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| Views are sequences that do not actually contain data, but instead impart an |
| alternative presentation over the data from one or more underlying sequences. |
| Views are proxies. They provide an efficient yet purely functional way to work |
| on potentially expensive sequence operations. Views are inherently lazy. Their |
| elements are only computed on demand only when the elements of the underlying |
| sequence(s) are actually accessed. Views' lazy nature make them very cheap |
| to copy and be passed around by value. |
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| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</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">view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
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