1
2// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
3// Use, modification and distribution are subject to the Boost Software License,
4// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt).
6//
7// See http://www.boost.org/libs/type_traits for most recent version including documentation.
8
9#ifndef BOOST_TT_HAS_NOTHROW_DESTRUCTOR_HPP_INCLUDED
10#define BOOST_TT_HAS_NOTHROW_DESTRUCTOR_HPP_INCLUDED
11
12#include <boost/type_traits/has_trivial_destructor.hpp>
13
14#if !defined(BOOST_NO_CXX11_NOEXCEPT) && !defined(__SUNPRO_CC) && !defined(BOOST_MSVC)
15
16#include <boost/type_traits/declval.hpp>
17#include <boost/type_traits/is_destructible.hpp>
18
19namespace boost{
20
21 namespace detail{
22
23 template <class T, bool b>
24 struct has_nothrow_destructor_imp : public boost::integral_constant<bool, false>{};
25 template <class T>
26 struct has_nothrow_destructor_imp<T, true> : public boost::integral_constant<bool, noexcept(boost::declval<T*&>()->~T())>{};
27
28 }
29
30 template <class T> struct has_nothrow_destructor : public detail::has_nothrow_destructor_imp<T, boost::is_destructible<T>::value>{};
31 template <class T, std::size_t N> struct has_nothrow_destructor<T[N]> : public has_nothrow_destructor<T>{};
32 template <class T> struct has_nothrow_destructor<T&> : public integral_constant<bool, false>{};
33#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
34 template <class T> struct has_nothrow_destructor<T&&> : public integral_constant<bool, false>{};
35#endif
36}
37#else
38
39namespace boost {
40
41template <class T> struct has_nothrow_destructor : public ::boost::has_trivial_destructor<T> {};
42
43} // namespace boost
44
45#endif
46
47#endif // BOOST_TT_HAS_NOTHROW_DESTRUCTOR_HPP_INCLUDED
48