This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Over-sensitive warning, or some quirk of C++ language rules?
- From: Ross Smith <r-smith at ihug dot co dot nz>
- To: GCC mailing list <gcc at gcc dot gnu dot org>
- Date: Sun, 10 Jan 2010 01:17:43 +1300
- Subject: Re: Over-sensitive warning, or some quirk of C++ language rules?
- References: <4B486914.8080905@gmail.com>
On 2010-01-10, at 00:31, Dave Korn wrote:
> Simple testcase, using HEAD@155680.
>
> ------------------------------------------------------------------------
> $ cat badwarn.cpp
>
> extern void bar (void);
> int foo (void) __attribute__ ((__noreturn__));
>
> int
> foo (void)
> {
> while (1)
> {
> bar ();
> }
> }
>
> $ g++-4 -c badwarn.cpp -Wall
> badwarn.cpp: In function 'int foo()':
> badwarn.cpp:12:1: warning: no return statement in function returning non-void
> ------------------------------------------------------------------------
gcc 4.0.1, 4.2.1, and 4.3.4 don't warn about this. Looks like a regression.
-- Ross Smith