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<div class="headertitle"><div class="title">Range Concepts<div class="ingroups"><a class="el" href="group__group-range.html">Range</a></div></div></div>
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<p>Range concepts.
<a href="#details">More...</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="concepts" name="concepts"></a>
Concepts</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1__range__.html">ranges::_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1range.html">ranges::range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1borrowed__range.html">ranges::borrowed_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>borrowed_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1output__range__.html">ranges::output_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>output_range_</code> concept. <br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1output__range.html">ranges::output_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>output_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1input__range__.html">ranges::input_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>input_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1input__range.html">ranges::input_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>input_range</code> concept. <br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1forward__range__.html">ranges::forward_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>forward_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1forward__range.html">ranges::forward_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>forward_range</code> concept. <br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1bidirectional__range__.html">ranges::bidirectional_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>bidirectional_range_</code> concept. <br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1bidirectional__range.html">ranges::bidirectional_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>bidirectional_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1random__access__range__.html">ranges::random_access_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>random_access_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1random__access__range.html">ranges::random_access_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>random_access_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1contiguous__range__.html">ranges::contiguous_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>contiguous_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1contiguous__range.html">ranges::contiguous_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>contiguous_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1common__range__.html">ranges::common_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>common_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1common__range.html">ranges::common_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>common_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1sized__range__.html">ranges::sized_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>sized_range_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1sized__range.html">ranges::sized_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>sized_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1view__.html">ranges::view_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>view_</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">concept &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="conceptranges_1_1viewable__range.html">ranges::viewable_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>viewable_range</code> concept. <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1bidirectional__range__tag.html">ranges::bidirectional_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1common__range__tag.html">ranges::common_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1contiguous__range__tag.html">ranges::contiguous_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1forward__range__tag.html">ranges::forward_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1input__range__tag.html">ranges::input_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1random__access__range__tag.html">ranges::random_access_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1range__tag.html">ranges::range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1sized__range__tag.html">ranges::sized_range_tag</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga3f8cf483a73c7128e5fb3f00d2d93687"><td class="memTemplParams" colspan="2"><a id="ga3f8cf483a73c7128e5fb3f00d2d93687" name="ga3f8cf483a73c7128e5fb3f00d2d93687"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga3f8cf483a73c7128e5fb3f00d2d93687"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::common_range_tag_of</b> = std::enable_if_t&lt; range&lt; Rng &gt;, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; common_range&lt; Rng &gt;, <a class="el" href="structranges_1_1common__range__tag.html">common_range_tag</a>, <a class="el" href="structranges_1_1range__tag.html">range_tag</a> &gt; &gt;</td></tr>
<tr class="separator:ga3f8cf483a73c7128e5fb3f00d2d93687"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7d5c0418312f001e5def5e56a8c78ec4"><td class="memTemplParams" colspan="2"><a id="ga7d5c0418312f001e5def5e56a8c78ec4" name="ga7d5c0418312f001e5def5e56a8c78ec4"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga7d5c0418312f001e5def5e56a8c78ec4"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_tag_of</b> = std::enable_if_t&lt; range&lt; Rng &gt;, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; contiguous_range&lt; Rng &gt;, <a class="el" href="structranges_1_1contiguous__range__tag.html">contiguous_range_tag</a>, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; random_access_range&lt; Rng &gt;, <a class="el" href="structranges_1_1random__access__range__tag.html">random_access_range_tag</a>, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; bidirectional_range&lt; Rng &gt;, <a class="el" href="structranges_1_1bidirectional__range__tag.html">bidirectional_range_tag</a>, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; forward_range&lt; Rng &gt;, <a class="el" href="structranges_1_1forward__range__tag.html">forward_range_tag</a>, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; input_range&lt; Rng &gt;, <a class="el" href="structranges_1_1input__range__tag.html">input_range_tag</a>, <a class="el" href="structranges_1_1range__tag.html">range_tag</a> &gt; &gt; &gt; &gt; &gt; &gt;</td></tr>
<tr class="separator:ga7d5c0418312f001e5def5e56a8c78ec4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga59e088887889a7e69a73b7763acf0409"><td class="memTemplParams" colspan="2"><a id="ga59e088887889a7e69a73b7763acf0409" name="ga59e088887889a7e69a73b7763acf0409"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga59e088887889a7e69a73b7763acf0409"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::sized_range_tag_of</b> = std::enable_if_t&lt; range&lt; Rng &gt;, <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; sized_range&lt; Rng &gt;, <a class="el" href="structranges_1_1sized__range__tag.html">sized_range_tag</a>, <a class="el" href="structranges_1_1range__tag.html">range_tag</a> &gt; &gt;</td></tr>
<tr class="separator:ga59e088887889a7e69a73b7763acf0409"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="var-members" name="var-members"></a>
Variables</h2></td></tr>
<tr class="memitem:ga400098e3141e83fc3b9d9cec18ed4ffd"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
<tr class="memitem:ga400098e3141e83fc3b9d9cec18ed4ffd"><td class="memTemplItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group__group-range-concepts.html#ga400098e3141e83fc3b9d9cec18ed4ffd">ranges::enable_view</a></td></tr>
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<tr class="memitem:gaab137351536c70d1ae1953f5f350be86"><td class="memTemplParams" colspan="2"><a id="gaab137351536c70d1ae1953f5f350be86" name="gaab137351536c70d1ae1953f5f350be86"></a>
template&lt;typename R &gt; </td></tr>
<tr class="memitem:gaab137351536c70d1ae1953f5f350be86"><td class="memTemplItemLeft" align="right" valign="top">constexpr bool&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::safe_range</b> = borrowed_range&lt;R&gt;</td></tr>
<tr class="separator:gaab137351536c70d1ae1953f5f350be86"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p >Range concepts. </p>
<h2 class="groupheader">Variable Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga400098e3141e83fc3b9d9cec18ed4ffd">&#9670;&nbsp;</a></span>enable_view</h2>
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template&lt;typename T &gt; </div>
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<td class="memname">constexpr bool ranges::enable_view</td>
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<span class="mlabels"><span class="mlabel">constexpr</span></span> </td>
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<p><code>#include &lt;<a class="el" href="range_2v3_2range_2concepts_8hpp.html">range/v3/range/concepts.hpp</a>&gt;</code></p>
<b>Initial value:</b><div class="fragment"><div class="line">=</div>
<div class="line"> ext::enable_view&lt;T&gt;::value</div>
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