Home > Electronics Tutorials > Online Computer Terms Dictionary > F

Online Computer Terms Dictionary - F

full laziness

<functional programming> A transformation, described by Wadsworth in 1971, which ensures that subexpressions in a function body which do not depend on the function's arguments are only evaluated once. E.g. each time the function

	f x = x + sqrt 4

is applied, (sqrt 4) will be evaluated. Since (sqrt 4) does not depend on x, we could transform this to:

	f x = x + sqrt4
	sqrt4 = sqrt 4

We have replaced the dynamically created (sqrt 4) with a single shared constant which, in a graph reduction system, will be evaluated the first time it is needed and then updated with its value.

See also fully lazy lambda lifting, let floating.



Nearby terms: full-custom full-duplex full-duplex Switched Ethernet full laziness full-motion video full outer join fully associative cache