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call-by-need
<reduction> A reduction strategy which delays evaluation of
function arguments until they are needed because they are
arguments to a primitive function or a conditional.
Call-by-need is one part of lazy evaluation.
The term first appears in Chris Wadsworth's thesis "Semantics
and Pragmatics of the Lambda calculus" (Oxford, 1971, p. 183).
It was used later, by J. Vuillemin in his thesis (Stanford,
1973).
(1995-05-27)
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Nearby terms:
California State University San Marcos « callback « call-by-name « call-by-need » call-by-reference » call-by-value » call-by-value-result
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
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