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      <h1 class="title">std/enumutils</h1>
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  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
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    <summary><a class="reference reference-toplevel" href="#12" id="62">Procs</a></summary>
    <ul class="simple simple-toc-section">
      <ul class="simple nested-toc-section">symbolName
  <li><a class="reference" href="#symbolName%2CT" title="symbolName[T: enum](a: T): string">symbolName[T: enum](a: T): string</a></li>

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    <summary><a class="reference reference-toplevel" href="#15" id="65">Iterators</a></summary>
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      <ul class="simple nested-toc-section">items
  <li><a class="reference" href="#items.i%2Ctypedesc%5BT%5D" title="items[T: HoleyEnum](E: typedesc[T]): T">items[T: HoleyEnum](E: typedesc[T]): T</a></li>

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      <ul class="simple nested-toc-section">genEnumCaseStmt
  <li><a class="reference" href="#genEnumCaseStmt.m%2Ctypedesc%2Ctyped%2Ctyped%2Cstatic%5Bint%5D%2Cstatic%5Bint%5D%2Cstatic%5Bproc%28string%29%5D" title="genEnumCaseStmt(typ: typedesc; argSym: typed; default: typed;
                userMin, userMax: static[int];
                normalizer: static[proc (s: string): string]): untyped">genEnumCaseStmt(typ: typedesc; argSym: typed; default: typed;
                userMin, userMax: static[int];
                normalizer: static[proc (s: string): string]): untyped</a></li>

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    <summary><a class="reference reference-toplevel" href="#18" id="68">Templates</a></summary>
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      <ul class="simple nested-toc-section">symbolRank
  <li><a class="reference" href="#symbolRank.t%2CT" title="symbolRank[T: enum](a: T): int">symbolRank[T: enum](a: T): int</a></li>

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    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/enumutils.nim#L1" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/enumutils.nim#L1" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

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    <div class="section" id="6">
  <h1><a class="toc-backref" href="#6">Imports</a></h1>
  <dl class="item">
    <a class="reference external" href="macros.html">macros</a>, <a class="reference external" href="typetraits.html">typetraits</a>, <a class="reference external" href="assertions.html">assertions</a>
  </dl>
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<div class="section" id="12">
  <h1><a class="toc-backref" href="#12">Procs</a></h1>
  <dl class="item">
    <div id="symbolName-procs-all">
  <div id="symbolName,T">
  <dt><pre><span class="Keyword">func</span> <a href="#symbolName%2CT"><span class="Identifier">symbolName</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <span class="Keyword">enum</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">a</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a></pre></dt>
  <dd>
    
    <p>Returns the symbol name of an enum.</p>
<p>This uses <tt class="docutils literal"><span class="pre"><span class="Identifier">symbolRank</span></span></tt>.</p>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">type</span> <span class="Identifier">B</span> <span class="Operator">=</span> <span class="Keyword">enum</span>
  <span class="Identifier">b0</span> <span class="Operator">=</span> <span class="Punctuation">(</span><span class="DecNumber">10</span><span class="Punctuation">,</span> <span class="StringLit">&quot;kb0&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">b1</span> <span class="Operator">=</span> <span class="StringLit">&quot;kb1&quot;</span>
  <span class="Identifier">b2</span>
<span class="Keyword">let</span> <span class="Identifier">b</span> <span class="Operator">=</span> <span class="Identifier">B</span><span class="Operator">.</span><span class="Identifier">low</span>
<span class="Identifier">assert</span> <span class="Identifier">b</span><span class="Operator">.</span><span class="Identifier">symbolName</span> <span class="Operator">==</span> <span class="StringLit">&quot;b0&quot;</span>
<span class="Identifier">assert</span> <span class="Operator">$</span><span class="Identifier">b</span> <span class="Operator">==</span> <span class="StringLit">&quot;kb0&quot;</span>
<span class="Keyword">static</span><span class="Punctuation">:</span> <span class="Identifier">assert</span> <span class="Identifier">B</span><span class="Operator">.</span><span class="Identifier">high</span><span class="Operator">.</span><span class="Identifier">symbolName</span> <span class="Operator">==</span> <span class="StringLit">&quot;b2&quot;</span>
<span class="Keyword">type</span> <span class="Identifier">C</span> <span class="Operator">=</span> <span class="Keyword">enum</span> <span class="Comment"># HoleyEnum</span>
  <span class="Identifier">c0</span> <span class="Operator">=</span> <span class="Operator">-</span><span class="DecNumber">3</span>
  <span class="Identifier">c1</span> <span class="Operator">=</span> <span class="DecNumber">4</span>
  <span class="Identifier">c2</span> <span class="Operator">=</span> <span class="DecNumber">20</span>
<span class="Identifier">assert</span> <span class="Identifier">c1</span><span class="Operator">.</span><span class="Identifier">symbolName</span> <span class="Operator">==</span> <span class="StringLit">&quot;c1&quot;</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/enumutils.nim#L180" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/enumutils.nim#L180" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
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<div class="section" id="15">
  <h1><a class="toc-backref" href="#15">Iterators</a></h1>
  <dl class="item">
    <div id="items-iterators-all">
  <div id="items.i,typedesc[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#items.i%2Ctypedesc%5BT%5D"><span class="Identifier">items</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="typetraits.html#HoleyEnum"><span class="Identifier">HoleyEnum</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">E</span><span class="Other">:</span> <a href="system.html#typedesc"><span class="Identifier">typedesc</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">T</span></pre></dt>
  <dd>
    
    Iterates over an enum with holes.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">type</span>
  <span class="Identifier">A</span> <span class="Operator">=</span> <span class="Keyword">enum</span>
    <span class="Identifier">a0</span> <span class="Operator">=</span> <span class="DecNumber">2</span>
    <span class="Identifier">a1</span> <span class="Operator">=</span> <span class="DecNumber">4</span>
    <span class="Identifier">a2</span>
  <span class="Identifier">B</span><span class="Punctuation">[</span><span class="Identifier">T</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="Keyword">enum</span>
    <span class="Identifier">b0</span> <span class="Operator">=</span> <span class="DecNumber">2</span>
    <span class="Identifier">b1</span> <span class="Operator">=</span> <span class="DecNumber">4</span>
<span class="Keyword">from</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">sequtils</span> <span class="Keyword">import</span> <span class="Identifier">toSeq</span>
<span class="Identifier">assert</span> <span class="Identifier">A</span><span class="Operator">.</span><span class="Identifier">toSeq</span> <span class="Operator">==</span> <span class="Punctuation">[</span><span class="Identifier">a0</span><span class="Punctuation">,</span> <span class="Identifier">a1</span><span class="Punctuation">,</span> <span class="Identifier">a2</span><span class="Punctuation">]</span>
<span class="Identifier">assert</span> <span class="Identifier">B</span><span class="Punctuation">[</span><span class="Identifier">float</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">toSeq</span> <span class="Operator">==</span> <span class="Punctuation">[</span><span class="Identifier">B</span><span class="Punctuation">[</span><span class="Identifier">float</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">b0</span><span class="Punctuation">,</span> <span class="Identifier">B</span><span class="Punctuation">[</span><span class="Identifier">float</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">b1</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/enumutils.nim#L94" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/enumutils.nim#L94" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

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  </dl>
</div>
<div class="section" id="17">
  <h1><a class="toc-backref" href="#17">Macros</a></h1>
  <dl class="item">
    <div id="genEnumCaseStmt-macros-all">
  <div id="genEnumCaseStmt.m,typedesc,typed,typed,static[int],static[int],static[proc(string)]">
  <dt><pre><span class="Keyword">macro</span> <a href="#genEnumCaseStmt.m%2Ctypedesc%2Ctyped%2Ctyped%2Cstatic%5Bint%5D%2Cstatic%5Bint%5D%2Cstatic%5Bproc%28string%29%5D"><span class="Identifier">genEnumCaseStmt</span></a><span class="Other">(</span><span class="Identifier">typ</span><span class="Other">:</span> <a href="system.html#typedesc"><span class="Identifier">typedesc</span></a><span class="Other">;</span> <span class="Identifier">argSym</span><span class="Other">:</span> <a href="system.html#typed"><span class="Identifier">typed</span></a><span class="Other">;</span> <span class="Identifier">default</span><span class="Other">:</span> <a href="system.html#typed"><span class="Identifier">typed</span></a><span class="Other">;</span>
                      <span class="Identifier">userMin</span><span class="Other">,</span> <span class="Identifier">userMax</span><span class="Other">:</span> <a href="system.html#static"><span class="Identifier">static</span></a><span class="Other">[</span><a href="system.html#int"><span class="Identifier">int</span></a><span class="Other">]</span><span class="Other">;</span>
                      <span class="Identifier">normalizer</span><span class="Other">:</span> <a href="system.html#static"><span class="Identifier">static</span></a><span class="Other">[</span><span class="Keyword">proc</span> <span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#untyped"><span class="Identifier">untyped</span></a></pre></dt>
  <dd>
    
    
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/enumutils.nim#L19" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/enumutils.nim#L19" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>

  </dl>
</div>
<div class="section" id="18">
  <h1><a class="toc-backref" href="#18">Templates</a></h1>
  <dl class="item">
    <div id="symbolRank-templates-all">
  <div id="symbolRank.t,T">
  <dt><pre><span class="Keyword">template</span> <a href="#symbolRank.t%2CT"><span class="Identifier">symbolRank</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <span class="Keyword">enum</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">a</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#int"><span class="Identifier">int</span></a></pre></dt>
  <dd>
    
    <p>Returns the index in which <tt class="docutils literal"><span class="pre"><span class="Identifier">a</span></span></tt> is listed in <tt class="docutils literal"><span class="pre"><span class="Identifier">T</span></span></tt>.</p>
<p>The cost for a <tt class="docutils literal"><span class="pre"><span class="Identifier">HoleyEnum</span></span></tt> is implementation defined, currently optimized for small enums, otherwise is <tt class="docutils literal"><span class="pre"><span class="Identifier">O</span><span class="Punctuation">(</span><span class="Identifier">T</span><span class="Operator">.</span><span class="Identifier">enumLen</span><span class="Punctuation">)</span></span></tt>.</p>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">type</span>
  <span class="Identifier">A</span> <span class="Operator">=</span> <span class="Keyword">enum</span> <span class="Comment"># HoleyEnum</span>
    <span class="Identifier">a0</span> <span class="Operator">=</span> <span class="Operator">-</span><span class="DecNumber">3</span>
    <span class="Identifier">a1</span> <span class="Operator">=</span> <span class="DecNumber">10</span>
    <span class="Identifier">a2</span>
    <span class="Identifier">a3</span> <span class="Operator">=</span> <span class="Punctuation">(</span><span class="DecNumber">20</span><span class="Punctuation">,</span> <span class="StringLit">&quot;f3Alt&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">B</span> <span class="Operator">=</span> <span class="Keyword">enum</span> <span class="Comment"># OrdinalEnum</span>
    <span class="Identifier">b0</span>
    <span class="Identifier">b1</span>
    <span class="Identifier">b2</span>
  <span class="Identifier">C</span> <span class="Operator">=</span> <span class="Keyword">enum</span> <span class="Comment"># OrdinalEnum</span>
    <span class="Identifier">c0</span> <span class="Operator">=</span> <span class="DecNumber">10</span>
    <span class="Identifier">c1</span>
    <span class="Identifier">c2</span>
<span class="Identifier">assert</span> <span class="Identifier">a2</span><span class="Operator">.</span><span class="Identifier">symbolRank</span> <span class="Operator">==</span> <span class="DecNumber">2</span>
<span class="Identifier">assert</span> <span class="Identifier">b2</span><span class="Operator">.</span><span class="Identifier">symbolRank</span> <span class="Operator">==</span> <span class="DecNumber">2</span>
<span class="Identifier">assert</span> <span class="Identifier">c2</span><span class="Operator">.</span><span class="Identifier">symbolRank</span> <span class="Operator">==</span> <span class="DecNumber">2</span>
<span class="Identifier">assert</span> <span class="Identifier">c2</span><span class="Operator">.</span><span class="Identifier">ord</span> <span class="Operator">==</span> <span class="DecNumber">12</span>
<span class="Identifier">assert</span> <span class="Identifier">a2</span><span class="Operator">.</span><span class="Identifier">ord</span> <span class="Operator">==</span> <span class="DecNumber">11</span>
<span class="Keyword">var</span> <span class="Identifier">invalid</span> <span class="Operator">=</span> <span class="FloatNumber">7.</span><span class="Identifier">A</span>
<span class="Identifier">doAssertRaises</span><span class="Punctuation">(</span><span class="Identifier">IndexDefect</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Keyword">discard</span> <span class="Identifier">invalid</span><span class="Operator">.</span><span class="Identifier">symbolRank</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/std/enumutils.nim#L147" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/std/enumutils.nim#L147" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

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