(test) ? a:b
Marko Rauhamaa
marko at pacujo.net
Thu Oct 23 12:20:03 EDT 2014
Alain Ketterlin <alain at dpt-info.u-strasbg.fr>:
>> j = (lambda: 3, lambda: j + 1)[j < 10]()
>
> This is just a way to delay evaluation *of the potential results*,
> i.e., instill a bit of lazyness.
That's one way to characterize a function, or code in general.
That point of view is apparent in PostScript, where control structures
are expressed "lazily" with lambdas:
5 eq {
gsave
0.85 1 0.85 setrgbcolor
fill
grestore
} if
The { ... } block is a piece of code pushed onto the stack.
Marko
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