12345678910111213141516171819202122232425262728293031323334 |
- [/
- Copyright 2007 John Maddock.
- Copyright 2013 Antony Polukhin.
- Distributed under the Boost Software License, Version 1.0.
- (See accompanying file LICENSE_1_0.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt).
- ]
- [section:is_nothrow_move_assignable is_nothrow_move_assignable]
- template <class T>
- struct is_nothrow_move_assignable : public __tof {};
-
- __inherit 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`).
- __compat 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>`
- [endsect]
|