PR c++/35602 Bogus warning with -Wsign-conversion

[Ian Lance Taylor]

"Manuel López-Ibáñez" <lopezibanez@gmail.com> writes:

> 2008/8/20 Ian Lance Taylor <iant@google.com>:
>>
>> That seems odd.  Why is that?
>
> The compiler generates some extra code in this case.
> See the PR http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35602
>
> Why or when, I don't know but I guess this fix may apply to other
> cases of compiler-generated stuff.

I don't see anything in that PR specific to std::string.  It's just
specific to having a class.

I get the same warning with this test case.

  struct c
  {
    ~c();
    c();
  };

int

main(const int,
     const char * const * const)
{
    c x[0UL][0UL] =
    {
    };

    c y[0UL] =
    {
    };

    int z[0ul][0UL] =
    {
    };

    return 0;
}

Ian