6)The move constructor is explicitly-defaulted. structX{X(X&&other);// move constructor// X(X other); // Error: incorrect parameter type};unionY{Y(Y&&other,intnum=1);// move constructor with multiple parameters// Y(Y&& other, int num); // Error: `num` has no default argument};...
为使强异常保证可行,用户定义的移动构造函数不应该抛出异常。例如,std::vector在需要重新放置元素时,基于std::move_if_noexcept在移动和复制之间选择。 如果同时提供了复制和移动构造函数而没有其他可行的构造函数,那么重载决议在实参是相同类型的右值(如std::move的结果的亡值,或如无名临时量的纯右值)时选择移动构造...
Relaxing range adaptors to allow for move-only types [FTM]* P2494R2 14 17 19.34* 15.0.0* std::basic_string_view range constructor should be explicit P2499R0 12.2 16 19.34* 15.0.0* std::generator: synchronous coroutine generator for ranges [FTM]* P2502R2P2787R0 14 19.43* Add a ...
When used as a function argument and when two overloads of the function are available, one taking rvalue reference parameter and the other taking lvalue reference to const parameter, an rvalue binds to the rvalue reference overload (thus, if both copy and move constructors are available, an...
__cpp_implicit_move 简化的隐式移动 202207L (C++23) P2266R3 __cpp_inheriting_constructors 继承构造函数 200802L (C++11) N2540 重述继承构造函数 201511L (C++17)(DR11) P0136R1 __cpp_init_captures lambda 的初始化捕获 201304L (C++14) N3648 允许lambda 初始化捕获中的包展开 201803L...
std::is_move_assignable::value 部分特化:标准库为以下类型提供了std::atomic模板的部分特化,这些特化具有主模板不具有的额外属性: 对所有指针类型的部分特化std::atomic。这些特化具有标准布局,平凡的默认构造函数,并支持适用于指针类型的原子算术操作,如fetch_add,fetch_sub。
When used as a function argument and when two overloads of the function are available, one taking rvalue reference parameter and the other taking lvalue reference to const parameter, an rvalue binds to the rvalue reference overload (thus, if both copy and move constructors are available, an...
Return a scoped object instead of a heap-allocated if it has a move constructor. SeeC++ Core Guidelines R.3. C26408 NO_MALLOC_FREE Avoid malloc() and free(), prefer the nothrow version of new with delete. SeeC++ Core Guidelines R.10. ...
Constructor & Destructor Documentation QWheelEvent ( const QPoint & pos, int delta, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::Orientation orient = Qt::Vertical ) QWheelEvent ( const QPoint & pos, const QPoint & globalPos, int del...
MoveConstructible (C++11) specifica che tipo ha costruttore mossa Original: specifies that type has move constructor The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (concetto) CopyConstructible specific...