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<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>petgraph</a>::<wbr><a href='index.html'>algo</a>::<wbr><a class="fn" href=''>dijkstra</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../../src/petgraph/dijkstra.rs.html#34-79' title='goto source code'>[src]</a></span></h1>
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<pre class='rust fn'>pub fn dijkstra<G, F, K>(<br> graph: G, <br> start: G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, <br> goal: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>>, <br> edge_cost: F<br>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap">HashMap</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, K> <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoEdges.html" title="trait petgraph::visit::IntoEdges">IntoEdges</a> + <a class="trait" href="../../petgraph/visit/trait.Visitable.html" title="trait petgraph::visit::Visitable">Visitable</a>,<br> G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(G::<a class="type" href="../../petgraph/visit/trait.IntoEdgeReferences.html#associatedtype.EdgeRef" title="type petgraph::visit::IntoEdgeReferences::EdgeRef">EdgeRef</a>) -> K,<br> K: <a class="trait" href="../../petgraph/algo/trait.Measure.html" title="trait petgraph::algo::Measure">Measure</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>, </span></pre><div class='docblock'><p>[Generic] Dijkstra's shortest path algorithm.</p>
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<p>Compute the length of the shortest path from <code>start</code> to every reachable
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node.</p>
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<p>The graph should be <code>Visitable</code> and implement <code>IntoEdges</code>. The function
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to compute path costs. Edge costs must be non-negative.</p>
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<p>If <code>goal</code> is not <code>None</code>, then the algorithm terminates once the <code>goal</code> node's
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cost is calculated.</p>
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<p>Returns a <code>HashMap</code> that maps <code>NodeId</code> to path cost.</p>
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