<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `serialize_btreemap` fn in crate `abstutil`."><meta name="keywords" content="rust, rustlang, rust-lang, serialize_btreemap"><title>abstutil::serialize_btreemap - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../light.css"  id="themeStyle"><link rel="stylesheet" type="text/css" href="../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../ayu.css" disabled ><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../favicon.svg">
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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/serde.rs.html#45-50' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='index.html'>abstutil</a>::<wbr><a class="fn" href=''>serialize_btreemap</a></span></h1><pre class='rust fn'>pub fn serialize_btreemap&lt;S:&nbsp;<a class="trait" href="https://docs.rs/serde/1.0.118/serde/ser/trait.Serializer.html" title="trait serde::ser::Serializer">Serializer</a>, K:&nbsp;<a class="trait" href="https://docs.rs/serde/1.0.118/serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a>, V:&nbsp;<a class="trait" href="https://docs.rs/serde/1.0.118/serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a>&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;map: &amp;<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;s: S<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;S::<a class="type" href="https://docs.rs/serde/1.0.118/serde/ser/trait.Serializer.html#associatedtype.Ok" title="type serde::ser::Serializer::Ok">Ok</a>, S::<a class="type" href="https://docs.rs/serde/1.0.118/serde/ser/trait.Serializer.html#associatedtype.Error" title="type serde::ser::Serializer::Error">Error</a>&gt;</pre><div class='docblock'><p>Serializes a BTreeMap as a list of tuples. Necessary when the keys are structs; see
https://github.com/serde-rs/json/issues/402.</p>
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