https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116162
Bug ID: 116162
Summary: GCC rejects explicitly default move ctor with const
X&& parameter
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jlame646 at gmail dot com
Target Milestone: ---
The following valid program is rejected by gcc, clang and msvc. Only EDG
accepts it correctly. https://godbolt.org/z/c9Wf8hh16
```
struct C
{
C(const C&&) = default; // EDG: ok, gcc: No, Clang: No
};
int main()
{
}
```
Gcc says:
```
<source>:3:4: error: defaulted declaration 'C::C(const C&&)' does not match the
expected signature
3 | C(const C&&) = default;
| ^
<source>:3:4: note: expected signature: 'constexpr C::C(C&&)'
```
