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59 lines
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<!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="[Generic] complement of the graph"><title>complement in petgraph::operator - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-42caa33d.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="petgraph" data-themes="" data-resource-suffix="" data-rustdoc-version="1.84.0 (9fc6b4312 2025-01-07)" data-channel="1.84.0" data-search-js="search-92e6798f.js" data-settings-js="settings-0f613d39.js" ><script src="../../static.files/storage-59e33391.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../petgraph/index.html">petgraph</a><span class="version">0.6.5</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">complement</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#example" title="Example">Example</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="index.html">In petgraph::<wbr>operator</a></h2></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><span class="rustdoc-breadcrumbs"><a href="../index.html">petgraph</a>::<wbr><a href="index.html">operator</a></span><h1>Function <span class="fn">complement</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/petgraph/operator.rs.html#63-83">Source</a> </span></div><pre class="rust item-decl"><code>pub fn complement<N, E, Ty, Ix>(
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input: &<a class="struct" href="../graph/struct.Graph.html" title="struct petgraph::graph::Graph">Graph</a><N, E, Ty, Ix>,
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output: &mut <a class="struct" href="../graph/struct.Graph.html" title="struct petgraph::graph::Graph">Graph</a><N, E, Ty, Ix>,
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weight: E,
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)<div class="where">where
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Ty: <a class="trait" href="../trait.EdgeType.html" title="trait petgraph::EdgeType">EdgeType</a>,
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Ix: <a class="trait" href="../graph/trait.IndexType.html" title="trait petgraph::graph::IndexType">IndexType</a>,
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E: <a class="trait" href="https://doc.rust-lang.org/1.84.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
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N: <a class="trait" href="https://doc.rust-lang.org/1.84.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>[Generic] complement of the graph</p>
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<p>Computes the graph complement of the input Graph and stores it
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in the provided empty output Graph.</p>
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<p>The function does not create self-loops.</p>
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<p>Computes in <strong>O(|V|^2*log(|V|))</strong> time (average).</p>
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<p>Returns the complement.</p>
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<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>petgraph::Graph;
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<span class="kw">use </span>petgraph::operator::complement;
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<span class="kw">use </span>petgraph::prelude::<span class="kw-2">*</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>graph: Graph<(),(),Directed> = Graph::new();
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<span class="kw">let </span>a = graph.add_node(()); <span class="comment">// node with no weight
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</span><span class="kw">let </span>b = graph.add_node(());
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<span class="kw">let </span>c = graph.add_node(());
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<span class="kw">let </span>d = graph.add_node(());
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graph.extend_with_edges(<span class="kw-2">&</span>[
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(a, b),
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(b, c),
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(c, d),
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]);
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<span class="comment">// a ----> b ----> c ----> d
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</span><span class="kw">let </span><span class="kw-2">mut </span>output: Graph<(), (), Directed> = Graph::new();
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complement(<span class="kw-2">&</span>graph, <span class="kw-2">&mut </span>output, ());
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<span class="kw">let </span><span class="kw-2">mut </span>expected_res: Graph<(), (), Directed> = Graph::new();
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<span class="kw">let </span>a = expected_res.add_node(());
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<span class="kw">let </span>b = expected_res.add_node(());
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<span class="kw">let </span>c = expected_res.add_node(());
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<span class="kw">let </span>d = expected_res.add_node(());
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expected_res.extend_with_edges(<span class="kw-2">&</span>[
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(a, c),
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(a, d),
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(b, a),
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(b, d),
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(c, a),
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(c, b),
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(d, a),
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(d, b),
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(d, c),
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]);
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<span class="kw">for </span>x <span class="kw">in </span>graph.node_indices() {
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<span class="kw">for </span>y <span class="kw">in </span>graph.node_indices() {
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<span class="macro">assert_eq!</span>(output.contains_edge(x, y), expected_res.contains_edge(x, y));
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}
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}</code></pre></div>
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</div></details></section></div></main></body></html> |