Revision as of 23:04, 2 May 2010 (view source) rosettacode>Dgamey m (→‎Signals and Exceptions) ← Older edit		Revision as of 23:34, 2 May 2010 (view source) rosettacode>Dgamey (→‎error trapping) Newer edit →
Line 278: Terminates the current program and writes the result of expression to a file (&errout by default). ====error trapping==== The keyword '&error' is normally zero, but if set to a positive value, this sets the number of fatal errors that are tolerated ~~and~~(i.e. converted to expression failure;). ~~the~~ The value of &error is decremented ifeach time this happens. Therefore the now-common TRY-CATCH behaviour can be written as: Various idiomatic simplifications can be applied depending on your needs. ====error throwing==== Errors can be thrown using the function runerr(number, variable)

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