[Issue 14033] runtime error about "auto ptr = cast(T*)buf" , T is class type

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14033

ag0aep6g at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |ag0aep6g at gmail.com
         Resolution|---                         |INVALID

--- Comment #2 from ag0aep6g at gmail.com ---
This is expected.

`clsPtr.a` does two dereferences:
1) `clsPtr` is dereferenced and yields a `clsTest` object. Class objects are
references (pointers) themselves. Since `buf` is all zeroes, you get a null
Object.
2) To access the `a` field, that null reference is then dereferenced. Boom,
segfault.

In code:
    clsTest tmp = *clsPtr;
    /* tmp is null */
    tmp.a = 123; /* dereferencing null */

Closing as invalid.

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