Taking a function or delegate as argument.

simendsjo simendsjo at gmail.com
Tue Jan 10 05:48:37 PST 2012


On 10.01.2012 14:43, Mike Parker wrote:
> On 1/10/2012 10:05 PM, simendsjo wrote:
>> If I want to have a method taking a callback function, I have to specify
>> if it should take a function or delegate even if I don't really care.
>> What's the best way to accept either? I cannot see any wrapper for
>> something like this in std.typecons.
>
> The simple way:
>
> void callback(int i, void delegate(int) dg)
> {
> dg(i);
> }
>
> void callback(int i, void function(int) fn)
> {
> void wrap(int j)
> {
> function(j);
> }
> callback(i, &wrap);
> }

Yeah, but a bit tedious.. I found toDelegate: 
http://dlang.org/phobos/std_functional.html#toDelegate


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