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YAP 7.1.0
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block(C) More...
block(C)
The argument to block/1
is a condition on a goal or a conjunction of conditions, with each element separated by commas Each condition is of the form predname( _C1_,..., _CN_)
, where N is the arity of the goal, and each CI is of the form -
, if the argument must suspend until the first such variable is bound, or ?
, otherwise