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Re: Add uninitialized attribute?
H.J. Lu wrote:
> void *undef __attribute__ ((uninitialized)); // Or something similar
> foo (undef);
> Compiler can pass some junk to foo.
I don't think that's a very good idea. If we need this, which I doubt,
it should be something like a new __undefined__ keyword, that expands to
an undefined value. In C++, a syntax like __undefined__<X>() would be
plausible; I'm not sure there's a good C syntax. Perhaps you could do
what tgmath does.
I guess if you had this, you could use it in place of the attribute;
int i = __undefined__<int>();
would serve to indicate that you were knowingly not initializing i.
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