Nope, that would not be C++ if it wasn’t broken:
class C1
{
public:
std::string_view getMember() const & { return member; }
std::string member;
};
std::string_view m = C1().getMember(); // compiles!
You have to delete the method explicitly:
std::string_view getMember() const && = delete;
Now compilation fails:
call to deleted member function 'getMember'
std::string_view m = C1().getMember();
~~~~~^~~~~~~~~
> 13 мая 2020 г., в 11:31, Marco Bubke <marco.bu...@qt.io> написал(а):
>
>
> auto view3 = myObject.getCopy()[42].getView(); // not safe, copy is destroyed
>
> AFAIK you can say that a rvalue should not return a reference by using
> ref-qualified member functions.
>
> View getView() const & { return v;}
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