template <class T> struct is_nothrow_move_constructible : public
Inherits: If T is a (possibly cv-qualified)
type with a non-throwing move-constructor or a type without move-constructor
but with non-throwing copy-constructor, then inherits from true_type,
otherwise inherits from false_type.
T must be a complete
In other words, inherits from true_type
only if expression
T(std::move(varaible1)) won't throw (
is a variable of type
Compiler Compatibility: If the compiler does not support partial-specialization of class templates, then this template can not be used with function types.
Without some (C++11 noexcept shall work correctly) help from the compiler,
will never report that a class or struct has a non-throwing copy-constructor;
this is always safe, if possibly sub-optimal. Currently (February 2013) Clang
and GCC 4.7 have the necessary compiler support to ensure that this trait