[Issue 8304] writeln of empty Nullables too

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=8304

Tobias Pankrath <tobias at pankrath.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |tobias at pankrath.net
         Resolution|---                         |FIXED

--- Comment #7 from Tobias Pankrath <tobias at pankrath.net> ---
import std.stdio;
import std.typecons;

void main() {
        Nullable!string s;
        writeln(s);
}

now prints "Nullable.null".

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