<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--Rendered using the Haskell Html Library v0.2--> <HTML ><HEAD ><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" ><TITLE >Prelude</TITLE ><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css" ><SCRIPT SRC="haddock-util.js" TYPE="text/javascript" ></SCRIPT ></HEAD ><BODY ><DIV CLASS="outer" ><DIV CLASS="mini-topbar" >Prelude</DIV ><DIV CLASS="mini-synopsis" ><H1 >Standard types, classes and related functions </H1 > <H2 >Basic data types </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%26%26" TARGET="main" >(&&)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%7C%7C" TARGET="main" >(||)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Anot" TARGET="main" >not</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aotherwise" TARGET="main" >otherwise</A ></DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >data</SPAN > <A HREF="Prelude.html#t%3AMaybe" TARGET="main" >Maybe</A > a</DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Amaybe" TARGET="main" >maybe</A ></DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >data</SPAN > <A HREF="Prelude.html#t%3AEither" TARGET="main" >Either</A > a b</DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aeither" TARGET="main" >either</A ></DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3AString" TARGET="main" >String</A > </DIV > <H3 >Tuples </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afst" TARGET="main" >fst</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Asnd" TARGET="main" >snd</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Acurry" TARGET="main" >curry</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Auncurry" TARGET="main" >uncurry</A ></DIV > <H2 >Basic type classes </H2 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AEq" TARGET="main" >Eq</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AOrd" TARGET="main" >Ord</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AEnum" TARGET="main" >Enum</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3ABounded" TARGET="main" >Bounded</A > a</DIV > <H2 >Numbers </H2 > <H3 >Numeric types </H3 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3ARational" TARGET="main" >Rational</A > </DIV > <H3 >Numeric type classes </H3 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3ANum" TARGET="main" >Num</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AReal" TARGET="main" >Real</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AIntegral" TARGET="main" >Integral</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AFractional" TARGET="main" >Fractional</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AFloating" TARGET="main" >Floating</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3ARealFrac" TARGET="main" >RealFrac</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3ARealFloat" TARGET="main" >RealFloat</A > a</DIV > <H3 >Numeric functions </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Asubtract" TARGET="main" >subtract</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aeven" TARGET="main" >even</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aodd" TARGET="main" >odd</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Agcd" TARGET="main" >gcd</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alcm" TARGET="main" >lcm</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%5E" TARGET="main" >(^)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%5E%5E" TARGET="main" >(^^)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AfromIntegral" TARGET="main" >fromIntegral</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3ArealToFrac" TARGET="main" >realToFrac</A ></DIV > <H2 >Monads and functors </H2 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AMonad" TARGET="main" >Monad</A > m</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AFunctor" TARGET="main" >Functor</A > f</DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AmapM" TARGET="main" >mapM</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AmapM_" TARGET="main" >mapM_</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Asequence" TARGET="main" >sequence</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Asequence_" TARGET="main" >sequence_</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%3D%3C%3C" TARGET="main" >(=<<)</A ></DIV > <H2 >Miscellaneous functions </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aid" TARGET="main" >id</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aconst" TARGET="main" >const</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A." TARGET="main" >(.)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aflip" TARGET="main" >flip</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%24" TARGET="main" >($)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Auntil" TARGET="main" >until</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AasTypeOf" TARGET="main" >asTypeOf</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aerror" TARGET="main" >error</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aundefined" TARGET="main" >undefined</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%24%21" TARGET="main" >($!)</A ></DIV > <H1 >List operations </H1 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Amap" TARGET="main" >map</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%2B%2B" TARGET="main" >(++)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afilter" TARGET="main" >filter</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ahead" TARGET="main" >head</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alast" TARGET="main" >last</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Atail" TARGET="main" >tail</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ainit" TARGET="main" >init</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Anull" TARGET="main" >null</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alength" TARGET="main" >length</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3A%21%21" TARGET="main" >(!!)</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Areverse" TARGET="main" >reverse</A ></DIV > <H2 >Reducing lists (folds) </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afoldl" TARGET="main" >foldl</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afoldl1" TARGET="main" >foldl1</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afoldr" TARGET="main" >foldr</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Afoldr1" TARGET="main" >foldr1</A ></DIV > <H3 >Special folds </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aand" TARGET="main" >and</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aor" TARGET="main" >or</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aany" TARGET="main" >any</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aall" TARGET="main" >all</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Asum" TARGET="main" >sum</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aproduct" TARGET="main" >product</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aconcat" TARGET="main" >concat</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AconcatMap" TARGET="main" >concatMap</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Amaximum" TARGET="main" >maximum</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aminimum" TARGET="main" >minimum</A ></DIV > <H2 >Building lists </H2 > <H3 >Scans </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ascanl" TARGET="main" >scanl</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ascanl1" TARGET="main" >scanl1</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ascanr" TARGET="main" >scanr</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ascanr1" TARGET="main" >scanr1</A ></DIV > <H3 >Infinite lists </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aiterate" TARGET="main" >iterate</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Arepeat" TARGET="main" >repeat</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Areplicate" TARGET="main" >replicate</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Acycle" TARGET="main" >cycle</A ></DIV > <H2 >Sublists </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Atake" TARGET="main" >take</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Adrop" TARGET="main" >drop</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AsplitAt" TARGET="main" >splitAt</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AtakeWhile" TARGET="main" >takeWhile</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AdropWhile" TARGET="main" >dropWhile</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aspan" TARGET="main" >span</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Abreak" TARGET="main" >break</A ></DIV > <H2 >Searching lists </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aelem" TARGET="main" >elem</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AnotElem" TARGET="main" >notElem</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alookup" TARGET="main" >lookup</A ></DIV > <H2 >Zipping and unzipping lists </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Azip" TARGET="main" >zip</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Azip3" TARGET="main" >zip3</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AzipWith" TARGET="main" >zipWith</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AzipWith3" TARGET="main" >zipWith3</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aunzip" TARGET="main" >unzip</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aunzip3" TARGET="main" >unzip3</A ></DIV > <H2 >Functions on strings </H2 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alines" TARGET="main" >lines</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Awords" TARGET="main" >words</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aunlines" TARGET="main" >unlines</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aunwords" TARGET="main" >unwords</A ></DIV > <H1 >Converting to and from <TT >String</TT > </H1 > <H2 >Converting to <TT >String</TT > </H2 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3AShowS" TARGET="main" >ShowS</A > </DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3AShow" TARGET="main" >Show</A > a</DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ashows" TARGET="main" >shows</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AshowChar" TARGET="main" >showChar</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AshowString" TARGET="main" >showString</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AshowParen" TARGET="main" >showParen</A ></DIV > <H2 >Converting from <TT >String</TT > </H2 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3AReadS" TARGET="main" >ReadS</A > a</DIV > <DIV CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Prelude.html#t%3ARead" TARGET="main" >Read</A > a</DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Areads" TARGET="main" >reads</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AreadParen" TARGET="main" >readParen</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aread" TARGET="main" >read</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Alex" TARGET="main" >lex</A ></DIV > <H1 >Basic Input and output </H1 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >data</SPAN > <A HREF="Prelude.html#t%3AIO" TARGET="main" >IO</A > a</DIV > <H2 >Simple I/O operations </H2 > <H3 >Output functions </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AputChar" TARGET="main" >putChar</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AputStr" TARGET="main" >putStr</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AputStrLn" TARGET="main" >putStrLn</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Aprint" TARGET="main" >print</A ></DIV > <H3 >Input functions </H3 > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AgetChar" TARGET="main" >getChar</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AgetLine" TARGET="main" >getLine</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AgetContents" TARGET="main" >getContents</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Ainteract" TARGET="main" >interact</A ></DIV > <H3 >Files </H3 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3AFilePath" TARGET="main" >FilePath</A > </DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AreadFile" TARGET="main" >readFile</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AwriteFile" TARGET="main" >writeFile</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AappendFile" TARGET="main" >appendFile</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AreadIO" TARGET="main" >readIO</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AreadLn" TARGET="main" >readLn</A ></DIV > <H2 >Exception handling in the I/O monad </H2 > <DIV CLASS="decl" ><SPAN CLASS="keyword" >type</SPAN > <A HREF="Prelude.html#t%3AIOError" TARGET="main" >IOError</A > </DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AioError" TARGET="main" >ioError</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3AuserError" TARGET="main" >userError</A ></DIV > <DIV CLASS="decl" ><A HREF="Prelude.html#v%3Acatch" TARGET="main" >catch</A ></DIV ></DIV ></DIV ></BODY ></HTML >
distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
70ec89744a04da80369b4702b2c37256
>
files
>
365
