[Issue 23576] Better Error Message When Forgetting To Pass A Template Parameter

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23576

Salih Dincer <salihdb at hotmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |salihdb at hotmail.com

--- Comment #1 from Salih Dincer <salihdb at hotmail.com> ---
You are right, previous version error:

Issue23576.d(22): Error: template `source.test3` cannot deduce function from
argument types `!()(byte)`, candidates are:
Issue23576.d(8):        `source.test3(E)(int d)`

Same codes:

void test2(C)(C d)
{
  byte x = 42;
  assert(d == x);
  assert(is(typeof(x) : C));
}

template test3(E)
{
  void test3(E d)
  {
    byte x = 42;
    assert(d == x);
    assert(is(typeof(x) : E));
  }
}

void main()
{
    byte a = 42;
    test2(a);
    test3(a);
}

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