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library(exceptions)

F.2.17 library(exceptions)

catch/4As catch/3, only catching exceptions for which exception(ErrorType,Ball) is true.
error_term/2Describe the formal part of error(Formal,ImplDefined) exceptions.
exception/2If Ball is unbound, adds a delayed goal that tests the error belongs to Type when Ball is instantiated (by catch/3).
exception_term/2Describe exceptions that are not error(Formal, _) terms.
exception_type/2Declare all exceptions subsumed by Term to be an exception of Type.

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