Re: hidden passing of __FILE__ and __LINE__ into function

[Stanislav Blinov via Digitalmars-d-learn]

On Tuesday, 18 April 2017 at 13:28:06 UTC, Solomon E wrote:
I tried to produce an example of calling a function with
variadic template arguments using special tokens __FILE__ and 
__LINE__.

This compiles and runs, producing the output shown, using the 
default gdc
provided by Ubuntu 17.04. This appears to be a workaround for 
Issue 8687...

There's a much more concise workaround, both in code written and 
generated ;)

import std.stdio;

template func(string file = __FILE__, int line = __LINE__)
{
    auto func(T...)(auto ref T args)
    {
        writeln("called func with ", T.length, " args at ",
                file, ":", line);
    }
}

void main()
{
    func();
    func(1, 2, 3);
}