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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/99631] New: decltype of non-type template-parameter shouldn't be const
Date: Wed, 17 Mar 2021 17:38:11 +0000	[thread overview]
Message-ID: <bug-99631-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99631

            Bug ID: 99631
           Summary: decltype of non-type template-parameter shouldn't be
                    const
           Product: gcc
           Version: 11.0
               URL: https://godbolt.org/z/4YY5r3
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: johelegp at gmail dot com
                CC: johelegp at gmail dot com
  Target Milestone: ---

See https://godbolt.org/z/4YY5r3.
```C++
#include<type_traits>
template<auto V>constexpr bool is_const=std::is_const_v<decltype(V)>;
struct A{};
static_assert(!is_const<A{}>);
```
```
<source>:4:15: error: static assertion failed
    4 | static_assert(!is_const<A{}>);
      |               ^~~~~~~~~~~~~~
Compiler returned: 1
```
See https://bugs.llvm.org/show_bug.cgi?id=49609#c1 for an explanation.

             reply	other threads:[~2021-03-17 17:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17 17:38 johelegp at gmail dot com [this message]
2021-03-18 13:20 ` [Bug c++/99631] " redi at gcc dot gnu.org
2021-03-18 13:48 ` jakub at gcc dot gnu.org
2021-03-18 23:44 ` johelegp at gmail dot com
2021-11-09 17:23 ` n60wb42d2 at relay dot firefox.com
2022-09-26  1:46 ` johelegp at gmail dot com
2022-09-26  1:47 ` johelegp at gmail dot com
2022-12-26 17:10 ` pinskia at gcc dot gnu.org
2023-09-15 17:38 ` ppalka at gcc dot gnu.org
2023-09-15 17:39 ` ppalka at gcc dot gnu.org
2023-09-15 17:41 ` ppalka at gcc dot gnu.org
2023-09-19 12:21 ` cvs-commit at gcc dot gnu.org
2023-09-24 18:42 ` cvs-commit at gcc dot gnu.org
2023-09-24 18:44 ` ppalka at gcc dot gnu.org
2023-09-24 19:13 ` danakj at orodu dot net

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