table></div>
    109. 

  109. <a name="fusion.sequence.operator.i_o.in.expression_semantics"></a><h6>
    110. 

  110. <a name="id863663"></a>
    111. 

  111.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.expression_semantics">Expression
    112. 

  112.             Semantics</a>
    113. 

  113.           </h6>
    114. 

  114. <pre class="programlisting"><span class="identifier">is</span> <span class="special">&gt;&gt;</span> <span class="identifier">seq</span>
    115. 

  115. </pre>
    116. 

  116. <p>
    117. 

  117.             <span class="bold"><strong>Return type</strong></span>: IStream&amp;
    118. 

  118.           </p>
    119. 

  119. <p>
    120. 

  120.             <span class="bold"><strong>Semantics</strong></span>: For each element, <code class="computeroutput"><span class="identifier">e</span></code>, in sequence, <code class="computeroutput"><span class="identifier">seq</span></code>,
    121. 

  121.             call <code class="computeroutput"><span class="identifier">is</span> <span class="special">&gt;&gt;</span>
    122. 

  122.             <span class="identifier">e</span></code>.
    123. 

  123.           </p>
    124. 

  124. <a name="fusion.sequence.operator.i_o.in.header"></a><h6>
    125. 

  125. <a name="id863743"></a>
    126. 

  126.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.header">Header</a>
    127. 

  127.           </h6>
    128. 

  128. <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">sequence</span><span class="special">/</span><span class="identifier">io</span><span class="special">/</span><span class="identifier">in</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
    129. 

  129. <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">in</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
    130. 

  130. </pre>
    131. 

  131. <a name="fusion.sequence.operator.i_o.in.example"></a><h6>
    132. 

  132. <a name="id863858"></a>
    133. 

  133.             <a class="link" href="in.html#fusion.sequence.operator.i_o.in.example">Example</a>
    134. 

  134.           </h6>
    135. 

  135. <pre class="programlisting"><a class="link" href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">v</span><span class="special">;</span>
    136. 

  136. <span class="identifier">std</span><span class="special">::</span><span class="identifier">cin</span> <span class="special">&gt;&gt;</span> <span class="identifier">v</span><span class="special">;</span>
    137. 

  137. </pre>
    138. 

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    139. 

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  140. <td align="left"></td>
    141. 

  141. <td align="right"><div class="copyright-footer">Copyright &#169; 2001-2007 Joel de Guzman, Dan Marsden, Tobias
    142. 

  142.       Schwinger<p>
    143. 

  143.         Distributed under the Boost Software License, Version 1.0. (See accompanying
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  144.         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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