Jeff Shannon <[EMAIL PROTECTED]> writes:
> Steven Bethard wrote:
> Hm, possibly. I must confess that my direct knowledge is limited to a
> fairly narrow set of languages, and that C and C++ are the only
> statically-compiled languages I've used. Still, I'm not sure that
> it's just a matter of functions as first-class objects. Would OCaml
> (or some other static language) have something that's equivalent to
> this?
>
> def f(x):
> if x < 0:
> def g(y):
> return y * -1
> else:
> def g(y):
> return y
> return g
>
> foo = f(1)
This is really no different than:
def f(x):
if x < 0:
g = -y
else:
g = y
return g
The only difference is that you're binding the variable g to a y type
instead of a function type. That's what "first class functions"
means. You can treat functions like any other object, assign them to
variables, pass them as parameters, and so on.
<mike
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Mike Meyer <[EMAIL PROTECTED]> http://www.mired.org/home/mwm/
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