With DMD 2.053 the second assert of this program fires, is this a DMD bug or it's me that's missing something?


struct Foo {
    int[] data;

    this(int n) {
        data.length = n;
    }

    this(this) {
        data = data.dup;
    }
}
void main() {
    Foo f1, f2;
    f1 = Foo(1);
    f2 = f1;
    assert(f1.data.ptr != f2.data.ptr); // OK
    f1 = f2 = Foo(1);
    assert(f1.data.ptr != f2.data.ptr); // asserts
}

Bye and thank you,
bearophile

Looks like a bug.  Please file.

"bearophile" <bearophileHUGS@lycos.com> wrote in message news:iv0eki$1d8e$1@digitalmars.com...
> With DMD 2.053 the second assert of this program fires, is this a DMD bug or it's me that's missing something?
>
>
> struct Foo {
>    int[] data;
>
>    this(int n) {
>        data.length = n;
>    }
>
>    this(this) {
>        data = data.dup;
>    }
> }
> void main() {
>    Foo f1, f2;
>    f1 = Foo(1);
>    f2 = f1;
>    assert(f1.data.ptr != f2.data.ptr); // OK
>    f1 = f2 = Foo(1);
>    assert(f1.data.ptr != f2.data.ptr); // asserts
> }
>
> Bye and thank you,
> bearophile

Daniel Murphy:

> Looks like a bug.  Please file.

http://d.puremagic.com/issues/show_bug.cgi?id=6257

Bye,
bearophile