https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107512
Bug ID: 107512
Summary: Defaulted virtual destructor not considered in
constexpr context
Product: gcc
Version: 12.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: kacper.slominski72 at gmail dot com
Target Milestone: ---
The following code causes a compiler error on GCC 12.2 and godbolt's trunk
(compiled with "-std=c++20 -Wall -Wextra -Wpedantic"):
struct base {
constexpr virtual ~base() = default;
};
struct derived final : base {
constexpr virtual ~derived() = default;
};
constexpr derived der;
The reported error is:
<source>:9:19: error: 'virtual constexpr derived::~derived()' used before its
definition
9 | constexpr derived der;
| ^~~
Changing the destructor to the following makes the error go away:
constexpr virtual ~derived() { }
As does making the variable not constexpr. Clang seems to accept this without
any problems.
