Computing Dictionary

unwind-protect definition

(MIT) A Lisp operator which evaluates an expression and then, even if that expression causes a non-local exit, evaluates zero or more other expressions. This can be used to ensure that essential "clean-up" operations are performed even in the presence of errors.
[Jargon File]
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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