<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="Use with `FixedMap`. From a particular key, extract a `usize`. These values should be roughly contiguous; the space used by the `FixedMap` will be `O(n)` with respect to the largest value returned here."><metaname="keywords"content="rust, rustlang, rust-lang, IndexableKey"><title>IndexableKey in abstutil - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../ayu.css"disabled><scriptid="default-settings"></script><scriptsrc="../storage.js"></script><scriptsrc="../crates.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="icon"type="image/svg+xml"href="../favicon.svg">
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}</pre></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>Use with <code>FixedMap</code>. From a particular key, extract a <code>usize</code>. These values should be
