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Re: [C++ patch] accept __null as sentinel

Michael Matz wrote:

Maybe. But note that the case of a literal 0 will still be warned (as also for 0L), no matter what. It's only __null, a GCC specific thing, which I don't want to warn about, in a warning only implemented by GCC. We _know_ using __null will work.

But the user (probably) didn't write "__null" -- they wrote "NULL". So, what we really know is that using GCC's <stddef.h> will work. But if you're trying to write code portable to non-GCC compilers, then the warning still has value for you.

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Mark Mitchell
CodeSourcery, LLC
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