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| <h1 class="title">Writable Iterator Concept</h1> |
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| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
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| <p>A class or built-in type <tt class="docutils literal"><span class="pre">X</span></tt> models the <em>Writable Iterator</em> concept |
| if, in addition to <tt class="docutils literal"><span class="pre">X</span></tt> being Copy Constructible, the following |
| expressions are valid and respect the stated semantics. Writable |
| Iterators have an associated <em>set of value types</em>.</p> |
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| <tr><th class="head" colspan="3">Writable Iterator Requirements (in addition to Copy Constructible)</th> |
| </tr> |
| <tr><th class="head">Expression</th> |
| <th class="head">Return Type</th> |
| <th class="head">Precondition</th> |
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| <tr><td><tt class="docutils literal"><span class="pre">*a</span> <span class="pre">=</span> <span class="pre">o</span></tt></td> |
| <td> </td> |
| <td>pre: The type of <tt class="docutils literal"><span class="pre">o</span></tt> |
| is in the set of |
| value types of <tt class="docutils literal"><span class="pre">X</span></tt></td> |
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