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Re: [libcpp] append "evaluates to 0" for Wundef diagnostic
- From: David Malcolm <dmalcolm at redhat dot com>
- To: Prathamesh Kulkarni <prathamesh dot kulkarni at linaro dot org>, gcc Patches <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 19 Aug 2016 08:59:51 -0400
- Subject: Re: [libcpp] append "evaluates to 0" for Wundef diagnostic
- Authentication-results: sourceware.org; auth=none
- References: <CAAgBjMkLi3+G+B7oass51rfUmPm+BLdbXGRV=aKGrYTvDr+zXA@mail.gmail.com>
On Fri, 2016-08-19 at 14:15 +0530, Prathamesh Kulkarni wrote:
> Hi David,
> This trivial patch appends "evaluates to 0", in Wundef diagnostic,
> similar to clang, which prints the following diagnostic for undefined
> macro:
> undef.c:1:5: warning: 'FOO' is not defined, evaluates to 0 [-Wundef]
> #if FOO
> ^
> Bootstrapped+tested on x86_64-unknown-linux-gnu.
> OK to commit ?
Nice tweak; LGTM.
Thanks
Dave