...if you meant to take the function/delegate and not invoke try `&Counter` instead, otherwise...

...in:

```
10
11
12
'next' is int delegate() pure nothrow @nogc @safe
```

Now, I uncomment...

...grammar for signature.
  Don't require `ref` delegate parameter.
  Explain non-ref ForeachType can match...

...examples runnable.
  Use list for kinds of delegate.
  Remove C pointer to function syntax as...

...const
      => this.format!"%s";

    auto toString(void delegate(in char[]) sink) const
      => sink.formattedWrite("%s...

...like this. He should be able to delegate that task to someone (like yourself) who...

...escape via non-scope parameter of pure
    delegate

https://github.com/dlang/dmd/pull/15756

--

...escape via non-scope parameter of pure
    delegate

https://github.com/dlang/dmd/pull/15756

--

...escape via non-scope parameter of pure
    delegate

https://github.com/dlang/dmd/pull/15756

--

...escape via non-scope parameter of pure
    delegate

https://github.com/dlang/dmd/pull/15756

--