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<p>Core range functionality.
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Modules</h2></td></tr>
<tr class="memitem:group__group-range-concepts"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range-concepts.html">Range Concepts</a></td></tr>
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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_1semi__container.html">ranges::semi_container</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>semi_container</code> concept <code>std::array</code> is a <code>semi_container</code>, native arrays are not. <br /></td></tr>
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<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>container_</code> concept <code>std::vector</code> is a container, <code>std::array</code> is not. <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_1container.html">ranges::container</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>container</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_1reservable__.html">ranges::reservable_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>reservable_</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_1reservable.html">ranges::reservable</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>reservable</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_1reservable__with__assign__.html">ranges::reservable_with_assign_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>reservable_with_assign_</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_1reservable__with__assign.html">ranges::reservable_with_assign</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>reservable_with_assign</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_1random__access__reservable.html">ranges::random_access_reservable</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>random_access_reservable</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_1lvalue__container__like__.html">ranges::lvalue_container_like_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>lvalue_container_like_</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_1lvalue__container__like.html">ranges::lvalue_container_like</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>lvalue_container_like</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_1erasable__range__.html">ranges::erasable_range_</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>erasable_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_1erasable__range.html">ranges::erasable_range</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <code>erasable_range</code> concept. <br /></td></tr>
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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_1at__fn.html">ranges::at_fn</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checked indexed range access. <a href="structranges_1_1at__fn.html#details">More...</a><br /></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_1back__fn.html">ranges::back_fn</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structranges_1_1dangling.html">ranges::dangling</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">A placeholder for an iterator or a sentinel into a range that may no longer be valid. <a href="structranges_1_1dangling.html#details">More...</a><br /></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_1front__fn.html">ranges::front_fn</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_1index__fn.html">ranges::index_fn</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unchecked indexed range access. <a href="structranges_1_1index__fn.html#details">More...</a><br /></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__cardinality.html">ranges::range_cardinality&lt; Rng, Void &gt;</a></td></tr>
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Typedefs</h2></td></tr>
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template&lt;typename I , typename S &gt; </td></tr>
<tr class="memitem:ga35f16ad33883a0e5cca56a91dab1381b"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::common_iterator_t</b> = <a class="el" href="group__logical.html#ga9fbf879d37e7406c5f3c026e6ed37b59">meta::conditional_t</a>&lt; std::is_same&lt; I, S &gt;::value, I, detail::common_iterator_impl_t&lt; I, S &gt; &gt;</td></tr>
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template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga6576a12f1d598b4a262e13b7f5a5486a"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_common_iterator_t</b> = common_iterator_t&lt; iterator_t&lt; Rng &gt;, sentinel_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:ga6576a12f1d598b4a262e13b7f5a5486a"><td class="memSeparator" colspan="2">&#160;</td></tr>
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template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga311aa71e4a487dad62b7b9114bfdcab6"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_common_reference_t</b> = iter_common_reference_t&lt; iterator_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:ga311aa71e4a487dad62b7b9114bfdcab6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae0fb522b45b91df5dd3f18044908096f"><td class="memTemplParams" colspan="2"><a id="gae0fb522b45b91df5dd3f18044908096f" name="gae0fb522b45b91df5dd3f18044908096f"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:gae0fb522b45b91df5dd3f18044908096f"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_difference_t</b> = iter_difference_t&lt; iterator_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:gae0fb522b45b91df5dd3f18044908096f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga55960f2d90da8a3d53f3a7795a38c138"><td class="memTemplParams" colspan="2"><a id="ga55960f2d90da8a3d53f3a7795a38c138" name="ga55960f2d90da8a3d53f3a7795a38c138"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga55960f2d90da8a3d53f3a7795a38c138"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_reference_t</b> = iter_reference_t&lt; iterator_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:ga55960f2d90da8a3d53f3a7795a38c138"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaadc92259a1291051a8efee7ca01168ff"><td class="memTemplParams" colspan="2"><a id="gaadc92259a1291051a8efee7ca01168ff" name="gaadc92259a1291051a8efee7ca01168ff"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:gaadc92259a1291051a8efee7ca01168ff"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_rvalue_reference_t</b> = iter_rvalue_reference_t&lt; iterator_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:gaadc92259a1291051a8efee7ca01168ff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga452bee8edf60d8b7cbfcfd1d31236365"><td class="memTemplParams" colspan="2"><a id="ga452bee8edf60d8b7cbfcfd1d31236365" name="ga452bee8edf60d8b7cbfcfd1d31236365"></a>
template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga452bee8edf60d8b7cbfcfd1d31236365"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_size_t</b> = decltype(ranges::size(std::declval&lt; Rng &amp; &gt;()))</td></tr>
<tr class="separator:ga452bee8edf60d8b7cbfcfd1d31236365"><td class="memSeparator" colspan="2">&#160;</td></tr>
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template&lt;typename Rng &gt; </td></tr>
<tr class="memitem:ga57c2982ec1d7bce36db16bde42612dff"><td class="memTemplItemLeft" align="right" valign="top">using&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::range_value_t</b> = iter_value_t&lt; iterator_t&lt; Rng &gt; &gt;</td></tr>
<tr class="separator:ga57c2982ec1d7bce36db16bde42612dff"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga698d78f9b587a09e6c4ac1ef683d2b18"><td class="memTemplParams" colspan="2">template&lt;template&lt; typename... &gt; class ContT&gt; </td></tr>
<tr class="memitem:ga698d78f9b587a09e6c4ac1ef683d2b18"><td class="memTemplItemLeft" align="right" valign="top">auto&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga698d78f9b587a09e6c4ac1ef683d2b18">ranges::to</a> () -&gt; detail::to_container_fn&lt; detail::from_range&lt; ContT &gt; &gt;</td></tr>
<tr class="memdesc:ga698d78f9b587a09e6c4ac1ef683d2b18"><td class="mdescLeft">&#160;</td><td class="mdescRight">For initializing a container of the specified type with the elements of an Range. <a href="group__group-range.html#ga698d78f9b587a09e6c4ac1ef683d2b18">More...</a><br /></td></tr>
<tr class="separator:ga698d78f9b587a09e6c4ac1ef683d2b18"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga4b8388d5701e14a858a98eff3062ce75"><td class="memTemplParams" colspan="2"><a id="ga4b8388d5701e14a858a98eff3062ce75" name="ga4b8388d5701e14a858a98eff3062ce75"></a>
template&lt;template&lt; typename... &gt; class ContT, typename Rng , typename C = meta::invoke&lt;detail::from_range&lt;ContT&gt;, Rng&gt;&gt; <br />
requires range&lt;Rng&gt; &amp;&amp; detail::convertible_to_cont&lt;Rng, C&gt;</td></tr>
<tr class="memitem:ga4b8388d5701e14a858a98eff3062ce75"><td class="memTemplItemLeft" align="right" valign="top">auto&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::to</b> (Rng &amp;&amp;rng) -&gt; C</td></tr>
<tr class="memdesc:ga4b8388d5701e14a858a98eff3062ce75"><td class="mdescLeft">&#160;</td><td class="mdescRight">This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. <br /></td></tr>
<tr class="separator:ga4b8388d5701e14a858a98eff3062ce75"><td class="memSeparator" colspan="2">&#160;</td></tr>
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template&lt;typename Cont , typename Rng &gt; <br />
requires range&lt;Rng&gt; &amp;&amp; detail::convertible_to_cont&lt;Rng, Cont&gt;</td></tr>
<tr class="memitem:ga15c5c1eb89b9c2ed8294d7c0d3e5c543"><td class="memTemplItemLeft" align="right" valign="top">auto&#160;</td><td class="memTemplItemRight" valign="bottom"><b>ranges::to</b> (Rng &amp;&amp;rng) -&gt; Cont</td></tr>
<tr class="memdesc:ga15c5c1eb89b9c2ed8294d7c0d3e5c543"><td class="mdescLeft">&#160;</td><td class="mdescRight">This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. <br /></td></tr>
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Variables</h2></td></tr>
<tr class="memitem:ga0efca9ce24e0d51e02eea34082678e53"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="structranges_1_1at__fn.html">at_fn</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga0efca9ce24e0d51e02eea34082678e53">ranges::at</a> {}</td></tr>
<tr class="memdesc:ga0efca9ce24e0d51e02eea34082678e53"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checked indexed range access. <a href="group__group-range.html#ga0efca9ce24e0d51e02eea34082678e53">More...</a><br /></td></tr>
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<tr class="memitem:gadb5d99cd1ed6afb3c5735265f81a450e"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="structranges_1_1back__fn.html">back_fn</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#gadb5d99cd1ed6afb3c5735265f81a450e">ranges::back</a> {}</td></tr>
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<tr class="memitem:ga446b20253a26c93ef3004fcbfcbf3ec3"><td class="memItemLeft" align="right" valign="top">constexpr _begin_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga446b20253a26c93ef3004fcbfcbf3ec3">ranges::begin</a> {}</td></tr>
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<tr class="memitem:ga8dacb30d01871a666d9bb02d33530da9"><td class="memItemLeft" align="right" valign="top">constexpr _cbegin_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga8dacb30d01871a666d9bb02d33530da9">ranges::cbegin</a> {}</td></tr>
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<tr class="memitem:ga1c3359d1155f499d6a766f0b31c76b06"><td class="memItemLeft" align="right" valign="top">constexpr _cdata_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga1c3359d1155f499d6a766f0b31c76b06">ranges::cdata</a> {}</td></tr>
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<tr class="memitem:gaef3de204c8e48b13ef770a77ab7f0c89"><td class="memItemLeft" align="right" valign="top">constexpr _cend_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#gaef3de204c8e48b13ef770a77ab7f0c89">ranges::cend</a> {}</td></tr>
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<tr class="memitem:ga77a2be5a9ab4b5f662866ec619a5bec7"><td class="memItemLeft" align="right" valign="top">constexpr _crbegin_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga77a2be5a9ab4b5f662866ec619a5bec7">ranges::crbegin</a> {}</td></tr>
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<tr class="memitem:gabec3e854e6186c4bc6f1d365bfaabb0a"><td class="memItemLeft" align="right" valign="top">constexpr _crend_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#gabec3e854e6186c4bc6f1d365bfaabb0a">ranges::crend</a> {}</td></tr>
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<tr class="memitem:gaa6d2e35ad946792475b84f985784e3e4"><td class="memItemLeft" align="right" valign="top">constexpr _empty_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#gaa6d2e35ad946792475b84f985784e3e4">ranges::empty</a> {}</td></tr>
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<tr class="memitem:ga80d92c391f5b5c0a50156af5f9c9d8c7"><td class="memItemLeft" align="right" valign="top">constexpr _end_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga80d92c391f5b5c0a50156af5f9c9d8c7">ranges::end</a> {}</td></tr>
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<tr class="memitem:ga04fe2b749aefc72f4b7f0e955be3c5a0"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="structranges_1_1front__fn.html">front_fn</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga04fe2b749aefc72f4b7f0e955be3c5a0">ranges::front</a> {}</td></tr>
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<tr class="memitem:ga41b7ab1260f190082298c0f917659531"><td class="memItemLeft" align="right" valign="top">constexpr <a class="el" href="structranges_1_1index__fn.html">index_fn</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga41b7ab1260f190082298c0f917659531">ranges::index</a> {}</td></tr>
<tr class="memdesc:ga41b7ab1260f190082298c0f917659531"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unchecked indexed range access. <a href="group__group-range.html#ga41b7ab1260f190082298c0f917659531">More...</a><br /></td></tr>
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<tr class="memitem:ga404b782687899283f0a7c4f432954604"><td class="memItemLeft" align="right" valign="top">constexpr _rbegin_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga404b782687899283f0a7c4f432954604">ranges::rbegin</a> {}</td></tr>
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<tr class="memitem:ga2da42ee2c87481f8e8e62d7fb4d1a850"><td class="memItemLeft" align="right" valign="top">constexpr _rend_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga2da42ee2c87481f8e8e62d7fb4d1a850">ranges::rend</a> {}</td></tr>
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<tr class="memitem:ga4e6d035b8bc656ea3435ccb106f4000b"><td class="memItemLeft" align="right" valign="top">constexpr _size_::fn&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-range.html#ga4e6d035b8bc656ea3435ccb106f4000b">ranges::size</a> {}</td></tr>
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constexpr detail::to_container_fn&lt; detail::from_range&lt; std::vector &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>ranges::to_vector</b> {}</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p >Core range functionality. </p>
<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga698d78f9b587a09e6c4ac1ef683d2b18">&#9670;&nbsp;</a></span>to()</h2>
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template&lt;template&lt; typename... &gt; class ContT&gt; </div>
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<td> -&gt; detail::to_container_fn&lt;detail::from_range&lt;ContT&gt;&gt;
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<p><code>#include &lt;<a class="el" href="conversion_8hpp.html">range/v3/range/conversion.hpp</a>&gt;</code></p>
<p>For initializing a container of the specified type with the elements of an Range. </p>
<p >This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. </p>
<p class="reference">References <a class="el" href="group__group-range.html#ga698d78f9b587a09e6c4ac1ef683d2b18">ranges::to()</a>.</p>
<p class="reference">Referenced by <a class="el" href="group__group-range.html#ga698d78f9b587a09e6c4ac1ef683d2b18">ranges::to()</a>.</p>
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<h2 class="groupheader">Variable Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0efca9ce24e0d51e02eea34082678e53">&#9670;&nbsp;</a></span>at</h2>
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<td class="memname">constexpr <a class="el" href="structranges_1_1at__fn.html">at_fn</a> ranges::at {}</td>
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<p><code>#include &lt;<a class="el" href="range_2operations_8hpp.html">range/v3/range/operations.hpp</a>&gt;</code></p>
<p>Checked indexed range access. </p>
<dl class="section see"><dt>See also</dt><dd><code><a class="el" href="structranges_1_1at__fn.html" title="Checked indexed range access.">at_fn</a></code> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gadb5d99cd1ed6afb3c5735265f81a450e">&#9670;&nbsp;</a></span>back</h2>
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<td class="memname">constexpr <a class="el" href="structranges_1_1back__fn.html">back_fn</a> ranges::back {}</td>
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<p><code>#include &lt;<a class="el" href="range_2operations_8hpp.html">range/v3/range/operations.hpp</a>&gt;</code></p>
<dl class="section see"><dt>See also</dt><dd><code><a class="el" href="structranges_1_1back__fn.html">back_fn</a></code> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga446b20253a26c93ef3004fcbfcbf3ec3">&#9670;&nbsp;</a></span>begin</h2>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd><code>r</code>, if <code>r</code> is an array. Otherwise, <code><a class="el" href="group__group-range.html#ga446b20253a26c93ef3004fcbfcbf3ec3">r.begin()</a></code> if that expression is well-formed and returns an input_or_output_iterator. Otherwise, <code>begin(r)</code> if that expression returns an input_or_output_iterator. </dd></dl>
<p class="reference">Referenced by <a class="el" href="structranges_1_1view__interface.html#a7549d3841a72dc74436cd48e4418cb6c">ranges::view_interface&lt; Derived, Cardinality &gt;::empty()</a>, and <a class="el" href="group__group-algorithms.html#ga6768218151c3be2b712fa85dacc6fbad">ranges::sample()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga8dacb30d01871a666d9bb02d33530da9">&#9670;&nbsp;</a></span>cbegin</h2>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd>The result of calling <code>ranges::begin</code> with a const-qualified reference to r. </dd></dl>
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<p><code>#include &lt;<a class="el" href="primitives_8hpp.html">range/v3/range/primitives.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd>The result of calling <code>ranges::data</code> with a const-qualified (lvalue or rvalue) reference to <code>r</code>. </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd>The result of calling <code>ranges::end</code> with a const-qualified reference to r. </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd>The result of calling <code>ranges::rbegin</code> with a const-qualified reference to r. </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
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<dl class="section return"><dt>Returns</dt><dd>The result of calling <code>ranges::rend</code> with a const-qualified reference to r. </dd></dl>
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<p><code>#include &lt;<a class="el" href="primitives_8hpp.html">range/v3/range/primitives.hpp</a>&gt;</code></p>
<dl class="section return"><dt>Returns</dt><dd>true if and only if range contains no elements. </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd><code>r+size</code>(r), if <code>r</code> is an array. Otherwise, <code><a class="el" href="group__group-range.html#ga80d92c391f5b5c0a50156af5f9c9d8c7">r.end()</a></code> if that expression is well-formed and returns an input_or_output_iterator. Otherwise, <code>end(r)</code> if that expression returns an input_or_output_iterator. </dd></dl>
<p class="reference">Referenced by <a class="el" href="structranges_1_1view__interface.html#a7549d3841a72dc74436cd48e4418cb6c">ranges::view_interface&lt; Derived, Cardinality &gt;::empty()</a>, and <a class="el" href="group__group-algorithms.html#ga561d86a1fe77b317c0ce20f15922b902">ranges::sample()</a>.</p>
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<td class="memname">constexpr <a class="el" href="structranges_1_1front__fn.html">front_fn</a> ranges::front {}</td>
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<p><code>#include &lt;<a class="el" href="range_2operations_8hpp.html">range/v3/range/operations.hpp</a>&gt;</code></p>
<dl class="section see"><dt>See also</dt><dd><code><a class="el" href="structranges_1_1front__fn.html">front_fn</a></code> </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2operations_8hpp.html">range/v3/range/operations.hpp</a>&gt;</code></p>
<p>Unchecked indexed range access. </p>
<dl class="section see"><dt>See also</dt><dd><code><a class="el" href="structranges_1_1index__fn.html" title="Unchecked indexed range access.">index_fn</a></code> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga404b782687899283f0a7c4f432954604">&#9670;&nbsp;</a></span>rbegin</h2>
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<td class="memname">constexpr _rbegin_::fn ranges::rbegin {}</td>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">r</td><td></td></tr>
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<dl class="section return"><dt>Returns</dt><dd><code>make_reverse_iterator(r + ranges::size(r))</code> if r is an array. Otherwise, <code><a class="el" href="group__group-range.html#ga404b782687899283f0a7c4f432954604">r.rbegin()</a></code> if that expression is well-formed and returns an input_or_output_iterator. Otherwise, <code>make_reverse_iterator(ranges::end(r))</code> if <code>ranges::begin(r)</code> and <code>ranges::end(r)</code> are both well-formed and have the same type that satisfies <code>bidirectional_iterator</code>. </dd></dl>
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<p><code>#include &lt;<a class="el" href="range_2access_8hpp.html">range/v3/range/access.hpp</a>&gt;</code></p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">r</td><td></td></tr>
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<dl class="section return"><dt>Returns</dt><dd><code>make_reverse_iterator(r)</code> if <code>r</code> is an array. Otherwise, <code><a class="el" href="group__group-range.html#ga2da42ee2c87481f8e8e62d7fb4d1a850">r.rend()</a></code> if that expression is well-formed and returns a type that satisfies <code>sentinel_for&lt;S, I&gt;</code> where <code>I</code> is the type of <code>ranges::rbegin(r)</code>. Otherwise, <code>make_reverse_iterator(ranges::begin(r))</code> if <code>ranges::begin(r)</code> and <code>ranges::end(r)</code> are both well-formed and have the same type that satisfies <code>bidirectional_iterator</code>. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga4e6d035b8bc656ea3435ccb106f4000b">&#9670;&nbsp;</a></span>size</h2>
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<td class="memname">constexpr _size_::fn ranges::size {}</td>
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<p><code>#include &lt;<a class="el" href="primitives_8hpp.html">range/v3/range/primitives.hpp</a>&gt;</code></p>
<dl class="section return"><dt>Returns</dt><dd>For a given expression <code>E</code> of type <code>T</code>, <code>ranges::size(E)</code> is equivalent to:<ul>
<li><code>+extent_v&lt;T&gt;</code> if <code>T</code> is an array type.</li>
<li>Otherwise, <code>+<a class="el" href="group__group-range.html#ga4e6d035b8bc656ea3435ccb106f4000b">E.size()</a></code> if it is a valid expression and its type <code>I</code> models <code>integral</code> and <code>disable_sized_range&lt;std::remove_cvref_t&lt;T&gt;&gt;</code> is false.</li>
<li>Otherwise, <code>+size(E)</code> if it is a valid expression and its type <code>I</code> models <code>integral</code> with overload resolution performed in a context that includes the declaration: <div class="fragment"><div class="line"><span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt; <span class="keywordtype">void</span> <a class="code hl_typedef" href="group__list.html#ga82704ab3563d63460b7ac1be6c9876c9">size</a>(T&amp;&amp;) = <span class="keyword">delete</span>;</div>
<div class="ttc" id="agroup__list_html_ga82704ab3563d63460b7ac1be6c9876c9"><div class="ttname"><a href="group__list.html#ga82704ab3563d63460b7ac1be6c9876c9">meta::size</a></div><div class="ttdeci">meta::size_t&lt; L::size()&gt; size</div><div class="ttdoc">An integral constant wrapper that is the size of the meta::list L.</div><div class="ttdef"><b>Definition:</b> meta.hpp:1696</div></div>
</div><!-- fragment --> and does not include a declaration of <code>ranges::size</code>, and <code>disable_sized_range&lt;std::remove_cvref_t&lt;T&gt;&gt;</code> is false.</li>
<li>Otherwise, <code>static_cast&lt;U&gt;(ranges::end(E) - ranges::begin(E))</code> where <code>U</code> is <code>std::make_unsigned_t&lt;iter_difference_t&lt;iterator_t&lt;T&gt;&gt;&gt;</code> if <code>iter_difference_t&lt;iterator_t&lt;T&gt;&gt;</code> satisfies <code>integral</code> and <code>iter_difference_t&lt;iterator_t&lt;T&gt;&gt;</code> otherwise; except that <code>E</code> is evaluated once, if it is a valid expression and the types <code>I</code> and <code>S</code> of <code>ranges::begin(E)</code> and <code>ranges::end(E)</code> model <code>sized_sentinel_for&lt;S, I&gt;</code> and <code>forward_iterator&lt;I&gt;</code>.</li>
<li>Otherwise, <code>ranges::size(E)</code> is ill-formed. </li>
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