On Wed, Dec 23, 2020 at 04:40:29PM -0500, Jason Merrill via Gcc-patches wrote:
> diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-overflow3.C
> b/gcc/testsuite/g++.dg/cpp0x/constexpr-overflow3.C
> new file mode 100644
> index 00000000000..22d4c59f4f8
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-overflow3.C
> @@ -0,0 +1,5 @@
> +// PR c++/98332
> +// { dg-do compile { target c++11 } }
> +
> +struct S { int a = 2147483647 + 1; }; // { dg-warning "overflow" }
Wouldn't it be more portable to use __INT_MAX__ + 1 here, so that it
will work also on 16-bit int targets?
> +struct { S b[2][1][1][1]; } c;
Jakub
