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ghc-doc-6.10.4-1mdv2010.0.i586.rpm

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>mtl-1.1.0.2: Monad transformer library</TD
><TD CLASS="topbut"
><A HREF="index.html"
>Contents</A
></TD
><TD CLASS="topbut"
><A HREF="doc-index.html"
>Index</A
></TD
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><TR
><TD CLASS="modulebar"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
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><FONT SIZE="6"
>Control.Monad.Trans</FONT
></TD
><TD ALIGN="right"
><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>portable</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>experimental</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>libraries@haskell.org</TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
><P
>The MonadTrans class.
</P
><P
>Inspired by the paper
      /Functional Programming with Overloading and
          Higher-Order Polymorphism/,
        Mark P Jones (<A HREF="http://web.cecs.pdx.edu/~mpj/"
>http://web.cecs.pdx.edu/~mpj/</A
>)
          Advanced School of Functional Programming, 1995.
</P
></TD
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><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Documentation</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>class</SPAN
>  <A NAME="t:MonadTrans"
><A NAME="t%3AMonadTrans"
></A
></A
><B
>MonadTrans</B
> t  <SPAN CLASS="keyword"
>where</SPAN
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
>Methods</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A NAME="v:lift"
><A NAME="v%3Alift"
></A
></A
><B
>lift</B
> :: <A HREF="../base/Control-Monad.html#t%3AMonad"
>Monad</A
> m =&gt; m a -&gt; t m a</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:MonadTrans')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:MonadTrans" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> <A HREF="Control-Monad-List.html#t%3AListT"
>ListT</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Error-Class.html#t%3AError"
>Error</A
> e =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-Error.html#t%3AErrorT"
>ErrorT</A
> e)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-Reader.html#t%3AReaderT"
>ReaderT</A
> r)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-State-Lazy.html#t%3AStateT"
>StateT</A
> s)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-State-Strict.html#t%3AStateT"
>StateT</A
> s)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-Writer-Lazy.html#t%3AWriterT"
>WriterT</A
> w)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-Writer-Strict.html#t%3AWriterT"
>WriterT</A
> w)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-Cont.html#t%3AContT"
>ContT</A
> r)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-RWS-Lazy.html#t%3ARWST"
>RWST</A
> r w s)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadTrans"
>MonadTrans</A
> (<A HREF="Control-Monad-RWS-Strict.html#t%3ARWST"
>RWST</A
> r w s)</TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>class</SPAN
> <A HREF="../base/Control-Monad.html#t%3AMonad"
>Monad</A
> m =&gt; <A NAME="t:MonadIO"
><A NAME="t%3AMonadIO"
></A
></A
><B
>MonadIO</B
> m  <SPAN CLASS="keyword"
>where</SPAN
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
>Methods</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A NAME="v:liftIO"
><A NAME="v%3AliftIO"
></A
></A
><B
>liftIO</B
> ::  <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
> a -&gt; m a</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:MonadIO')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:MonadIO" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> <A HREF="../base/System-IO.html#t%3AIO"
>IO</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-List.html#t%3AListT"
>ListT</A
> m)</TD
></TR
><TR
><TD CLASS="decl"
>(<A HREF="Control-Monad-Error-Class.html#t%3AError"
>Error</A
> e, <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m) =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-Error.html#t%3AErrorT"
>ErrorT</A
> e m)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-Reader.html#t%3AReaderT"
>ReaderT</A
> r m)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-State-Lazy.html#t%3AStateT"
>StateT</A
> s m)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-State-Strict.html#t%3AStateT"
>StateT</A
> s m)</TD
></TR
><TR
><TD CLASS="decl"
>(<A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w, <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m) =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-Writer-Lazy.html#t%3AWriterT"
>WriterT</A
> w m)</TD
></TR
><TR
><TD CLASS="decl"
>(<A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w, <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m) =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-Writer-Strict.html#t%3AWriterT"
>WriterT</A
> w m)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-Cont.html#t%3AContT"
>ContT</A
> r m)</TD
></TR
><TR
><TD CLASS="decl"
>(<A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w, <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m) =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-RWS-Lazy.html#t%3ARWST"
>RWST</A
> r w s m)</TD
></TR
><TR
><TD CLASS="decl"
>(<A HREF="../base/Data-Monoid.html#t%3AMonoid"
>Monoid</A
> w, <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> m) =&gt; <A HREF="Control-Monad-Trans.html#t%3AMonadIO"
>MonadIO</A
> (<A HREF="Control-Monad-RWS-Strict.html#t%3ARWST"
>RWST</A
> r w s m)</TD
></TR
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