Hi!
On Mon, Feb 06, 2023 at 02:26:01PM +0000, Jonathan Wakely via Gcc-patches wrote:
> With the recent change to deprecate std::aligned_storage and
> std::aligned_union we need to adjust some tests that now fail with
> -std=c++23.
The g++.dg/warn/Wstrict-aliasing-bogus-union-2.C test is also affected:
PASS: g++.dg/warn/Wstrict-aliasing-bogus-union-2.C -std=gnu++2b (test for
bogus messages, line 12)
FAIL: g++.dg/warn/Wstrict-aliasing-bogus-union-2.C -std=gnu++2b (test for
excess errors)
Excess errors:
.../gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-union-2.C:8:8: warning:
'template<long unsigned int _Len, long unsigned int _Align> struct
std::aligned_storage' is deprecated [-Wdeprecated-declarations]
The following patch adds dg-warning for it.
Tested on x86_64-linux -m32/-m64 with GXX_TESTSUITE_STDS=98,11,14,17,20,2b ,
committed to trunk as obvious.
2023-02-07 Jakub Jelinek <ja...@redhat.com>
* g++.dg/warn/Wstrict-aliasing-bogus-union-2.C: Expect
-Wdeprecated warning for C++23.
--- gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-union-2.C.jj
2020-01-12 11:54:37.286400238 +0100
+++ gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-union-2.C 2023-02-07
10:21:47.616642483 +0100
@@ -5,7 +5,7 @@
struct foo
{
- std::aligned_storage<sizeof(long), alignof(long)>::type raw;
+ std::aligned_storage<sizeof(long), alignof(long)>::type raw; /* { dg-warning
"deprecated" "" { target c++23 } } */
long& cooked()
{
Jakub
