Unwind-protect
(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]
(1994-11-03)
Read Also:
- Unwind the stack
During the execution of a procedural language, one is said to “unwind the stack” from a called procedure up to a caller when one discards the stack frame and any number of frames above it, popping back up to the level of the given caller. In C this is done with “longjmp”/”setjmp”, in Lisp with […]
- Unwinking
verb (used without object) 1. to close and open one or both eyes quickly. 2. to close and open one eye quickly as a hint or signal or with some sly meaning (often followed by at): She winked at him across the room. 3. (of the eyes) to close and open thus; blink. 4. to […]
- Unwinnable
adjective 1. that can be won: a winnable war. adjective 1. not able to be won or achieved 2. (of a seat in an election) not able to be taken from the incumbent or the incumbent’s party
- Unwired
adjective 1. not wired, especially not connected by power lines, cables, or wires to receive electricity or cable television. adjective not wired; worked without electricity or wiring
- Unwisdom
noun 1. lack of wisdom; folly; rashness; recklessness: an act of unwisdom.