How to provide this arg or functor for algorithm?
anonymous via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Mon Aug 17 02:51:45 PDT 2015
On Sunday, 16 August 2015 at 23:05:42 UTC, Ali Çehreli wrote:
> // Now the type of d is a template parameter
> @nogc auto func(Func)(uint[] arr, Func d)
> {
> return arr.map!(d);
> }
Huh. I think func being a template is the key here. When the
original code is put in a template, it works too (with 2.068):
----
void func()() @nogc
{
import std.algorithm;
uint[3] arr = [1,2,3];
uint context = 2;
auto r = arr[].map!(delegate(value) { return value * context;
});
}
void main()
{
func();
}
----
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