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<div class="titlepage"><div><div><h3 class="title">
<a name="range.concepts.forward_range"></a><a class="link" href="forward_range.html" title="Forward Range">Forward Range</a>
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<a name="range.concepts.forward_range.notation"></a><h5>
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<a class="link" href="forward_range.html#range.concepts.forward_range.notation">Notation</a>
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<p>
<code class="computeroutput"><span class="identifier">X</span></code>
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<p>
A type that is a model of <a class="link" href="forward_range.html" title="Forward Range">Forward
Range</a>.
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<code class="computeroutput"><span class="identifier">a</span></code>
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Object of type X.
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<a name="range.concepts.forward_range.description"></a><h5>
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<a class="link" href="forward_range.html#range.concepts.forward_range.description">Description</a>
</h5>
<p>
A range <code class="computeroutput"><span class="identifier">X</span></code> where <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code> is a model of <a href="../../../../../../libs/iterator/doc/new-iter-concepts.html#forward-traversal-iterators-lib-forward-traversal-iterators" target="_top">Forward
Traversal Iterator</a>.
</p>
<a name="range.concepts.forward_range.refinement_of"></a><h5>
<a name="id761854"></a>
<a class="link" href="forward_range.html#range.concepts.forward_range.refinement_of">Refinement of</a>
</h5>
<p>
<a class="link" href="single_pass_range.html" title="Single Pass Range">Single Pass Range</a>
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<a name="range.concepts.forward_range.associated_types"></a><h5>
<a name="id761881"></a>
<a class="link" href="forward_range.html#range.concepts.forward_range.associated_types">Associated
types</a>
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Distance type
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<code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_difference</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code>
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<p>
A signed integral type used to represent the distance between two
of the Range's iterators. This type must be the same as the iterator's
distance type.
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Size type
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<code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_size</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code>
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An unsigned integral type that can represent any nonnegative value
of the Range's distance type.
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<a name="range.concepts.forward_range.see_also"></a><h5>
<a name="id762035"></a>
<a class="link" href="forward_range.html#range.concepts.forward_range.see_also">See also</a>
</h5>
<p>
<a class="link" href="../reference/concept_implementation/semantics/metafunctions.html" title="Metafunctions">Implementation
of metafunctions</a>
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<a class="link" href="../reference/concept_implementation/semantics/functions.html" title="Functions">Implementation
of functions</a>
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<td align="right"><div class="copyright-footer">Copyright © 2003 -2010 Thorsten Ottosen, Neil Groves<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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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