On 10/19/2015 02:26 PM, Adam D. Ruppe wrote:
On Monday, 19 October 2015 at 18:16:15 UTC, Andrei Alexandrescu wrote:
Tangentially related: since when we allow field initialization with
new? I was surprised to see that this works:
Since CTFE started supporting it... this might actually be an
unintentional feature.
Since the initializer is in a static context, the right hand side gets
CTFE'd, which means that actually points to an array in the data
segment... the *same* array in the data segment for all initializations
(the pointer is just blitted over with the rest of init), which might be
a bit surprising.
I've seen a lot of people do this with classes not realizing it makes a
static instance!
This works too:
struct A {
int[] x = new int[10];
}
void main() {
import std.stdio;
A a;
a.x[1] = 42;
writeln(a.x);
}
Looks like a bona fide runtime array to me.
Andrei
