D equivalent of C++ bind ?

[Dsby via Digitalmars-d-learn]

On Tuesday, 10 May 2016 at 09:39:53 UTC, chmike wrote:
> Is there an equivalent in D of the C++11 std.bind template 
> class 
> [http://en.cppreference.com/w/cpp/utility/functional/bind] ?
>
> Here is a blog post showing different examples of its use
> https://oopscenities.net/2012/02/24/c11-stdfunction-and-stdbind/
>
>
> A possible use case is for a callback function/delegate with 
> the expected signature bool cb(int error). I would like to pass 
> a function bool myCb(int error, ref int myArg) instead with the 
> variable myArg being given as predefined argument.
>
> Here is an example.
> ----
> int count = 0;
>
> bool myCb(int error, ref int myArg)
> {
>     if (myArg >= 6)
>         return false;
>     writeln(++myArg);
>     return true;
> }
>
> void async_task(void function(int error) cb) { . . . while 
> cb(0) . . . }
>
> void main() {
>     . . .
>     async_task( ??? myCb ??? count ??? );
>     . . .
> }
> ----
>
> In C++ we would write
>
> async_task(std::bind(myCb, std::placeholders::_1, count));

I write one, bind functon to a delegate.

In here:
https://github.com/putao-dev/collie/blob/master/source/collie/utils/functional.d


this is the code:

auto  bind(T,Args...)(auto ref T fun,Args args) if 
(isCallable!(T))
{
     alias FUNTYPE = Parameters!(fun);
     static if(is(Args == void))
     {
         static if(isDelegate!T)
             return fun;
         else
             return toDelegate(fun);
     }
     else static if(FUNTYPE.length > args.length)
     {
         alias DTYPE = FUNTYPE[args.length..$];
         return
             delegate(DTYPE ars){
                 TypeTuple!(FUNTYPE) value;
                 value[0..args.length] = args[];
                 value[args.length..$] = ars[];
                 return fun(value);
             };
     }
     else
     {
         return delegate(){return fun(args);};
     }
}