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<h1>Module <a href="type_BitSet.html">BitSet</a></h1>

<pre><span id="MODULEBitSet"><span class="keyword">module</span> BitSet</span>: <code class="code">sig</code> <a href="BitSet.html">..</a> <code class="code">end</code></pre><div class="info module top">
<div class="info-desc">
<p>Efficient bit sets.</p>

<p>A bitset is an array of boolean values that can be accessed with indexes
 like an array but provides a better memory usage (divided by 8) for a
 very small speed trade-off.</p>
</div>
</div>
<hr width="100%">

<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> </pre>


<pre><span id="EXCEPTIONNegative_index"><span class="keyword">exception</span> Negative_index</span> <span class="keyword">of</span> <code class="type">string</code></pre>
<div class="info ">
<div class="info-desc">
<p>When a negative bit value is used for one of the BitSet functions,
 this exception is raised with the name of the function.</p>
</div>
</div>

<pre><span id="VALempty"><span class="keyword">val</span> empty</span> : <code class="type">unit -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Create an empty bitset of size 0, the bitset will automatically expand
 when needed.</p>
</div>
</div>

<pre><span id="VALcreate"><span class="keyword">val</span> create</span> : <code class="type">int -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Create an empty bitset with an initial size (in number of bits).</p>
</div>
</div>

<pre><span id="VALcopy"><span class="keyword">val</span> copy</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Copy a bitset : further modifications of first one will not affect the
 copy.</p>
</div>
</div>

<pre><span id="VALclone"><span class="keyword">val</span> clone</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Same as <code class="code">copy</code></p>
</div>
</div>

<pre><span id="VALset"><span class="keyword">val</span> set</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">set s n</code> sets the nth-bit in the bitset <code class="code">s</code> to true.</p>
</div>
</div>

<pre><span id="VALunset"><span class="keyword">val</span> unset</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">unset s n</code> sets the nth-bit in the bitset <code class="code">s</code> to false.</p>
</div>
</div>

<pre><span id="VALput"><span class="keyword">val</span> put</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> bool -> int -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">put s v n</code> sets the nth-bit in the bitset <code class="code">s</code> to <code class="code">v</code>.</p>
</div>
</div>

<pre><span id="VALtoggle"><span class="keyword">val</span> toggle</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">toggle s n</code> changes the nth-bit value in the bitset <code class="code">s</code>.</p>
</div>
</div>

<pre><span id="VALis_set"><span class="keyword">val</span> is_set</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int -> bool</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">is_set s n</code> returns true if nth-bit in the bitset <code class="code">s</code> is set,
 or false otherwise.</p>
</div>
</div>

<pre><span id="VALcompare"><span class="keyword">val</span> compare</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">compare s1 s2</code> compares two bitsets. Highest bit indexes are
 compared first.</p>
</div>
</div>

<pre><span id="VALequals"><span class="keyword">val</span> equals</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> bool</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">equals s1 s2</code> returns true if, and only if, all bits values in s1 are
  the same as in s2.</p>
</div>
</div>

<pre><span id="VALcount"><span class="keyword">val</span> count</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">count s</code> returns the number of bits set in the bitset <code class="code">s</code>.</p>
</div>
</div>

<pre><span id="VALenum"><span class="keyword">val</span> enum</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> int <a href="Enum.html#TYPEt">Enum.t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">enum s</code> returns an enumeration of bits which are set
  in the bitset <code class="code">s</code>.</p>
</div>
</div>

<pre><span id="VALintersect"><span class="keyword">val</span> intersect</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">intersect s t</code> sets <code class="code">s</code> to the intersection of the sets <code class="code">s</code> and <code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALunite"><span class="keyword">val</span> unite</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">unite s t</code> sets <code class="code">s</code> to the union of the sets <code class="code">s</code> and <code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALdifferentiate"><span class="keyword">val</span> differentiate</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">differentiate s t</code> removes the elements of <code class="code">t</code> from <code class="code">s</code>.</p>
</div>
</div>

<pre><span id="VALdifferentiate_sym"><span class="keyword">val</span> differentiate_sym</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">differentiate_sym s t</code> sets <code class="code">s</code> to the symmetrical difference of the
  sets <code class="code">s</code> and <code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALinter"><span class="keyword">val</span> inter</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">inter s t</code> returns the intersection of sets <code class="code">s</code> and <code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALunion"><span class="keyword">val</span> union</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">union s t</code> return the union of sets <code class="code">s</code>  and <code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALdiff"><span class="keyword">val</span> diff</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">diff s t</code> returns <code class="code">s</code>-<code class="code">t</code>.</p>
</div>
</div>

<pre><span id="VALsym_diff"><span class="keyword">val</span> sym_diff</span> : <code class="type"><a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a> -> <a href="BitSet.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">sym_diff s t</code> returns the symmetrical difference of <code class="code">s</code> and <code class="code">t</code>.</p>
</div>
</div>
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