Re: Segfault with std.variant

[Ali Çehreli via Digitalmars-d-learn]

On 3/24/23 23:07, Mitchell wrote:

>    variant["four"] = Variant(4); // Segfault
Today I learned that VariantN forwards to associative array operations. 
Cool I guess. :)

> with a segfault. I'm using LDC2:

Same with dmd. It fails in the destructor of VariantN.

    static if (!AllowedTypes.length || 
anySatisfy!(hasElaborateDestructor, AllowedTypes))
    {
        ~this()
        {
            // Infer the safety of the provided types
            static if (AllowedTypes.length)
            {
                if (0)
                {
                    AllowedTypes var;
                }
            }
            (() @trusted => fptr(OpID.destruct, &store, null))();
        }
    }

That @trusted lambda call segfaults.

This looks like a bug to me. Reported:

  https://issues.dlang.org/show_bug.cgi?id=23809

Ali