[cfe-dev] [PATCH] -Wconversion-null

[James K. Lowden]

On Tue, 13 Mar 2012 23:04:35 +0100
Lubos Lunak <l.lunak at suse.cz> wrote:

>  the attached patch adds option -Wconversion-null . It is pretty much
> the same like http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35669 .

Am I missing the point entirely?  If I do this:

#undef NULL
#define NULL 0

The code you presented is valid C++ and the proposed warnings are all
misplaced. If NULL is defined as 

	(void*)0;

or somesuch, warnings should occur anyway on architectures that have
bigger pointers than ints.  

--jkl