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<pre class=code>
<B><FONT COLOR="#0000FF">signature</FONT></B> MLTON_RANDOM =
   <B><FONT COLOR="#0000FF">sig</FONT></B>
      <B><FONT COLOR="#A020F0">val</FONT></B> alphaNumChar: unit -&gt; char
      <B><FONT COLOR="#A020F0">val</FONT></B> alphaNumString: int -&gt; string
      <B><FONT COLOR="#A020F0">val</FONT></B> rand: unit -&gt; word
      <B><FONT COLOR="#A020F0">val</FONT></B> seed: unit -&gt; word option
      <B><FONT COLOR="#A020F0">val</FONT></B> srand: word -&gt; unit
      <B><FONT COLOR="#A020F0">val</FONT></B> useed: unit -&gt; word option
   <B><FONT COLOR="#0000FF">end</FONT></B>
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<p>
 
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<p>
 <tt>alphaNumChar&nbsp;()</tt>  <br>
returns a random alphanumeric character. 
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 <tt>alphaNumString&nbsp;n</tt>  <br>
returns a string of length <tt>n</tt> of random alphanumeric  characters.  
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    <li class="gap">
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 <tt>rand&nbsp;()</tt>  <br>
returns the next pseudo-random number. 
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    <li class="gap">
<p>
 <tt>seed&nbsp;()</tt>  <br>
returns a random word from <tt>/dev/random</tt>.  Useful as an arg to  <tt>srand</tt>.  If <tt>/dev/random</tt> can not be read from,   <tt>seed&nbsp;()</tt> returns <tt>NONE</tt>.  A call to <tt>seed</tt> may block  until enough random bits are available. 
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<p>
 <tt>srand&nbsp;w</tt>  <br>
sets the seed used by <tt>rand</tt> to <tt>w</tt>. 
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    <li class="gap">
<p>
 <tt>useed&nbsp;()</tt>  <br>
returns a random word from <tt>/dev/urandom</tt>.  Useful as an arg to  <tt>srand</tt>.  If <tt>/dev/urandom</tt> can not be read from,   <tt>useed&nbsp;()</tt> returns <tt>NONE</tt>.  A call to <tt>useed</tt> will never  block -- it will instead return lower quality random bits. 
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Last edited on 2007-08-23 03:45:02 by <span title="c-71-57-91-146.hsd1.il.comcast.net"><a href="MatthewFluet">MatthewFluet</a></span>.
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