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                <a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span><a class="srclink" href="../../src/abstutil/collections.rs.html#171-184" title="goto source code">[src]</a></span><span class="in-band">Function <a href="../index.html">abstutil</a>::<wbr><a href="index.html">collections</a>::<wbr><a class="fn" href="">retain_btreemap</a></span></h1><pre class="rust fn">pub fn retain_btreemap&lt;K:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, V, F:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>K, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>V) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;map: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/collections/btree/map/struct.BTreeMap.html" title="struct alloc::collections::btree::map::BTreeMap">BTreeMap</a>&lt;K, V&gt;, <br>&nbsp;&nbsp;&nbsp;&nbsp;keep: F<br>)</pre></section><section id="search" class="content hidden"></section><section class="footer"></section><script>window.rootPath = "../../";window.currentCrate = "abstutil";</script><script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html>
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-												deploy: 312a721e6389037c980df0de3c1478b15c6e5535

											
										
										
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+								                <a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span><a class="srclink" href="../../src/abstutil/collections.rs.html#171-184" title="goto source code">[src]</a></span><span class="in-band">Function <a href="../index.html">abstutil</a>::<wbr><a href="index.html">collections</a>::<wbr><a class="fn" href="">retain_btreemap</a></span></h1><pre class="rust fn">pub fn retain_btreemap&lt;K:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, V, F:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>K, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>V) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;map: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/collections/btree/map/struct.BTreeMap.html" title="struct alloc::collections::btree::map::BTreeMap">BTreeMap</a>&lt;K, V&gt;, <br>&nbsp;&nbsp;&nbsp;&nbsp;keep: F<br>)</pre></section><section id="search" class="content hidden"></section><section class="footer"></section><script>window.rootPath = "../../";window.currentCrate = "abstutil";</script><script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html>