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### is_nothrow_move_assignable

    template <class T>
    struct is_nothrow_move_assignable : public true_type-or-false_type {};

Inherits: If `T` is a (possibly cv-qualified) type with a non-throwing move assignment-operator or a type without move assignment-operator but with non-throwing assignment-operator, then inherits from true_type, otherwise inherits from false_type. Type `T` must be a complete type.

In other words, inherits from true_type only if expression `variable1 = std::move(variable2)` won't throw (`variable1` and `variable2` are variables of type `T`).

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, `is_nothrow_move_assignable` will never report that a class or struct has a non-throwing assignment-operator; this is always safe, if possibly sub-optimal. Currently (June 2015) MSVC-12.0, Clang and GCC 4.7 have the necessary compiler support to ensure that this trait "just works".

Header: `#include <boost/type_traits/is_nothrow_move_assignable.hpp>` or `#include <boost/type_traits.hpp>`