https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70472
Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> changed:
What |Removed |Added
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CC| |arthur.j.odwyer at gmail dot
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--- Comment #14 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
> The problem is that std::vector does have a copy constructor, so the trait
> value is true, but instantiating that constructor produces an error when the
> value_type is not copyable.
Worse, the value_type can be incomplete, as in
struct Node {
std::vector<Node> children_;
};
Askar: see
https://quuxplusone.github.io/blog/2020/02/05/vector-is-copyable-except-when-its-not/
I suggest closing this bug report as Not A Bug. It certainly shouldn't be
tagged `wrong-code`.
