[Bug d/96153] New: d: struct literals have non-deterministic hash values

[ibuclaw at gdcproject dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96153

            Bug ID: 96153
           Summary: d: struct literals have non-deterministic hash values
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: ibuclaw at gdcproject dot org
  Target Milestone: ---

struct Checked(T, Hook)
{
    private T payload;
    Hook hook;

    size_t toHash() const nothrow @safe
    {
        return hashOf(payload) ^ hashOf(hook);
    }
}

Checked!(T, Hook) checked(Hook, T)(const T value)
{
    return Checked!(T, Hook)(value);
}

@system unittest
{
    static struct Hook3
    {
        ulong var1 = ulong.max;
        uint var2 = uint.max;
    }

    assert(checked!Hook3(12).toHash() != checked!Hook3(13).toHash());
    assert(checked!Hook3(13).toHash() == checked!Hook3(13).toHash());
}