<!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 >Control.Strategies.DeepSeq</TITLE ><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css" ><SCRIPT SRC="haddock.js" TYPE="text/javascript" ></SCRIPT ></HEAD ><BODY ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="topbar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><IMG SRC="haskell_icon.gif" WIDTH="16" HEIGHT="16" ALT=" " ></TD ><TD CLASS="title" >hxt-7.1: </TD ><TD CLASS="topbut" ><A HREF="index.html" >Contents</A ></TD ><TD CLASS="topbut" ><A HREF="doc-index.html" >Index</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="modulebar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><FONT SIZE="6" >Control.Strategies.DeepSeq</FONT ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Description</TD ></TR ><TR ><TD CLASS="doc" ><P >stolen from comp.lang.functional from Dean Herington </P ><P >DeepSeq.lhs -- deep strict evaluation support </P ><P >The <TT ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A ></TT > class provides a method <TT ><A HREF="Control-Strategies-DeepSeq.html#v%3AdeepSeq" >deepSeq</A ></TT > that is similar to seq except that it forces deep evaluation of its first argument before returning its second argument. </P ><P >Instances of <TT ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A ></TT > are provided for Prelude types. Other instances must be supplied by users of this module. </P ><P >$Id: DeepSeq.lhs,v 1.5 2002<EM >04</EM >01 20:58:24 heringto Exp $ </P ></TD ></TR ><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%3ADeepSeq" ></A ><B >DeepSeq</B > a <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%3AdeepSeq" ></A ><B >deepSeq</B > :: a -> b -> b</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:DeepSeq')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:DeepSeq" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Bool</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Char</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3ADTDElem" >DTDElem</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Double</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Float</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Int</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Integer</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > Ordering</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AQName" >QName</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > <A HREF="Text-XML-HXT-Arrow-XmlIOStateArrow.html#t%3AXIOSysState" >XIOSysState</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXNode" >XNode</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > ()</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b)</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > c) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b, c)</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > c, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > d) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b, c, d)</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > c, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > d, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > e) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b, c, d, e)</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > c, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > d, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > e, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > f) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b, c, d, e, f)</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > c, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > d, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > e, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > f, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > g) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a, b, c, d, e, f, g)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (a -> b)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (IO a)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (Maybe a)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (<A HREF="Data-Tree-NTree-TypeDefs.html#t%3ANTree" >NTree</A > a)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > us => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (<A HREF="Text-XML-HXT-Arrow-XmlIOStateArrow.html#t%3AXIOState" >XIOState</A > us)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > [a]</TD ></TR ><TR ><TD CLASS="decl" >(<A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a, <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > b) => <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > (Either a b)</TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v%3A%24%21%21" ></A ><B >($!!)</B > :: <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a => (a -> b) -> a -> b</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v%3Astrict" ></A ><B >strict</B > :: <A HREF="Control-Strategies-DeepSeq.html#t%3ADeepSeq" >DeepSeq</A > a => a -> a</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="botbar" >Produced by <A HREF="http://www.haskell.org/haddock/" >Haddock</A > version 0.8</TD ></TR ></TABLE ></BODY ></HTML >
