On Tue, Feb 14, 2023 at 12:22:33PM +0100, Jakub Jelinek via Gcc-patches wrote:
> 2023-02-14 Jakub Jelinek <ja...@redhat.com>
>
> * g++.dg/DRs/dr2691.C: New test.
Actually, this one isn't a DR, so maybe it should go into:
* gcc/testsuite/c-c++-common/cpp/delimited-escape-seq-8.c: New test.
instead.
> --- gcc/testsuite/g++.dg/DRs/dr2691.C.jj 2023-02-14 11:48:35.841335492
> +0100
> +++ gcc/testsuite/g++.dg/DRs/dr2691.C 2023-02-14 11:57:21.538669133 +0100
> @@ -0,0 +1,15 @@
> +// DR 2691 - hexadecimal-escape-sequence is too greedy
> +// { dg-do run { target c++11 } }
> +// { dg-require-effective-target wchar }
> +// { dg-options "-pedantic" }
> +
> +extern "C" void abort ();
> +
> +const char32_t *a = U"\x{20}ab"; // { dg-warning "delimited escape
> sequences are only valid in" "" { target c++20_down } }
> +
> +int
> +main ()
> +{
> + if (a[0] != U'\x20' || a[1] != U'a' || a[2] != U'b' || a[3] != U'\0')
> + abort ();
> +}
Jakub
