C++ copy/move ctor/assign are safe for regular value types. Regular value types behave like integers or other “regular” values. They are also safe for pointer semantic types, so long as the operation does not change what the pointer “should” point to. Pointing to something “within yourself”, or another member, is an example of where it … Read more
C++11 rules for automatic generation of special members aren’t as simple as you posted them. The most important distinction is that in some cases, the member is implicitly declared, but defined as deleted. That’s what happens in your case. C++11, [class.copy]ยง11: A defaulted copy/move constructor for a class X is defined as deleted (8.4.3) if … Read more
Foo f1; Foo f2(f1); Yes this will do what you expect it to: The f2 copy constructor Foo::Foo(Foo const&) is called. This copy constructs its base class and then each member (recursively) If you define a class like this: class X: public Y { private: int m_a; char* m_b; Z m_c; }; The following methods … Read more