On Friday, 17 April 2020 at 17:48:06 UTC, Adam D. Ruppe wrote:
On Friday, 17 April 2020 at 17:31:32 UTC, Jean-Louis Leroy
wrote:
Well, can't do. I need this purely at compile time, and
cross-module.
And the CTFE engine gets weird with it too.... dmd will have to
fix this.
But default parameters might not be possible in general at CT
anyway... it is actually possible to define it to a variable.
Observe:
int a;
void f(int arg = a) { // default arg is to use the global...
import std.stdio; writeln(arg);
}
void main() {
f(); // 0 this time
a = 4; // and it can be changed at runtime!
f(); // will now say 4
}
Interesting example, but all hope is not lost. `a` could
(should?) be passed as an alias in __parameters.
