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Re: [C++ patch] accept __null as sentinel
On Fri, 29 Apr 2005, Richard Henderson wrote:
> FWIW, Michael, I agree that allowing NULL (and thus __null) to be used
> as a valid sentinal is the only way this will practically be useful to
> real code.
I think OpenBSD is real code. Diagnosing the use of NULL as a sentinel is
also what's desired for OpenBSD; they may be on the stricter side but this
is through concerns for genuine rather than merely theoretical portability
and security. See Marc Espie's comments in the thread
<http://gcc.gnu.org/ml/gcc-patches/2004-09/subjects.html#01417> for (a)
the desire for this warning for uncast NULL and (b) examples of real
deployed systems where NULL for C++ is plain 0 unconditionally showing
there to be genuine portability issues involved.
--
Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/
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