@ciao-lang/ts-ciao-interface

<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1"/><meta name="theme-color" content="#273f79"/><link rel="stylesheet" href="lpdoc.css" type="text/css"/><script type="text/javascript" src="lpdoc.js"></script><title>Lazy evaluation library — The Ciao System v1.22</title></head><body><div class="lpdoc-page fixleftbar"><a href="#" id="sidebar-toggle-button" class="lpdoc-navbutton">☰</a><div id="sidebar" class="lpdoc-sidebar"><div style="height: 40px; margin-left: auto; margin-right: auto"><img src="ciao-logo_autofig.png" width=auto height=100%></div><div class="lpdoc-nav"><a class="lpdoc-navbutton" href="lazy_doc.html">↑</a><a class="lpdoc-navbutton" href="lazy_doc.html">←</a><a class="lpdoc-navbutton" href="bf_doc.html">→</a><a class="lpdoc-navbutton" href="ciaosearch.html">🔍</a><a href="ciaofulltoc.html">TOC</a></div><hr></hr><ul class="lpdoc-itemize-sectpath"><li><a href="ciao.html">The Ciao System</a> » </li><li><a href="ExtendLang.html">PART IV - Language extensions</a> » </li><li><a href="lazy_doc.html">Lazy evaluation</a> » </li><li><a href="">Lazy evaluation library</a></li></ul><hr></hr>ON THIS PAGE<ul><li><a href="#Usage and interface">Usage and interface</a></li><li><a href="#Documentation on exports">Documentation on exports</a></li><li><a href="#Documentation on imports">Documentation on imports</a></li></ul></div><div class="lpdoc-main"><div id=""><h1>Lazy evaluation library</h1><a class="lpdoc-idx-anchor" href="ciaosearch.html#lazy_lib"></a> Author(s): <a class="lpdoc-idx-anchor" id="Amadeo Casas" href="ciaosearch.html#Amadeo Casas">Amadeo Casas</a>, <a class="lpdoc-idx-anchor" id="Jose F. Morales" href="ciaosearch.html#Jose F. Morales">Jose F. Morales</a>. This module provides several predicates that make easier to develop predicates that will be executed lazily. <div id="Usage and interface"><h2>Usage and interface</h2><div class="lpdoc-cartouche"><ul><li>Library usage: <tt>:- use_module(library(lazy/lazy_lib)).</tt><li>Exports: <ul class="lpdoc-itemize-minus"><li>Predicates: <a class="lpdoc-idx-anchor" id="0" href="#nums_from/2"><tt>nums_from/2</tt></a>, <a class="lpdoc-idx-anchor" id="1" href="#nums_from_inc/3"><tt>nums_from_inc/3</tt></a>, <a class="lpdoc-idx-anchor" id="2" href="#repeat/2"><tt>repeat/2</tt></a>, <a class="lpdoc-idx-anchor" id="3" href="#cycle/2"><tt>cycle/2</tt></a>, <a class="lpdoc-idx-anchor" id="4" href="#take/3"><tt>take/3</tt></a>, <a class="lpdoc-idx-anchor" id="5" href="#takeWhile/3"><tt>takeWhile/3</tt></a>, <a class="lpdoc-idx-anchor" id="6" href="#drop/3"><tt>drop/3</tt></a>, <a class="lpdoc-idx-anchor" id="7" href="#dropWhile/3"><tt>dropWhile/3</tt></a>, <a class="lpdoc-idx-anchor" id="8" href="#splitAt/3"><tt>splitAt/3</tt></a>, <a class="lpdoc-idx-anchor" id="9" href="#span/3"><tt>span/3</tt></a>, <a class="lpdoc-idx-anchor" id="10" href="#tail/2"><tt>tail/2</tt></a>, <a class="lpdoc-idx-anchor" id="11" href="#lazy_map/3"><tt>lazy_map/3</tt></a>, <a class="lpdoc-idx-anchor" id="12" href="#lazy_foldr/4"><tt>lazy_foldr/4</tt></a>, <a class="lpdoc-idx-anchor" id="13" href="#lazy_foldl/4"><tt>lazy_foldl/4</tt></a>, <a class="lpdoc-idx-anchor" id="14" href="#zipWith/4"><tt>zipWith/4</tt></a>. </ul></ul></div></div><div id="Documentation on exports"><h2>Documentation on exports</h2><div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="nums_from/2" href="ciaosearch.html#nums_from/2">nums_from/2</a></div><div class="lpdoc-deftext">Usage:<tt>nums_from(X,List)</tt> List is unified with an infinite list of successive numbers starting in X<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="15" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="16" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. (<a class="lpdoc-idx-anchor" id="17" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)X is an integer. (<a class="lpdoc-idx-anchor" id="18" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="19" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)X is an integer. (<a class="lpdoc-idx-anchor" id="20" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)List is a list of ints. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="nums_from_inc/3" href="ciaosearch.html#nums_from_inc/3">nums_from_inc/3</a></div><div class="lpdoc-deftext">Usage:<tt>nums_from_inc(X,Y,List)</tt> List is unified with an infinite list of successive numbers starting in X with an increment of Y<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="21" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="22" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)Y is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="23" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. (<a class="lpdoc-idx-anchor" id="24" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)X is an integer. (<a class="lpdoc-idx-anchor" id="25" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)Y is an integer. (<a class="lpdoc-idx-anchor" id="26" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="27" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)X is an integer. (<a class="lpdoc-idx-anchor" id="28" href="basic_props.html#int/1"><tt>basic_props:int/1</tt></a>)Y is an integer. (<a class="lpdoc-idx-anchor" id="29" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)List is a list of ints. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="repeat/2" href="ciaosearch.html#repeat/2">repeat/2</a></div><div class="lpdoc-deftext">Usage:<tt>repeat(X,List)</tt> List is unified with an infinite list of the term Y<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="30" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="31" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. (<a class="lpdoc-idx-anchor" id="32" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)X is any term. (<a class="lpdoc-idx-anchor" id="33" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="34" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)X is any term. (<a class="lpdoc-idx-anchor" id="35" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)List is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="cycle/2" href="ciaosearch.html#cycle/2">cycle/2</a></div><div class="lpdoc-deftext">Usage:<tt>cycle(X,List)</tt> List is unified with an infinite list of the term Y repeated infinite times<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="36" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="37" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. (<a class="lpdoc-idx-anchor" id="38" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)X is any term. (<a class="lpdoc-idx-anchor" id="39" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)List is a free variable. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="40" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)X is any term. (<a class="lpdoc-idx-anchor" id="41" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)List is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="take/3" href="ciaosearch.html#take/3">take/3</a></div><div class="lpdoc-deftext">Usage:<tt>take(X,ListA,ListR)</tt> ListR is unified with the first X elements of the infinite list ListA<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="42" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="43" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="44" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="45" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="46" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="47" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="48" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="49" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="50" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="takeWhile/3" href="ciaosearch.html#takeWhile/3">takeWhile/3</a></div><div class="lpdoc-deftext">Usage:<tt>takeWhile(P,ListA,ListR)</tt> ListR is unified with the first elements of the infinite list ListA while the condition P is true<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="51" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="52" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="53" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="54" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="55" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="56" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="57" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="58" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="59" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="drop/3" href="ciaosearch.html#drop/3">drop/3</a></div><div class="lpdoc-deftext">Usage:<tt>drop(X,ListA,ListR)</tt> ListR is unified with the infinite list ListA dropping the first X elements<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="60" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="61" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="62" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="63" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="64" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="65" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="66" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="67" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="68" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="dropWhile/3" href="ciaosearch.html#dropWhile/3">dropWhile/3</a></div><div class="lpdoc-deftext">Usage:<tt>dropWhile(P,ListA,ListR)</tt> ListR is unified with the infinite list ListA dropping the first elements while the condition P is true<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="69" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="70" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="71" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="72" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="73" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="74" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="75" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="76" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="77" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="splitAt/3" href="ciaosearch.html#splitAt/3">splitAt/3</a></div><div class="lpdoc-deftext">Usage:<tt>splitAt(X,ListA,Res)</tt> Res is unified with a tuple of lists where the first list is composed by the first X elements of the list ListA and the second list is composed by the rest of the elements of ListA<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="78" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)X is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="79" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="80" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)Res is a free variable. (<a class="lpdoc-idx-anchor" id="81" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="82" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="83" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)Res is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="84" href="ciaosearch.html#counter/1"><tt>lazy_lib:counter/1</tt></a>)X is a counter. (<a class="lpdoc-idx-anchor" id="85" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="86" href="ciaosearch.html#tuple_of_lists/1"><tt>lazy_lib:tuple_of_lists/1</tt></a>)This type represents a tuple of lists. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="span/3" href="ciaosearch.html#span/3">span/3</a></div><div class="lpdoc-deftext">Usage:<tt>span(P,ListA,Res)</tt> Res is unified with a tuple of lists where the first list is composed by the elements of ListA which verify the condition P and the second list is composed by the rest of the elements of the initial list<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="87" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="88" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="89" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)Res is a free variable. (<a class="lpdoc-idx-anchor" id="90" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="91" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="92" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)Res is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="93" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="94" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="95" href="ciaosearch.html#tuple_of_lists/1"><tt>lazy_lib:tuple_of_lists/1</tt></a>)This type represents a tuple of lists. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="tail/2" href="ciaosearch.html#tail/2">tail/2</a></div><div class="lpdoc-deftext">Usage:<tt>tail(ListA,ListR)</tt> ListR is unified with the tail of the infinite list ListA<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="96" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="97" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="98" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="99" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="100" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="101" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul></div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="lazy_map/3" href="ciaosearch.html#lazy_map/3">lazy_map/3</a></div><div class="lpdoc-deftext">Usage:<tt>lazy_map(ListA,P,ListR)</tt> Version of the map/3 predicate to be executed lazily<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="102" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="103" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="104" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="105" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="106" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="107" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="108" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="109" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="110" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul> Meta-predicate with arguments: <tt>lazy_map(?,pred(2),?)</tt>. </div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="lazy_foldr/4" href="ciaosearch.html#lazy_foldr/4">lazy_foldr/4</a></div><div class="lpdoc-deftext">Usage:<tt>lazy_foldr(P,Xs,V0,V)</tt> Lazy version of <a class="lpdoc-idx-anchor" id="111" href="hiordlib.html#foldr/4"><tt>foldr/4</tt></a><ul class="lpdoc-itemize-minus"><li>Call and exit should be compatible with: (<a class="lpdoc-idx-anchor" id="112" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="113" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)Xs is a list of terms. (<a class="lpdoc-idx-anchor" id="114" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)V0 is any term. (<a class="lpdoc-idx-anchor" id="115" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)V is any term. <li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="116" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="117" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)Xs is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="118" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)V0 is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="119" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)V is a free variable. </ul> Meta-predicate with arguments: <tt>lazy_foldr(pred(3),?,?,?)</tt>. </div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="lazy_foldl/4" href="ciaosearch.html#lazy_foldl/4">lazy_foldl/4</a></div><div class="lpdoc-deftext">Usage:<tt>lazy_foldl(P,Xs,V0,V)</tt> Lazy version of <a class="lpdoc-idx-anchor" id="120" href="hiordlib.html#foldl/4"><tt>foldl/4</tt></a><ul class="lpdoc-itemize-minus"><li>Call and exit should be compatible with: (<a class="lpdoc-idx-anchor" id="121" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="122" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)Xs is a list of terms. (<a class="lpdoc-idx-anchor" id="123" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)V0 is any term. (<a class="lpdoc-idx-anchor" id="124" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)V is any term. <li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="125" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="126" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)Xs is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="127" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)V0 is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="128" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)V is a free variable. </ul> Meta-predicate with arguments: <tt>lazy_foldl(pred(3),?,?,?)</tt>. </div></div> <div><div class="lpdoc-defname">PREDICATE<a class="lpdoc-idx-anchor" id="zipWith/4" href="ciaosearch.html#zipWith/4">zipWith/4</a></div><div class="lpdoc-deftext">Usage:<tt>zipWith(P,ListA,ListB,ListR)</tt> ListR is a list whose elements are calculated from the function P and the elements of input lists ListA and ListB occuring at the same position in both lists<ul class="lpdoc-itemize-minus"><li>The following properties should hold at call time: (<a class="lpdoc-idx-anchor" id="129" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)P is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="130" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListA is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="131" href="term_typing.html#nonvar/1"><tt>term_typing:nonvar/1</tt></a>)ListB is currently a term which is not a free variable. (<a class="lpdoc-idx-anchor" id="132" href="term_typing.html#var/1"><tt>term_typing:var/1</tt></a>)ListR is a free variable. (<a class="lpdoc-idx-anchor" id="133" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="134" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="135" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListB is a list of terms. (<a class="lpdoc-idx-anchor" id="136" href="basic_props.html#term/1"><tt>basic_props:term/1</tt></a>)ListR is any term. <li>The following properties should hold upon exit: (<a class="lpdoc-idx-anchor" id="137" href="basic_props.html#cgoal/1"><tt>basic_props:cgoal/1</tt></a>)P is a term which represents a goal, i.e., an atom or a structure. (<a class="lpdoc-idx-anchor" id="138" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListA is a list of terms. (<a class="lpdoc-idx-anchor" id="139" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListB is a list of terms. (<a class="lpdoc-idx-anchor" id="140" href="basic_props.html#list/2"><tt>basic_props:list/2</tt></a>)ListR is a list of terms. </ul> Meta-predicate with arguments: <tt>zipWith(pred(3),?,?,?)</tt>. </div></div> </div><div id="Documentation on imports"><h2>Documentation on imports</h2>This module has the following direct dependencies:<ul class="lpdoc-itemize-minus"><li>System library modules: <a class="lpdoc-idx-anchor" id="141" href="freeze.html"><tt>freeze</tt></a>, <a class="lpdoc-idx-anchor" id="142" href="ciaosearch.html#arithpreds"><tt>arithpreds</tt></a>. <li>Packages: <a class="lpdoc-idx-anchor" id="143" href="ciaosearch.html#prelude"><tt>prelude</tt></a>, <a class="lpdoc-idx-anchor" id="144" href="ciaosearch.html#initial"><tt>initial</tt></a>, <a class="lpdoc-idx-anchor" id="145" href="condcomp_doc.html"><tt>condcomp</tt></a>, <a class="lpdoc-idx-anchor" id="146" href="regtypes_doc.html"><tt>regtypes</tt></a>, <a class="lpdoc-idx-anchor" id="147" href="fsyntax_doc.html"><tt>fsyntax</tt></a>, <a class="lpdoc-idx-anchor" id="148" href="assertions_doc.html"><tt>assertions</tt></a>, <a class="lpdoc-idx-anchor" id="149" href="ciaosearch.html#assertions/assertions_basic"><tt>assertions/assertions_basic</tt></a>, <a class="lpdoc-idx-anchor" id="150" href="basicmodes_doc.html"><tt>basicmodes</tt></a>, <a class="lpdoc-idx-anchor" id="151" href="ciaosearch.html#hiord"><tt>hiord</tt></a>, <a class="lpdoc-idx-anchor" id="152" href="lazy_doc.html"><tt>lazy</tt></a>. </ul></div></div><div class="lpdoc-footer">Generated with LPdoc using Ciao</div></div><div class="lpdoc-clearer"></div></div></body></html>