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      <h1 class="title">std/critbits</h1>
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  <li>
  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
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<li>
  <details open>
    <summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
    <ul class="simple simple-toc-section">
      <li><a class="reference" href="#CritBitTree" title="CritBitTree[T] = object">CritBitTree</a></li>

    </ul>
  </details>
</li>
<li>
  <details open>
    <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">$
  <li><a class="reference" href="#%24%2CCritBitTree%5BT%5D" title="`$`[T](c: CritBitTree[T]): string">`$`[T](c: CritBitTree[T]): string</a></li>

</ul>
<ul class="simple nested-toc-section">[]
  <li><a class="reference" href="#%5B%5D%2CCritBitTree%5BT%5D%2Cstring" title="`[]`[T](c: CritBitTree[T]; key: string): lent T">`[]`[T](c: CritBitTree[T]; key: string): lent T</a></li>
<li><a class="reference" href="#%5B%5D%2CCritBitTree%5BT%5D%2Cstring_2" title="`[]`[T](c: var CritBitTree[T]; key: string): var T">`[]`[T](c: var CritBitTree[T]; key: string): var T</a></li>

</ul>
<ul class="simple nested-toc-section">[]=
  <li><a class="reference" href="#%5B%5D%3D%2CCritBitTree%5BT%5D%2Cstring%2CsinkT" title="`[]=`[T](c: var CritBitTree[T]; key: string; val: sink T)">`[]=`[T](c: var CritBitTree[T]; key: string; val: sink T)</a></li>

</ul>
<ul class="simple nested-toc-section">commonPrefixLen
  <li><a class="reference" href="#commonPrefixLen%2CCritBitTree%5BT%5D" title="commonPrefixLen[T](c: CritBitTree[T]): int">commonPrefixLen[T](c: CritBitTree[T]): int</a></li>

</ul>
<ul class="simple nested-toc-section">contains
  <li><a class="reference" href="#contains%2CCritBitTree%5BT%5D%2Cstring" title="contains[T](c: CritBitTree[T]; key: string): bool">contains[T](c: CritBitTree[T]; key: string): bool</a></li>

</ul>
<ul class="simple nested-toc-section">containsOrIncl
  <li><a class="reference" href="#containsOrIncl%2CCritBitTree%5Bvoid%5D%2Cstring" title="containsOrIncl(c: var CritBitTree[void]; key: string): bool">containsOrIncl(c: var CritBitTree[void]; key: string): bool</a></li>
<li><a class="reference" href="#containsOrIncl%2CCritBitTree%5BT%5D%2Cstring%2CsinkT" title="containsOrIncl[T](c: var CritBitTree[T]; key: string; val: sink T): bool">containsOrIncl[T](c: var CritBitTree[T]; key: string; val: sink T): bool</a></li>

</ul>
<ul class="simple nested-toc-section">excl
  <li><a class="reference" href="#excl%2CCritBitTree%5BT%5D%2Cstring" title="excl[T](c: var CritBitTree[T]; key: string)">excl[T](c: var CritBitTree[T]; key: string)</a></li>

</ul>
<ul class="simple nested-toc-section">hasKey
  <li><a class="reference" href="#hasKey%2CCritBitTree%5BT%5D%2Cstring" title="hasKey[T](c: CritBitTree[T]; key: string): bool">hasKey[T](c: CritBitTree[T]; key: string): bool</a></li>

</ul>
<ul class="simple nested-toc-section">inc
  <li><a class="reference" href="#inc%2CCritBitTree%5Bint%5D%2Cstring%2Cint" title="inc(c: var CritBitTree[int]; key: string; val: int = 1)">inc(c: var CritBitTree[int]; key: string; val: int = 1)</a></li>

</ul>
<ul class="simple nested-toc-section">incl
  <li><a class="reference" href="#incl%2CCritBitTree%5Bvoid%5D%2Cstring" title="incl(c: var CritBitTree[void]; key: string)">incl(c: var CritBitTree[void]; key: string)</a></li>
<li><a class="reference" href="#incl%2CCritBitTree%5BT%5D%2Cstring%2CsinkT" title="incl[T](c: var CritBitTree[T]; key: string; val: sink T)">incl[T](c: var CritBitTree[T]; key: string; val: sink T)</a></li>

</ul>
<ul class="simple nested-toc-section">len
  <li><a class="reference" href="#len%2CCritBitTree%5BT%5D" title="len[T](c: CritBitTree[T]): int">len[T](c: CritBitTree[T]): int</a></li>

</ul>
<ul class="simple nested-toc-section">missingOrExcl
  <li><a class="reference" href="#missingOrExcl%2CCritBitTree%5BT%5D%2Cstring" title="missingOrExcl[T](c: var CritBitTree[T]; key: string): bool">missingOrExcl[T](c: var CritBitTree[T]; key: string): bool</a></li>

</ul>
<ul class="simple nested-toc-section">toCritBitTree
  <li><a class="reference" href="#toCritBitTree%2CsinkopenArray%5Bstring%5D" title="toCritBitTree(items: sink openArray[string]): CritBitTree[void]">toCritBitTree(items: sink openArray[string]): CritBitTree[void]</a></li>
<li><a class="reference" href="#toCritBitTree%2CsinkopenArray%5B%5D" title="toCritBitTree[T](pairs: sink openArray[(string, T)]): CritBitTree[T]">toCritBitTree[T](pairs: sink openArray[(string, T)]): CritBitTree[T]</a></li>

</ul>

    </ul>
  </details>
</li>
<li>
  <details open>
    <summary><a class="reference reference-toplevel" href="#15" id="65">Iterators</a></summary>
    <ul class="simple simple-toc-section">
      <ul class="simple nested-toc-section">items
  <li><a class="reference" href="#items.i%2CCritBitTree%5BT%5D" title="items[T](c: CritBitTree[T]): string">items[T](c: CritBitTree[T]): string</a></li>

</ul>
<ul class="simple nested-toc-section">itemsWithPrefix
  <li><a class="reference" href="#itemsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="itemsWithPrefix[T](c: CritBitTree[T]; prefix: string): string">itemsWithPrefix[T](c: CritBitTree[T]; prefix: string): string</a></li>

</ul>
<ul class="simple nested-toc-section">keys
  <li><a class="reference" href="#keys.i%2CCritBitTree%5BT%5D" title="keys[T](c: CritBitTree[T]): string">keys[T](c: CritBitTree[T]): string</a></li>

</ul>
<ul class="simple nested-toc-section">keysWithPrefix
  <li><a class="reference" href="#keysWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="keysWithPrefix[T](c: CritBitTree[T]; prefix: string): string">keysWithPrefix[T](c: CritBitTree[T]; prefix: string): string</a></li>

</ul>
<ul class="simple nested-toc-section">mpairs
  <li><a class="reference" href="#mpairs.i%2CCritBitTree%5BT%5D" title="mpairs[T](c: var CritBitTree[T]): tuple[key: string, val: var T]">mpairs[T](c: var CritBitTree[T]): tuple[key: string, val: var T]</a></li>

</ul>
<ul class="simple nested-toc-section">mpairsWithPrefix
  <li><a class="reference" href="#mpairsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="mpairsWithPrefix[T](c: var CritBitTree[T]; prefix: string): tuple[key: string,
    val: var T]">mpairsWithPrefix[T](c: var CritBitTree[T]; prefix: string): tuple[key: string,
    val: var T]</a></li>

</ul>
<ul class="simple nested-toc-section">mvalues
  <li><a class="reference" href="#mvalues.i%2CCritBitTree%5BT%5D" title="mvalues[T](c: var CritBitTree[T]): var T">mvalues[T](c: var CritBitTree[T]): var T</a></li>

</ul>
<ul class="simple nested-toc-section">mvaluesWithPrefix
  <li><a class="reference" href="#mvaluesWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="mvaluesWithPrefix[T](c: var CritBitTree[T]; prefix: string): var T">mvaluesWithPrefix[T](c: var CritBitTree[T]; prefix: string): var T</a></li>

</ul>
<ul class="simple nested-toc-section">pairs
  <li><a class="reference" href="#pairs.i%2CCritBitTree%5BT%5D" title="pairs[T](c: CritBitTree[T]): tuple[key: string, val: T]">pairs[T](c: CritBitTree[T]): tuple[key: string, val: T]</a></li>

</ul>
<ul class="simple nested-toc-section">pairsWithPrefix
  <li><a class="reference" href="#pairsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="pairsWithPrefix[T](c: CritBitTree[T]; prefix: string): tuple[key: string, val: T]">pairsWithPrefix[T](c: CritBitTree[T]; prefix: string): tuple[key: string, val: T]</a></li>

</ul>
<ul class="simple nested-toc-section">values
  <li><a class="reference" href="#values.i%2CCritBitTree%5BT%5D" title="values[T](c: CritBitTree[T]): lent T">values[T](c: CritBitTree[T]): lent T</a></li>

</ul>
<ul class="simple nested-toc-section">valuesWithPrefix
  <li><a class="reference" href="#valuesWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring" title="valuesWithPrefix[T](c: CritBitTree[T]; prefix: string): lent T">valuesWithPrefix[T](c: CritBitTree[T]; prefix: string): lent T</a></li>

</ul>

    </ul>
  </details>
</li>

</ul>

  </div>
  <div class="nine columns" id="content">
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L1" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L1" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

    <div id="tocRoot"></div>
    
    <p class="module-desc">This module implements a <span id="crit-bit-tree_1">crit bit tree</span> which is an efficient container for a sorted set of strings, or for a sorted mapping of strings. Based on the <a class="reference external" href="https://www.imperialviolet.org/binary/critbit.pdf">excellent paper by Adam Langley</a>. (A crit bit tree is a form of <span id="radix-tree_1">radix tree</span> or <span id="patricia-trie_1">patricia trie</span>.)
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">critbits</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="Keyword">var</span> <span class="Identifier">critbitAsSet</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="Punctuation">[</span><span class="StringLit">&quot;kitten&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;puppy&quot;</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">critbitAsSet</span><span class="Operator">.</span><span class="Identifier">len</span> <span class="Operator">==</span> <span class="DecNumber">2</span>
<span class="Identifier">critbitAsSet</span><span class="Operator">.</span><span class="Identifier">incl</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="StringLit">&quot;&quot;</span> <span class="Keyword">in</span> <span class="Identifier">critbitAsSet</span>
<span class="Identifier">critbitAsSet</span><span class="Operator">.</span><span class="Identifier">excl</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="StringLit">&quot;&quot;</span> <span class="Keyword">notin</span> <span class="Identifier">critbitAsSet</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">critbitAsSet</span><span class="Operator">.</span><span class="Identifier">items</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;kitten&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;puppy&quot;</span><span class="Punctuation">]</span>
<span class="Keyword">let</span> <span class="Identifier">same</span> <span class="Operator">=</span> <span class="Punctuation">[</span><span class="StringLit">&quot;puppy&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;kitten&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;puppy&quot;</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">same</span><span class="Operator">.</span><span class="Identifier">keys</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">critbitAsSet</span><span class="Operator">.</span><span class="Identifier">keys</span><span class="Punctuation">)</span>

<span class="Keyword">var</span> <span class="Identifier">critbitAsDict</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">42</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">critbitAsDict</span><span class="Operator">.</span><span class="Identifier">len</span> <span class="Operator">==</span> <span class="DecNumber">1</span>
<span class="Identifier">critbitAsDict</span><span class="Punctuation">[</span><span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="DecNumber">0</span>
<span class="Identifier">doAssert</span> <span class="StringLit">&quot;key2&quot;</span> <span class="Keyword">in</span> <span class="Identifier">critbitAsDict</span>
<span class="Identifier">doAssert</span> <span class="Identifier">critbitAsDict</span><span class="Punctuation">[</span><span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="DecNumber">0</span>
<span class="Identifier">critbitAsDict</span><span class="Operator">.</span><span class="Identifier">excl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="StringLit">&quot;key1&quot;</span> <span class="Keyword">notin</span> <span class="Identifier">critbitAsDict</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">critbitAsDict</span><span class="Operator">.</span><span class="Identifier">pairs</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">(</span><span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">0</span><span class="Punctuation">)</span><span class="Punctuation">]</span></pre></p>
    <div class="section" id="6">
  <h1><a class="toc-backref" href="#6">Imports</a></h1>
  <dl class="item">
    <a class="reference external" href="since.html">since</a>, <a class="reference external" href="assertions.html">assertions</a>
  </dl>
</div>
<div class="section" id="7">
  <h1><a class="toc-backref" href="#7">Types</a></h1>
  <dl class="item">
    <div id="CritBitTree">
  <dt><pre><a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span> <span class="Other">=</span> <span class="Keyword">object</span></pre></dt>
  <dd>
    
    The crit bit tree can either be used as a mapping from strings to some type <tt class="docutils literal"><span class="pre"><span class="Identifier">T</span></span></tt> or as a set of strings if <tt class="docutils literal"><span class="pre"><span class="Identifier">T</span></span></tt> is <tt class="docutils literal"><span class="pre"><span class="Identifier">void</span></span></tt>.
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L54" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L54" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

  </dl>
</div>
<div class="section" id="12">
  <h1><a class="toc-backref" href="#12">Procs</a></h1>
  <dl class="item">
    <div id="$-procs-all">
  <div id="$,CritBitTree[T]">
  <dt><pre><span class="Keyword">func</span> <a href="#%24%2CCritBitTree%5BT%5D"><span class="Identifier">`$`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a></pre></dt>
  <dd>
    
    Turns <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> into a string representation.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Identifier">doAssert</span> <span class="Operator">$</span><span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">default</span> <span class="Operator">==</span> <span class="StringLit">&quot;{:}&quot;</span>
<span class="Identifier">doAssert</span> <span class="Operator">$</span><span class="Identifier">toCritBitTree</span><span class="Punctuation">(</span><span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">}</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="LongStringLit">&quot;&quot;&quot;{&quot;key1&quot;: 1, &quot;key2&quot;: 2}&quot;&quot;&quot;</span>
<span class="Identifier">doAssert</span> <span class="Operator">$</span><span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">default</span> <span class="Operator">==</span> <span class="StringLit">&quot;{}&quot;</span>
<span class="Identifier">doAssert</span> <span class="Operator">$</span><span class="Identifier">toCritBitTree</span><span class="Punctuation">(</span><span class="Punctuation">[</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="LongStringLit">&quot;&quot;&quot;{&quot;key1&quot;, &quot;key2&quot;}&quot;&quot;&quot;</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L477" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L477" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="[]-procs-all">
  <div id="[],CritBitTree[T],string">
  <dt><pre><span class="Keyword">func</span> <a href="#%5B%5D%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">`[]`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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#lent"><span class="Identifier">lent</span></a> <span class="Identifier">T</span> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    <p>Retrieves the value at <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span><span class="Punctuation">[</span><span class="Identifier">key</span><span class="Punctuation">]</span></span></tt>. If <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> is not in <tt class="docutils literal"><span class="pre"><span class="Identifier">t</span></span></tt>, the <tt class="docutils literal"><span class="pre"><span class="Identifier">KeyError</span></span></tt> exception is raised. One can check with <tt class="docutils literal"><span class="pre"><span class="Identifier">hasKey</span></span></tt> whether the key exists.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#[],CritBitTree[T],string_2">[] proc</a></li>
<li><a class="reference external" href="#[]=,CritBitTree[T],string,T">[]= proc</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L307" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L307" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>
<div id="[],CritBitTree[T],string_2">
  <dt><pre><span class="Keyword">func</span> <a href="#%5B%5D%2CCritBitTree%5BT%5D%2Cstring_2"><span class="Identifier">`[]`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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="Keyword">var</span> <span class="Identifier">T</span> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    <p>Retrieves the value at <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span><span class="Punctuation">[</span><span class="Identifier">key</span><span class="Punctuation">]</span></span></tt>. The value can be modified. If <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> is not in <tt class="docutils literal"><span class="pre"><span class="Identifier">t</span></span></tt>, the <tt class="docutils literal"><span class="pre"><span class="Identifier">KeyError</span></span></tt> exception is raised.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#[],CritBitTree[T],string">[] proc</a></li>
<li><a class="reference external" href="#[]=,CritBitTree[T],string,T">[]= proc</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L317" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L317" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="[]=-procs-all">
  <div id="[]=,CritBitTree[T],string,sinkT">
  <dt><pre><span class="Keyword">proc</span> <a href="#%5B%5D%3D%2CCritBitTree%5BT%5D%2Cstring%2CsinkT"><span class="Identifier">`[]=`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">;</span> <span class="Identifier">val</span><span class="Other">:</span> <a href="system.html#sink"><span class="Identifier">sink</span></a> <span class="Identifier">T</span><span class="Other">)</span></pre></dt>
  <dd>
    
    <p>Alias for <a class="reference external" href="#incl,CritBitTree[T],string,T">incl</a>.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#[],CritBitTree[T],string">[] proc</a></li>
<li><a class="reference external" href="#[],CritBitTree[T],string_2">[] proc</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L291" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L291" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="commonPrefixLen-procs-all">
  <div id="commonPrefixLen,CritBitTree[T]">
  <dt><pre><span class="Keyword">func</span> <a href="#commonPrefixLen%2CCritBitTree%5BT%5D"><span class="Identifier">commonPrefixLen</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#int"><span class="Identifier">int</span></a> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    Returns the length of the longest common prefix of all keys in <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt>. If <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> is empty, returns 0.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">commonPrefixLen</span> <span class="Operator">==</span> <span class="DecNumber">0</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">commonPrefixLen</span> <span class="Operator">==</span> <span class="DecNumber">4</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">commonPrefixLen</span> <span class="Operator">==</span> <span class="DecNumber">3</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L510" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L510" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="contains-procs-all">
  <div id="contains,CritBitTree[T],string">
  <dt><pre><span class="Keyword">func</span> <a href="#contains%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">contains</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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#bool"><span class="Identifier">bool</span></a> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    Returns true if <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> contains the given <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt>.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">contains</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L80" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L80" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="containsOrIncl-procs-all">
  <div id="containsOrIncl,CritBitTree[void],string">
  <dt><pre><span class="Keyword">proc</span> <a href="#containsOrIncl%2CCritBitTree%5Bvoid%5D%2Cstring"><span class="Identifier">containsOrIncl</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><a href="system.html#void"><span class="Identifier">void</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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#bool"><span class="Identifier">bool</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    <p>Returns true if <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> contains the given <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt>. If the key does not exist, it is inserted into <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt>.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#incl,CritBitTree[void],string">incl proc</a></li>
<li><a class="reference external" href="#incl,CritBitTree[T],string,T">incl proc</a></li>
<li><a class="reference external" href="#containsOrIncl,CritBitTree[T],string,T">containsOrIncl proc</a></li>
<li><a class="reference external" href="#missingOrExcl,CritBitTree[T],string">missingOrExcl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
  <span class="Identifier">doAssert</span> <span class="Keyword">not</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">containsOrIncl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">contains</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
  <span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">containsOrIncl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L230" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L230" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>
<div id="containsOrIncl,CritBitTree[T],string,sinkT">
  <dt><pre><span class="Keyword">proc</span> <a href="#containsOrIncl%2CCritBitTree%5BT%5D%2Cstring%2CsinkT"><span class="Identifier">containsOrIncl</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">;</span> <span class="Identifier">val</span><span class="Other">:</span> <a href="system.html#sink"><span class="Identifier">sink</span></a> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#bool"><span class="Identifier">bool</span></a></pre></dt>
  <dd>
    
    <p>Returns true if <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> contains the given <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt>. If the key does not exist, <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span><span class="Punctuation">[</span><span class="Identifier">key</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="Identifier">val</span></span></tt> is performed.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#incl,CritBitTree[void],string">incl proc</a></li>
<li><a class="reference external" href="#incl,CritBitTree[T],string,T">incl proc</a></li>
<li><a class="reference external" href="#containsOrIncl,CritBitTree[void],string">containsOrIncl proc</a></li>
<li><a class="reference external" href="#missingOrExcl,CritBitTree[T],string">missingOrExcl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span>
  <span class="Identifier">doAssert</span> <span class="Keyword">not</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">containsOrIncl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">42</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">contains</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span>
  <span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">21</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">containsOrIncl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">42</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="DecNumber">21</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L204" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L204" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="excl-procs-all">
  <div id="excl,CritBitTree[T],string">
  <dt><pre><span class="Keyword">proc</span> <a href="#excl%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">excl</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">)</span></pre></dt>
  <dd>
    
    <p>Removes <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> (and its associated value) from the set <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt>. If the <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> does not exist, nothing happens.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#incl,CritBitTree[void],string">incl proc</a></li>
<li><a class="reference external" href="#incl,CritBitTree[T],string,T">incl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">excl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Keyword">not</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">contains</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L167" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L167" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="hasKey-procs-all">
  <div id="hasKey,CritBitTree[T],string">
  <dt><pre><span class="Keyword">func</span> <a href="#hasKey%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">hasKey</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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#bool"><span class="Identifier">bool</span></a> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    Alias for <a class="reference external" href="#contains,CritBitTree[T],string">contains</a>.
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L89" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L89" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="inc-procs-all">
  <div id="inc,CritBitTree[int],string,int">
  <dt><pre><span class="Keyword">proc</span> <a href="#inc%2CCritBitTree%5Bint%5D%2Cstring%2Cint"><span class="Identifier">inc</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</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">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">;</span> <span class="Identifier">val</span><span class="Other">:</span> <a href="system.html#int"><span class="Identifier">int</span></a> <span class="Other">=</span> <span class="DecNumber">1</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Increments <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span><span class="Punctuation">[</span><span class="Identifier">key</span><span class="Punctuation">]</span></span></tt> by <tt class="docutils literal"><span class="pre"><span class="Identifier">val</span></span></tt>.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span>
<span class="Identifier">c</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">=</span> <span class="DecNumber">1</span>
<span class="Identifier">inc</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="DecNumber">2</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L253" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L253" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="incl-procs-all">
  <div id="incl,CritBitTree[void],string">
  <dt><pre><span class="Keyword">proc</span> <a href="#incl%2CCritBitTree%5Bvoid%5D%2Cstring"><span class="Identifier">incl</span></a><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><a href="system.html#void"><span class="Identifier">void</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span>
    <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    <p>Includes <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> in <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt>.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#excl,CritBitTree[T],string">excl proc</a></li>
<li><a class="reference external" href="#incl,CritBitTree[T],string,T">incl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">hasKey</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L264" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L264" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>
<div id="incl,CritBitTree[T],string,sinkT">
  <dt><pre><span class="Keyword">proc</span> <a href="#incl%2CCritBitTree%5BT%5D%2Cstring%2CsinkT"><span class="Identifier">incl</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">;</span> <span class="Identifier">val</span><span class="Other">:</span> <a href="system.html#sink"><span class="Identifier">sink</span></a> <span class="Identifier">T</span><span class="Other">)</span></pre></dt>
  <dd>
    
    <p>Inserts <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt> with value <tt class="docutils literal"><span class="pre"><span class="Identifier">val</span></span></tt> into <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt>.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#excl,CritBitTree[T],string">excl proc</a></li>
<li><a class="reference external" href="#incl,CritBitTree[void],string">incl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span>
<span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">,</span> <span class="DecNumber">42</span><span class="Punctuation">)</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Punctuation">[</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">]</span> <span class="Operator">==</span> <span class="DecNumber">42</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L277" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L277" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="len-procs-all">
  <div id="len,CritBitTree[T]">
  <dt><pre><span class="Keyword">func</span> <a href="#len%2CCritBitTree%5BT%5D"><span class="Identifier">len</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#int"><span class="Identifier">int</span></a> {.<span class="Identifier">inline</span>.}</pre></dt>
  <dd>
    
    Returns the number of elements in <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> in O(1).
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">[</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">len</span> <span class="Operator">==</span> <span class="DecNumber">2</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L61" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L61" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="missingOrExcl-procs-all">
  <div id="missingOrExcl,CritBitTree[T],string">
  <dt><pre><span class="Keyword">proc</span> <a href="#missingOrExcl%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">missingOrExcl</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">key</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#bool"><span class="Identifier">bool</span></a></pre></dt>
  <dd>
    
    <p>Returns true if <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> does not contain the given <tt class="docutils literal"><span class="pre"><span class="Identifier">key</span></span></tt>. If the key does exist, <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">excl</span><span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">)</span></span></tt> is performed.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#excl,CritBitTree[T],string">excl proc</a></li>
<li><a class="reference external" href="#containsOrIncl,CritBitTree[T],string,T">containsOrIncl proc</a></li>
<li><a class="reference external" href="#containsOrIncl,CritBitTree[void],string">containsOrIncl proc</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
  <span class="Identifier">doAssert</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">missingOrExcl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
<span class="Keyword">block</span><span class="Punctuation">:</span>
  <span class="Keyword">var</span> <span class="Identifier">c</span><span class="Punctuation">:</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span>
  <span class="Identifier">incl</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Keyword">not</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">missingOrExcl</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span>
  <span class="Identifier">doAssert</span> <span class="Keyword">not</span> <span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">contains</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L182" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L182" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="toCritBitTree-procs-all">
  <div id="toCritBitTree,sinkopenArray[string]">
  <dt><pre><span class="Keyword">proc</span> <a href="#toCritBitTree%2CsinkopenArray%5Bstring%5D"><span class="Identifier">toCritBitTree</span></a><span class="Other">(</span><span class="Identifier">items</span><span class="Other">:</span> <a href="system.html#sink"><span class="Identifier">sink</span></a> <a href="system.html#openArray"><span class="Identifier">openArray</span></a><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="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><a href="system.html#void"><span class="Identifier">void</span></a><span class="Other">]</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">forbids</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
  <dd>
    
    Creates a new <tt class="docutils literal"><span class="pre"><span class="Identifier">CritBitTree</span></span></tt> that contains the given <tt class="docutils literal"><span class="pre"><span class="Identifier">items</span></span></tt>.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Identifier">doAssert</span> <span class="Punctuation">[</span><span class="StringLit">&quot;a&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;b&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;c&quot;</span><span class="Punctuation">]</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span> <span class="Keyword">is</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">void</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L534" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L534" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>
<div id="toCritBitTree,sinkopenArray[]">
  <dt><pre><span class="Keyword">proc</span> <a href="#toCritBitTree%2CsinkopenArray%5B%5D"><span class="Identifier">toCritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">pairs</span><span class="Other">:</span> <a href="system.html#sink"><span class="Identifier">sink</span></a> <a href="system.html#openArray"><span class="Identifier">openArray</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="Identifier">T</span><span class="Other">)</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span></pre></dt>
  <dd>
    
    Creates a new <tt class="docutils literal"><span class="pre"><span class="Identifier">CritBitTree</span></span></tt> that contains the given <tt class="docutils literal"><span class="pre"><span class="Identifier">pairs</span></span></tt>.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><span class="Identifier">doAssert</span> <span class="Punctuation">{</span><span class="StringLit">&quot;a&quot;</span><span class="Punctuation">:</span> <span class="StringLit">&quot;0&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;b&quot;</span><span class="Punctuation">:</span> <span class="StringLit">&quot;1&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;c&quot;</span><span class="Punctuation">:</span> <span class="StringLit">&quot;2&quot;</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span> <span class="Keyword">is</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span>
<span class="Identifier">doAssert</span> <span class="Punctuation">{</span><span class="StringLit">&quot;a&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">0</span><span class="Punctuation">,</span> <span class="StringLit">&quot;b&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="StringLit">&quot;c&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span> <span class="Keyword">is</span> <span class="Identifier">CritBitTree</span><span class="Punctuation">[</span><span class="Identifier">int</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L526" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L526" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>

  </dl>
</div>
<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,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#items.i%2CCritBitTree%5BT%5D"><span class="Identifier">items</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a></pre></dt>
  <dd>
    
    Alias for <a class="reference external" href="#keys.i,CritBitTree[T]">keys</a>.
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L371" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L371" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="itemsWithPrefix-iterators-all">
  <div id="itemsWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#itemsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">itemsWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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></pre></dt>
  <dd>
    
    Alias for <a class="reference external" href="#keysWithPrefix.i,CritBitTree[T],string">keysWithPrefix</a>.
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L447" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L447" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="keys-iterators-all">
  <div id="keys.i,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#keys.i%2CCritBitTree%5BT%5D"><span class="Identifier">keys</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a></pre></dt>
  <dd>
    
    Yields all keys in lexicographical order.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">keys</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L339" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L339" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="keysWithPrefix-iterators-all">
  <div id="keysWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#keysWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">keysWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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></pre></dt>
  <dd>
    
    Yields all keys starting with <tt class="docutils literal"><span class="pre"><span class="Identifier">prefix</span></span></tt>.
<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">42</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">43</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">keysWithPrefix</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L412" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L412" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="mpairs-iterators-all">
  <div id="mpairs.i,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#mpairs.i%2CCritBitTree%5BT%5D"><span class="Identifier">mpairs</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</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="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">,</span> <span class="Identifier">val</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">]</span></pre></dt>
  <dd>
    
    <p>Yields all <tt class="docutils literal"><span class="pre"><span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">,</span> <span class="Identifier">value</span><span class="Punctuation">)</span></span></tt>-pairs of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> in the lexicographical order of the corresponding keys. The yielded values can be modified.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#pairs.i,CritBitTree[T]">pairs iterator</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L389" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L389" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="mpairsWithPrefix-iterators-all">
  <div id="mpairsWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#mpairsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">mpairsWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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="Keyword">tuple</span><span class="Other">[</span>
    <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">,</span> <span class="Identifier">val</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">]</span></pre></dt>
  <dd>
    
    <p>Yields all (key, value)-pairs of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> starting with <tt class="docutils literal"><span class="pre"><span class="Identifier">prefix</span></span></tt>. The yielded values can be modified.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#pairsWithPrefix.i,CritBitTree[T],string">pairsWithPrefix iterator</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L467" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L467" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="mvalues-iterators-all">
  <div id="mvalues.i,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#mvalues.i%2CCritBitTree%5BT%5D"><span class="Identifier">mvalues</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</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="Keyword">var</span> <span class="Identifier">T</span></pre></dt>
  <dd>
    
    <p>Yields all values of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> in the lexicographical order of the corresponding keys. The values can be modified.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#values.i,CritBitTree[T]">values iterator</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L363" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L363" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="mvaluesWithPrefix-iterators-all">
  <div id="mvaluesWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#mvaluesWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">mvaluesWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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="Keyword">var</span> <span class="Identifier">T</span></pre></dt>
  <dd>
    
    <p>Yields all values of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> starting with <tt class="docutils literal"><span class="pre"><span class="Identifier">prefix</span></span></tt> of the corresponding keys. The values can be modified.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#valuesWithPrefix.i,CritBitTree[T],string">valuesWithPrefix iterator</a></li>
</ul>

    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L438" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L438" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="pairs-iterators-all">
  <div id="pairs.i,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#pairs.i%2CCritBitTree%5BT%5D"><span class="Identifier">pairs</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</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="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">,</span> <span class="Identifier">val</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">]</span></pre></dt>
  <dd>
    
    <p>Yields all <tt class="docutils literal"><span class="pre"><span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">,</span> <span class="Identifier">value</span><span class="Punctuation">)</span></span></tt>-pairs of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> in the lexicographical order of the corresponding keys.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#mpairs.i,CritBitTree[T]">mpairs iterator</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">pairs</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">:</span> <span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="Identifier">val</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">)</span><span class="Punctuation">,</span> <span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">:</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">,</span> <span class="Identifier">val</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">)</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L375" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L375" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="pairsWithPrefix-iterators-all">
  <div id="pairsWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#pairsWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">pairsWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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="Keyword">tuple</span><span class="Other">[</span>
    <span class="Identifier">key</span><span class="Other">:</span> <a href="system.html#string"><span class="Identifier">string</span></a><span class="Other">,</span> <span class="Identifier">val</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">]</span></pre></dt>
  <dd>
    
    <p>Yields all (key, value)-pairs of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> starting with <tt class="docutils literal"><span class="pre"><span class="Identifier">prefix</span></span></tt>.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#mpairsWithPrefix.i,CritBitTree[T],string">mpairsWithPrefix iterator</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">42</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">43</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">pairsWithPrefix</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">:</span> <span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">,</span> <span class="Identifier">val</span><span class="Punctuation">:</span> <span class="DecNumber">42</span><span class="Punctuation">)</span><span class="Punctuation">,</span> <span class="Punctuation">(</span><span class="Identifier">key</span><span class="Punctuation">:</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">,</span> <span class="Identifier">val</span><span class="Punctuation">:</span> <span class="DecNumber">43</span><span class="Punctuation">)</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L452" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L452" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="values-iterators-all">
  <div id="values.i,CritBitTree[T]">
  <dt><pre><span class="Keyword">iterator</span> <a href="#values.i%2CCritBitTree%5BT%5D"><span class="Identifier">values</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="system.html#lent"><span class="Identifier">lent</span></a> <span class="Identifier">T</span></pre></dt>
  <dd>
    
    <p>Yields all values of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> in the lexicographical order of the corresponding keys.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#mvalues.i,CritBitTree[T]">mvalues iterator</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">2</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">values</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="DecNumber">1</span><span class="Punctuation">,</span> <span class="DecNumber">2</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L349" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L349" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>
<div id="valuesWithPrefix-iterators-all">
  <div id="valuesWithPrefix.i,CritBitTree[T],string">
  <dt><pre><span class="Keyword">iterator</span> <a href="#valuesWithPrefix.i%2CCritBitTree%5BT%5D%2Cstring"><span class="Identifier">valuesWithPrefix</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">c</span><span class="Other">:</span> <a href="critbits.html#CritBitTree"><span class="Identifier">CritBitTree</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">prefix</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#lent"><span class="Identifier">lent</span></a> <span class="Identifier">T</span></pre></dt>
  <dd>
    
    <p>Yields all values of <tt class="docutils literal"><span class="pre"><span class="Identifier">c</span></span></tt> starting with <tt class="docutils literal"><span class="pre"><span class="Identifier">prefix</span></span></tt> of the corresponding keys.</p>
<p><strong>See also:</strong></p>
<ul class="simple"><li><a class="reference external" href="#mvaluesWithPrefix.i,CritBitTree[T],string">mvaluesWithPrefix iterator</a></li>
</ul>

<p><strong class="examples_text">Example:</strong></p>
<pre class="listing"><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="Keyword">let</span> <span class="Identifier">c</span> <span class="Operator">=</span> <span class="Punctuation">{</span><span class="StringLit">&quot;key1&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">42</span><span class="Punctuation">,</span> <span class="StringLit">&quot;key2&quot;</span><span class="Punctuation">:</span> <span class="DecNumber">43</span><span class="Punctuation">}</span><span class="Operator">.</span><span class="Identifier">toCritBitTree</span>
<span class="Identifier">doAssert</span> <span class="Identifier">toSeq</span><span class="Punctuation">(</span><span class="Identifier">c</span><span class="Operator">.</span><span class="Identifier">valuesWithPrefix</span><span class="Punctuation">(</span><span class="StringLit">&quot;key&quot;</span><span class="Punctuation">)</span><span class="Punctuation">)</span> <span class="Operator">==</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="DecNumber">42</span><span class="Punctuation">,</span> <span class="DecNumber">43</span><span class="Punctuation">]</span></pre>
    <a href="https://github.com/nim-lang/Nim/tree/devel/lib/pure/collections/critbits.nim#L423" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
<a href="https://github.com/nim-lang/Nim/edit/devel/lib/pure/collections/critbits.nim#L423" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;

  </dd>
</div>

</div>

  </dl>
</div>

  </div>
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