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Corrected meta_predicate/1 description and examples.

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Paulo Moura 2010-11-05 22:25:32 +00:00
parent 5df973a66f
commit 1ff86ea4e5
1 changed files with 6 additions and 4 deletions
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10
docs/yap.tex
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@ -2339,14 +2339,16 @@ with the current source module:
@cnindex meta_predicate/1 (directive)
Each @var{Gi} is a mode specification.
If the argument is @code{:} or an integer, the argument is a call and
must be expanded. Otherwise, the argument is not expanded. Note
that the system already includes declarations for all built-ins.
If the argument is @code{:}, it does not refer directly to a predicate
but must be module expanded. If the argument is an integer, the argument
is a goal or a closure and must be expanded. Otherwise, the argument is
not expanded. Note that the system already includes declarations for all
built-ins.
For example, the declaration for @code{call/1} and @code{setof/3} are:
@example
:- meta_predicate call(:), setof(?,:,?).
:- meta_predicate call(0), setof(?,0,?).
@end example
@end table