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<center><h1>Module <a href="type_Random.html">Random</a></h1></center>
<br>
<pre><span class="keyword">module</span> Random: <code class="code"><span class="keyword">sig</span></code> <a href="Random.html">..</a> <code class="code"><span class="keyword">end</span></code></pre>Pseudo-random number generators (PRNG).<br>
<hr width="100%">
<br>
<a name="6_Basicfunctions"></a>
<h6>Basic functions</h6><br>
<pre><span class="keyword">val</span> <a name="VALinit"></a>init : <code class="type">int -> unit</code></pre><div class="info">
Initialize the generator, using the argument as a seed.
The same seed will always yield the same sequence of numbers.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALfull_init"></a>full_init : <code class="type">int array -> unit</code></pre><div class="info">
Same as <a href="Random.html#VALinit"><code class="code"><span class="constructor">Random</span>.init</code></a> but takes more data as seed.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALself_init"></a>self_init : <code class="type">unit -> unit</code></pre><div class="info">
Initialize the generator with a more-or-less random seed chosen
in a system-dependent way.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALbits"></a>bits : <code class="type">unit -> int</code></pre><div class="info">
Return 30 random bits in a nonnegative integer.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint"></a>int : <code class="type">int -> int</code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.int bound</code> returns a random integer between 0 (inclusive)
and <code class="code">bound</code> (exclusive). <code class="code">bound</code> must be greater than 0 and less
than 2<sup class="superscript">30</sup>.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint32"></a>int32 : <code class="type"><a href="Int32.html#TYPEt">Int32.t</a> -> <a href="Int32.html#TYPEt">Int32.t</a></code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.int32 bound</code> returns a random integer between 0 (inclusive)
and <code class="code">bound</code> (exclusive). <code class="code">bound</code> must be greater than 0.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALnativeint"></a>nativeint : <code class="type"><a href="Nativeint.html#TYPEt">Nativeint.t</a> -> <a href="Nativeint.html#TYPEt">Nativeint.t</a></code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.nativeint bound</code> returns a random integer between 0 (inclusive)
and <code class="code">bound</code> (exclusive). <code class="code">bound</code> must be greater than 0.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint64"></a>int64 : <code class="type"><a href="Int64.html#TYPEt">Int64.t</a> -> <a href="Int64.html#TYPEt">Int64.t</a></code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.int64 bound</code> returns a random integer between 0 (inclusive)
and <code class="code">bound</code> (exclusive). <code class="code">bound</code> must be greater than 0.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALfloat"></a>float : <code class="type">float -> float</code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.float bound</code> returns a random floating-point number
between 0 (inclusive) and <code class="code">bound</code> (exclusive). If <code class="code">bound</code> is
negative, the result is negative or zero. If <code class="code">bound</code> is 0,
the result is 0.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALbool"></a>bool : <code class="type">unit -> bool</code></pre><div class="info">
<code class="code"><span class="constructor">Random</span>.bool ()</code> returns <code class="code"><span class="keyword">true</span></code> or <code class="code"><span class="keyword">false</span></code> with probability 0.5 each.<br>
</div>
<br>
<a name="6_Advancedfunctions"></a>
<h6>Advanced functions</h6><br>
<br>
The functions from module <code class="code"><span class="constructor">State</span></code> manipulate the current state
of the random generator explicitely.
This allows using one or several deterministic PRNGs,
even in a multi-threaded program, without interference from
other parts of the program.<br>
<pre><span class="keyword">module</span> <a href="Random.State.html">State</a>: <code class="code"><span class="keyword">sig</span></code> <a href="Random.State.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><pre><span class="keyword">val</span> <a name="VALget_state"></a>get_state : <code class="type">unit -> <a href="Random.State.html#TYPEt">State.t</a></code></pre><div class="info">
Return the current state of the generator used by the basic functions.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALset_state"></a>set_state : <code class="type"><a href="Random.State.html#TYPEt">State.t</a> -> unit</code></pre><div class="info">
Set the state of the generator used by the basic functions.<br>
</div>
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