structure members of packed structures

[Nathan Sidwell]

In C++, what about non-pods? Here is the problematic case,

	struct A { int m; A (); };
	struct __attribute__((packed)) B { char c; A a; };

Inside A::A, the this pointer will point to an unaligned object. I think
we should not pack B::a in this case, but issue a warning. We should pack
it if A itself is a packed type.
	struct __attribute__((packed)) A { int m; A ();};
	struct __attribute__((packed)) B { char c; A a;}; // ok

nathan

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Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
          The voices in my head said this was stupid too
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