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>Lava.LavaRandom</TITLE
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>chalmers-lava2000-1.1.1: Hardware description library</TD
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>Source code</A
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>Contents</A
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>Lava.LavaRandom</FONT
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>Synopsis</TD
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><TD CLASS="decl"
><SPAN CLASS="keyword"
>type</SPAN
> <A HREF="#t%3ARnd"
>Rnd</A
> = <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3AStdGen"
>StdGen</A
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><TD CLASS="decl"
><A HREF="#v%3AnewRnd"
>newRnd</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3AStdGen"
>StdGen</A
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><TD CLASS="decl"
><A HREF="#v%3Anext"
>next</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3ARandomGen"
>RandomGen</A
> g => g -> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Int.html#t%3AInt"
>Int</A
>, g)</TD
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><TD CLASS="decl"
><A HREF="#v%3Asplit"
>split</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3ARandomGen"
>RandomGen</A
> g => g -> (g, g)</TD
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>Documentation</TD
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>type</SPAN
> <A NAME="t:Rnd"
><A NAME="t%3ARnd"
></A
></A
><B
>Rnd</B
> = <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3AStdGen"
>StdGen</A
></TD
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><A HREF="src/Lava-LavaRandom.html#Rnd"
>Source</A
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><A NAME="v:newRnd"
><A NAME="v%3AnewRnd"
></A
></A
><B
>newRnd</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3AStdGen"
>StdGen</A
></TD
><TD CLASS="declbut"
><A HREF="src/Lava-LavaRandom.html#newRnd"
>Source</A
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><TD CLASS="declname"
><A NAME="v:next"
><A NAME="v%3Anext"
></A
></A
><B
>next</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3ARandomGen"
>RandomGen</A
> g => g -> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Int.html#t%3AInt"
>Int</A
>, g)</TD
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><A HREF="src/System-Random.html#next"
>Source</A
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><TD CLASS="doc"
>The <TT
><A HREF="Lava-LavaRandom.html#v%3Anext"
>next</A
></TT
> operation returns an <TT
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Int.html#t%3AInt"
>Int</A
></TT
> that is uniformly distributed
in the range returned by <TT
><A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#v%3AgenRange"
>genRange</A
></TT
> (including both end points),
and a new generator.
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><TD CLASS="declname"
><A NAME="v:split"
><A NAME="v%3Asplit"
></A
></A
><B
>split</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/haskell98-1.0.1.1/Random.html#t%3ARandomGen"
>RandomGen</A
> g => g -> (g, g)</TD
><TD CLASS="declbut"
><A HREF="src/System-Random.html#split"
>Source</A
></TD
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></TD
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><TR
><TD CLASS="doc"
>The <TT
><A HREF="Lava-LavaRandom.html#v%3Asplit"
>split</A
></TT
> operation allows one to obtain two distinct random number
generators. This is very useful in functional programs (for example, when
passing a random number generator down to recursive calls), but very
little work has been done on statistically robust implementations of
<TT
><A HREF="Lava-LavaRandom.html#v%3Asplit"
>split</A
></TT
> ([<A HREF="System-Random.html#Burton"
>System.Random</A
>, <A HREF="System-Random.html#Hellekalek"
>System.Random</A
>]
are the only examples we know of).
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