Look at this code: class Foo { public: string name; Foo(string n) : name{n} { cout << "CTOR (" << name << ")" << endl; } Foo(Foo&& moved) { cout <<...

I have heard Scott Meyers say "std::move() doesn't move anything" ... but I haven't understood what it means. So to specify my question consider the following: class Box { /* things... */ }; Box...

I have a function which modifies std::string& lvalue references in-place, returning a reference to the input parameter: std::string& transform(std::string& input) { // transform the i...

This answer explains how to move-capture a variable within a lambda in C++14. But once you've move-captured an un-copyable object (such as a std::unique_ptr) within a lambda, you cannot copy...

I always read that std::forward is only for use with template parameters. However, I was asking myself why. See the following example: void ImageView::setImage(const Image& image){ _ima...

Consider a type T supporting the default move semantics. Also consider the function below: T f() { T t; return t; } T o = f(); In the old C++03, some non-optimal compilers might call the copy...

I don't fully understand the implementation of std::move(). Namely, I am confused by this implementation in the MSVC standard library: template<class _Ty> inline typename tr1::_Remove_refere...

I don't understand very well the std::move function template <class T> typename remove_reference<T>::type&& move(T&& a) { return a; } why remove_reference ? co...