(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]

Last updated: 1994-11-03

Nearby terms:

unswizzleuntiluntypedunwind-protectunwind the stackUN*Xunzip

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