[Issue 21983] dup leaves a partially constructed array if postblit/copy ctor throws

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=21983

--- Comment #1 from moonlightsenti...@disroot.org ---
Test case (run with current master):

import core.stdc.stdio : puts, printf;

struct S {
    private int id;

    this(this)
    {
        if (id == 2)
            throw new Exception("");
    }

    ~this()
    {
        printf("Destroying %d at %p\n", id, &this);
    }
}

void main()
{
    try
    {
        S[3] arr = [ S(1), S(2), S(3) ];
        arr.dup();
    }
    catch (Exception e) {}

    puts("Done");
}

====

Destroying 3 at 0x7fffcd3f3888
Destroying 2 at 0x7fffcd3f3884
Destroying 1 at 0x7fffcd3f3880
Done
Destroying -968732576 at 0x7fea0ce90008
Destroying 2 at 0x7fea0ce90004
Destroying 1 at 0x7fea0ce90000

--