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< title > Logtalk predicate directive: alias/3< / title >
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< div class = "top-left" > Logtalk reference manual< / div >
< div class = "top-right" > Predicate directive: alias/3< / 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 = "code" > alias/3< / h2 >
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< h4 > Description< / h4 >
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< pre > alias(Entity, Predicate, Alias)
alias(Entity, NonTerminal, Alias)< / pre >
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< p >
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Declares predicate and grammar rule non-terminal aliases. A predicate (non-terminal) alias is an alternative name for a predicate (non-terminal) declared or defined in an implemented protocol, an imported category, an extended prototype, an instantiated class, or a specialized class. Predicate alias may be used to solve conflicts between imported or inherited predicates. This directive may be used in objects, protocols, and categories.
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< / p >
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< h4 > Template and modes< / h4 >
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< pre > alias(@entity_identifier, +predicate_indicator, +predicate_indicator)
alias(@entity_identifier, +non_terminal_indicator, +non_terminal_indicator)< / pre >
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< h4 > Examples< / h4 >
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< pre > :- alias(list, member/2, list_member/2).
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:- alias(set, member/2, set_member/2).
:- alias(words, singular//0, peculiar//0).< / pre >
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< span class = "date" > Last updated on: January 20, 2006< / span >
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