DMD 2.066 Alpha
bearophile via Digitalmars-d-announce
digitalmars-d-announce at puremagic.com
Fri Jun 13 14:04:26 PDT 2014
Steven Schveighoffer:
> To that end, I thought we were moving towards a more scalable
> solution: like !final or final!false or final(false), which
> could be nice for metaprogramming.
This is a small problem:
void foo(in int x) {
auto y = x;
y++; // error
}
The current solution is long, requires a cast and is not fully
DRY (the 'x' name is repeated twice):
import std.traits;
void foo(in int x) {
Unqual!(typeof(x)) y = x;
y++;
}
!const is useful here (I assume !const to be the same as
!immutable):
void foo(in int x) {
!const y = x;
y++;
}
Bye,
bearophile
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