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66 lines
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66 lines
2.3 KiB
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<title>Logtalk predicate directive: discontiguous/1</title>
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<div class="top-left">Logtalk reference manual</div>
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<div class="top-right">Predicate directive: discontiguous/1</div>
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<div class="navtop"><a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#directives">directives</a></div>
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<h2 class="codenp">discontiguous/1<span id="directives_discontiguous1"/></h2>
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<h4>Description</h4>
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<pre>discontiguous(Functor/Arity)
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discontiguous(Functor1/Arity1, Functor2/Arity2, ...)
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discontiguous([Functor1/Arity1, Functor2/Arity2, ...])
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discontiguous(Functor//Arity)
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discontiguous(Functor1//Arity1, Functor2//Arity2, ...)
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discontiguous([Functor1//Arity1, Functor2//Arity2, ...])</pre>
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<p>
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Declares discontiguous predicates and discontiguous grammar rule non-terminals. The use of this directive should be avoided as not all Prolog compilers support discontiguous predicates.
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</p>
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<h4>Template and modes</h4>
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<pre>discontiguous(+predicate_indicator_term)
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discontiguous(+non_terminal_indicator_term)</pre>
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<h4>Examples</h4>
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<pre>:- discontiguous(counter/1).
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:- discontiguous(lives/2, works/2).
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:- discontiguous([db/4, key/2, file/3]).</pre>
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<span>Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://logtalk.org">Logtalk.org</a></span><br/>
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<span>Last updated on: October 26, 2006</span>
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