Delegate

[Denis Koroskin]

On Tue, 02 Dec 2008 22:45:03 +0300, Derek Parnell <derek at psych.ward> wrote:

> On Tue, 02 Dec 2008 19:30:47 +0100, Fabian Claßen wrote:
>
>> Hi
>> I have a problem:
>>
>> What's wrong about this code?
>> Code:
>>
>> import std.stdio;
>>
>> int main() {
>> 	writefln("%f", add(100, 786, 56.0));
>> 	return 0;
>> }
>>
>> double add(double delegate()[] dgs...) {
>> 	double result = 0;
>> 	foreach(double delegate() dg; dgs) {
>> 		result += dg;
>> 	}
>> 	return result;
>> }
>>
>> Or a better question is: How can I get the value out of the delegate?
>
> I don't understand your code, sorry. It seems to me that the argument you
> supplied to add() is a list of doubles and not a list of delegates.
>
>

I was a bit surprized at first, too, but any value is indeed a lazy  
delegate that returns itself.