C++ named requirements: MoveConstructible (od C++11)
Specifies that an instance of the type can be constructed from an rvalue argument.
Requirements
The type T satisfies MoveConstructible if
Given
rv, an rvalue expression of type Tu, an arbitrary identifier
The following expressions must be valid and have their specified effects
| pub | Expression | Post-conditions |
| pub | T u = rv; | The value of u is equivalent to the value of rv before the initialization. The new value of rv is unspecified |
| pub | T(rv) | The value of T(rv) is equivalent to the value of rv before the initialization. The new value of rv is unspecified |
Notes
A class does not have to implement a move constructor to satisfy this type requirement: a copy constructor that takes a const T& argument can bind rvalue expressions.
If a MoveConstructible class implements a move constructor, it may also implement move semantics to take advantage of the fact that the value of rv after construction is unspecified.