blob: c80a6d3e7daedb2e77a083609f9524c5ece4b3f3 [file] [log] [blame]
Brian Silverman4a2409e2018-08-04 23:24:02 -07001[/
2 Copyright 2007 John Maddock.
3 Distributed under the Boost Software License, Version 1.0.
4 (See accompanying file LICENSE_1_0.txt or copy at
5 http://www.boost.org/LICENSE_1_0.txt).
6]
7
8[section:has_nothrow_assign has_nothrow_assign]
9
10 template <class T>
11 struct has_nothrow_assign : public __tof {};
12
13__inherit If T is a (possibly cv-qualified) type with a non-throwing assignment-operator
14then inherits from __true_type, otherwise inherits from __false_type. Type `T`
15must be a complete type.
16
17__compat Either requires C++11 `noexcept` and `decltype` or else some (unspecified) help from the compiler.
18Currently (June 2015) compilers more recent than Visual C++ 8, GCC-4.3, Greenhills 6.0,
19Intel-11.0, and Codegear and all recent GCC versions have the necessary compiler __intrinsics to ensure that this
20trait "just works". You may test to see if the necessary support is available
21by checking to see if `defined(BOOST_HAS_NOTHROW_CONSTRUCTOR) || (!defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_CXX11_NOEXCEPT))` is true.
22
23__header ` #include <boost/type_traits/has_nothrow_assign.hpp>` or ` #include <boost/type_traits.hpp>`
24
25[endsect]
26