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99<html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1"/><meta name="description" content="A collection of lints to catch common mistakes and improve your Rust code."><title>Clippy Lints</title><link id="githubLightHighlight" rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/styles/github.min.css" disabled="true" /><link id="githubDarkHighlight" rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/styles/github-dark.min.css" disabled="true" /><!-- The files are not copied over into the Clippy project since they use the MPL-2.0 License -->
10- <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/css/variables.css"/><link id="styleHighlight" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/highlight.css"><link id="styleNight" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/tomorrow-night.css" disabled="true"><link id="styleAyu" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/ayu-highlight.css" disabled="true"><link rel="stylesheet" href="style.css"><script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/highlight.min.js" defer></script><script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/languages/rust.min.js" defer></script><script src="script.js" defer></script></head><body><div id="settings-dropdown" class="dropdown"><button class="settings-icon" tabindex="-1"></button><div class="settings-menu" tabindex="-1"><div class="setting-radio-name">Theme</div><select id="theme-choice"><option value="ayu">Ayu</option><option value="coal">Coal</option><option value="light">Light</option><option value="navy">Navy</option><option value="rust">Rust</option></select><label><input type="checkbox" id="disable-shortcuts"> <span>Disable keyboard shortcuts</span></label></div></div><script src="theme.js"></script><div class="container"><h1 class="page-header">Clippy Lints <span class="badge">Total number: 828</span></h1><noscript><div class="alert alert-danger" role="alert">Lints search and filtering only works with JS enabled. :(</div></noscript><div id="menu-filters"><div id="upper-filters"><div class="dropdown" data-filter="levels" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Lint levels <span id="levels-count" class="badge">4</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="allow" checked />Allow</label></li><li class="checkbox"><label><input type="checkbox" name="warn" checked />Warn</label></li><li class="checkbox"><label><input type="checkbox" name="deny" checked />Deny</label></li><li class="checkbox"><label><input type="checkbox" name="none" checked />None</label></li></ul></div><div class="dropdown" data-filter="groups" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Lint groups <span id="groups-count" class="badge">9</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-default">Default</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="cargo" checked/>Cargo</label></li><li class="checkbox"><label><input type="checkbox" name="complexity" checked/>Complexity</label></li><li class="checkbox"><label><input type="checkbox" name="correctness" checked/>Correctness</label></li><li class="checkbox"><label><input type="checkbox" name="nursery" checked/>Nursery</label></li><li class="checkbox"><label><input type="checkbox" name="pedantic" checked/>Pedantic</label></li><li class="checkbox"><label><input type="checkbox" name="perf" checked/>Perf</label></li><li class="checkbox"><label><input type="checkbox" name="restriction" checked/>Restriction</label></li><li class="checkbox"><label><input type="checkbox" name="style" checked/>Style</label></li><li class="checkbox"><label><input type="checkbox" name="suspicious" checked/>Suspicious</label></li><li class="checkbox"><label><input type="checkbox" name="deprecated"/>Deprecated</label></li></ul></div><div id="version-filter" class="dropdown" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Version <span id="versions-count" class="badge">0</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button id="reset-versions">Clear filters</button></li><li role="separator" class="divider"></li><li class="checkbox"><label>≥</label> <span>1.</span><input type="number" name="gte" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li><li class="checkbox"><label>≤</label> <span>1.</span><input type="number" name="lte" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li><li class="checkbox"><label>=</label> <span>1.</span><input type="number" name="eq" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li></ul></div><div class="dropdown" data-filter="applicabilities" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Applicability <span id="applicabilities-count" class="badge">4</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="Unspecified" checked />Unspecified</label></li><li class="checkbox"><label><input type="checkbox" name="MachineApplicable" checked />MachineApplicable</label></li><li class="checkbox"><label><input type="checkbox" name="MaybeIncorrect" checked />MaybeIncorrect</label></li><li class="checkbox"><label><input type="checkbox" name="HasPlaceholders" checked />HasPlaceholders</label></li></ul></div></div><div class="search-control"><label class="input-group-addon" id="filter-label" for="search-input">Filter:</label><input type="text" class="form-control filter-input" placeholder="Keywords or search string (`S` or `/` to focus)" id="search-input" /><button id="filter-clear" type="button">Clear</button></div><div class="btn-group expansion-group"><button title="Collapse All" class="btn-default expansion-control" type="button" id="collapse-all"><span class="glyphicon glyphicon-collapse-up"></span></button><button title="Expand All" class="btn-default expansion-control" type="button" id="expand-all"><span class="glyphicon glyphicon-collapse-down"></span></button></div></div><article id="absolute_paths"><input id="label-absolute_paths" type="checkbox"><label for="label-absolute_paths"><h2 class="lint-title"><div class="panel-title-name" id="lint-absolute_paths">absolute_paths
10+ <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/css/variables.css"/><link id="styleHighlight" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/highlight.css"><link id="styleNight" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/tomorrow-night.css" disabled="true"><link id="styleAyu" rel="stylesheet" href="https://cdn.jsdelivr.net/gh/rust-lang/mdBook@0.4.46/src/theme/ayu-highlight.css" disabled="true"><link rel="stylesheet" href="style.css"><script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/highlight.min.js" defer></script><script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/languages/rust.min.js" defer></script><script src="script.js" defer></script></head><body><div id="settings-dropdown" class="dropdown"><button class="settings-icon" tabindex="-1"></button><div class="settings-menu" tabindex="-1"><label class="setting-radio-name" for="theme-choice">Theme</label><select id="theme-choice"><option value="ayu">Ayu</option><option value="coal">Coal</option><option value="light">Light</option><option value="navy">Navy</option><option value="rust">Rust</option></select><label><input type="checkbox" id="disable-shortcuts"> <span>Disable keyboard shortcuts</span></label></div></div><script src="theme.js"></script><div class="container"><h1 class="page-header">Clippy Lints <span class="badge">Total number: 828</span></h1><noscript><div class="alert alert-danger" role="alert">Lints search and filtering only works with JS enabled. :(</div></noscript><div id="menu-filters"><div id="upper-filters"><div class="dropdown" data-filter="levels" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Lint levels <span id="levels-count" class="badge">4</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="allow" checked />Allow</label></li><li class="checkbox"><label><input type="checkbox" name="warn" checked />Warn</label></li><li class="checkbox"><label><input type="checkbox" name="deny" checked />Deny</label></li><li class="checkbox"><label><input type="checkbox" name="none" checked />None</label></li></ul></div><div class="dropdown" data-filter="groups" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Lint groups <span id="groups-count" class="badge">9</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-default">Default</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="cargo" checked/>Cargo</label></li><li class="checkbox"><label><input type="checkbox" name="complexity" checked/>Complexity</label></li><li class="checkbox"><label><input type="checkbox" name="correctness" checked/>Correctness</label></li><li class="checkbox"><label><input type="checkbox" name="nursery" checked/>Nursery</label></li><li class="checkbox"><label><input type="checkbox" name="pedantic" checked/>Pedantic</label></li><li class="checkbox"><label><input type="checkbox" name="perf" checked/>Perf</label></li><li class="checkbox"><label><input type="checkbox" name="restriction" checked/>Restriction</label></li><li class="checkbox"><label><input type="checkbox" name="style" checked/>Style</label></li><li class="checkbox"><label><input type="checkbox" name="suspicious" checked/>Suspicious</label></li><li class="checkbox"><label><input type="checkbox" name="deprecated"/>Deprecated</label></li></ul></div><div id="version-filter" class="dropdown" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Version <span id="versions-count" class="badge">0</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button id="reset-versions">Clear filters</button></li><li role="separator" class="divider"></li><li class="checkbox"><label for="version-filter-gte">≥</label> <span>1.</span><input id="version-filter-gte" type="number" name="gte" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li><li class="checkbox"><label for="version-filter-lte">≤</label> <span>1.</span><input id="version-filter-lte" type="number" name="lte" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li><li class="checkbox"><label for="version-filter-eq">=</label> <span>1.</span><input id="version-filter-eq" type="number" name="eq" min="29" maxlength="2" class="version-filter-input form-control filter-input" /><span>.0</span></li></ul></div><div class="dropdown" data-filter="applicabilities" tabindex="-1"><button type="button" class="btn-default dropdown-toggle">Applicability <span id="applicabilities-count" class="badge">4</span> <span class="caret"></span></button><ul class="dropdown-menu"><li class="checkbox"><button class="reset-all">All</button></li><li class="checkbox"><button class="reset-none">None</button></li><li role="separator" class="divider"></li><li class="checkbox"><label><input type="checkbox" name="Unspecified" checked />Unspecified</label></li><li class="checkbox"><label><input type="checkbox" name="MachineApplicable" checked />MachineApplicable</label></li><li class="checkbox"><label><input type="checkbox" name="MaybeIncorrect" checked />MaybeIncorrect</label></li><li class="checkbox"><label><input type="checkbox" name="HasPlaceholders" checked />HasPlaceholders</label></li></ul></div></div><div class="search-control"><label class="input-group-addon" id="filter-label" for="search-input">Filter:</label><input type="text" class="form-control filter-input" placeholder="Keywords or search string (`S` or `/` to focus)" id="search-input" /><button id="filter-clear" type="button">Clear</button></div><div class="btn-group expansion-group"><button title="Collapse All" class="btn-default expansion-control" type="button" id="collapse-all"><span class="glyphicon glyphicon-collapse-up"></span></button><button title="Expand All" class="btn-default expansion-control" type="button" id="expand-all"><span class="glyphicon glyphicon-collapse-down"></span></button></div></div><article id="absolute_paths"><input id="label-absolute_paths" type="checkbox"><label for="label-absolute_paths"><h2 class="lint-title"><div class="panel-title-name" id="lint-absolute_paths">absolute_paths
1111<a href="#absolute_paths" class="anchor label">¶</a> <a href="" class="copy-to-clipboard anchor label">📋</a></div><span class="label lint-group group-restriction">restriction</span> <span class="label lint-level level-allow">allow</span> <span class="label doc-folding"></span></h2></label><div class="lint-docs"><div class="lint-doc-md"><h3>What it does</h3>
1212<p>Checks for usage of items through absolute paths, like <code>std::f64::consts::PI</code>.</p>
1313<h3>Why restrict this?</h3>
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