http://dpaste.dzfl.pl/cdabf9fa

But adding one more parameter gives an error!

http://dpaste.dzfl.pl/a5cfac37

Template has no effect simply because I added an parameter with a default?!?!?!?

On Tuesday, 30 July 2013 at 22:22:38 UTC, JS wrote:
> But adding one more parameter gives an error!
>
> http://dpaste.dzfl.pl/a5cfac37

Copying the code for readability and for future generations:

template SomeName(T...)
{
	void SomeName(string file = __FILE__, string line = __LINE__, string f = __FUNCTION__)() { pragma(msg, f~";"); }
}

void main()
{
	SomeName!("x");
}

And the error:

/d608/f685.d(8): Error: template SomeName(string file = __FILE__, string line = __LINE__, string f = __FUNCTION__)() has no effect

> Template has no effect simply because I added an parameter with a default?!?!?!?

You have a bug in there!!!!!!! __LINE__ is not a string!!?!!?! Make it `size_t line = __LINE__` and you're good.......
The error message really doesn't help much, though.

On Tuesday, 30 July 2013 at 22:22:38 UTC, JS wrote:
> http://dpaste.dzfl.pl/cdabf9fa
>
> But adding one more parameter gives an error!
>
> http://dpaste.dzfl.pl/a5cfac37
>
> Template has no effect simply because I added an parameter with a default?!?!?!?

Definitely some compiler logic problems there with the error message at least.


What I'd like to see:

pragma(msg) should be immune from "has no effect" errors as it does have an observable effect at compile-time.