https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87605
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |accepts-invalid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-13
Ever confirmed|0 |1
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I agree the copy should not be possible because of the explicit constructor.
EDG also accepts it, but Clang doesn't:
copy.cc:12:25: error: no matching constructor for initialization of 'A'
const A& b = true ? a : A();
^
copy.cc:5:5: note: candidate constructor not viable: requires 0 arguments, but
1 was provided
A(){}
^
1 error generated.
