June 20, 2021
https://issues.dlang.org/show_bug.cgi?id=22051

Basile-z <b2.temp@gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Basile-z <b2.temp@gmx.com> ---
The specifier is only checked if you pass it has a template value parameter, like this:

---
import std.stdio;

void main (){
   bool myvar = true;
   writefln!"Bool: % "(myvar);
}
---

otherwise a run-time error is the only way to get it checked.
The string literal gives the impression that it is verifiable it could very
well be something build from random sources.

--
June 20, 2021
https://issues.dlang.org/show_bug.cgi?id=22051

Basile-z <b2.temp@gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |b2.temp@gmx.com

--- Comment #2 from Basile-z <b2.temp@gmx.com> ---
Maybe you expected https://dlang.org/spec/pragma.html#printf to work ?
If so then that is also an invalid report because this works only on C variadic
functions. writefln is a D variadic function.

--