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https://github.com/boostorg/type_traits.git
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Fix has_nothrow_destructor so it actually works.
Add tests for it.
This commit is contained in:
jzmaddock
@@ -11,10 +11,36 @@
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#include <boost/type_traits/has_trivial_destructor.hpp>
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#if !defined(BOOST_NO_CXX11_NOEXCEPT)
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#include <boost/type_traits/detail/decl.hpp>
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#include <boost/type_traits/is_destructible.hpp>
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namespace boost{
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namespace detail{
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template <class T, bool b>
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struct has_nothrow_destructor_imp : public boost::integral_constant<bool, false>{};
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template <class T>
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struct has_nothrow_destructor_imp<T, true> : public boost::integral_constant<bool, noexcept(tt_declval<T*&>()->~T())>{};
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}
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template <class T> struct has_nothrow_destructor : public detail::has_nothrow_destructor_imp<T, boost::is_destructible<T>::value>{};
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template <class T, std::size_t N> struct has_nothrow_destructor<T[N]> : public has_nothrow_destructor<T>{};
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template <class T> struct has_nothrow_destructor<T&> : public integral_constant<bool, false>{};
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template <class T> struct has_nothrow_destructor<T&&> : public integral_constant<bool, false>{};
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}
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#else
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namespace boost {
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template <class T> struct has_nothrow_destructor : public ::boost::has_trivial_destructor<T> {};
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} // namespace boost
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#endif
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#endif // BOOST_TT_HAS_NOTHROW_DESTRUCTOR_HPP_INCLUDED
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219
test/has_nothrow_destructor_test.cpp
Normal file
219
test/has_nothrow_destructor_test.cpp
Normal file
@@ -0,0 +1,219 @@
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// (C) Copyright John Maddock 2000.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include "test.hpp"
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#include "check_integral_constant.hpp"
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#ifdef TEST_STD
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# include <type_traits>
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#else
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# include <boost/type_traits/has_nothrow_destructor.hpp>
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#endif
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#ifdef BOOST_MSVC
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#pragma warning(disable:4290) // exception spec ignored
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#endif
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struct nothrow_destruct
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{
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nothrow_destruct(int);
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~nothrow_destruct()throw();
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};
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#if !defined(BOOST_NO_CXX11_NOEXCEPT)
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struct noexcept_destruct
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{
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noexcept_destruct(int);
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~noexcept_destruct()noexcept;
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};
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#endif
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struct throwing_base
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{
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~throwing_base() throw(int);
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};
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struct throwing_derived : public throwing_base {};
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struct throwing_contained{ throwing_base data; };
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TT_TEST_BEGIN(has_nothrow_destructor)
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<bool>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<bool const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<bool volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<bool const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<signed char>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<signed char const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<signed char volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<signed char const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned char>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<char>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned char const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<char const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned char volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<char volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned char const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<char const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned short>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<short>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned short const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<short const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned short volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<short volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned short const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<short const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned int>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned int const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned int volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned int const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned long>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned long const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned long volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned long const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long const volatile>::value, true);
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#ifdef BOOST_HAS_LONG_LONG
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::ulong_long_type>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::long_long_type>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::ulong_long_type const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::long_long_type const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::ulong_long_type volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::long_long_type volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::ulong_long_type const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor< ::boost::long_long_type const volatile>::value, true);
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#endif
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#ifdef BOOST_HAS_MS_INT64
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int8>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int8>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int8 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int8 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int8 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int8 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int8 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int8 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int16>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int16>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int16 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int16 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int16 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int16 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int16 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int16 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int32>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int32>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int32 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int32 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int32 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int32 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int32 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int32 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int64>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int64>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int64 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int64 const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int64 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int64 volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<unsigned __int64 const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<__int64 const volatile>::value, true);
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#endif
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<float>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<float const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<float volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<float const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<double>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<double const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<double volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<double const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long double>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long double const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long double volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<long double const volatile>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<void*>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int*const>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<f1>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<f2>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<f3>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<mf1>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<mf2>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<mf3>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<mp>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<cmf>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<enum_UDT>::value, true);
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//
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// These are commented out for now because it's not clear what the semantics should be:
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// on the one hand references always have trivial destructors (in the sense that there is
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// nothing to destruct), on the other hand the thing referenced may not have a trivial
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// destructor, it really depends upon the users code as to what should happen here:
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//
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//BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int&>::value, false);
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//BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<const int&>::value, false);
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//
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// Destructors on UDT's are non-throwing by default, unless they are explicity marked otherwise:
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//
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int[2]>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int[3][2]>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<int[2][4][5][6][3]>::value, true);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<UDT>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<empty_UDT>::value, true, false);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<void>::value, false);
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// cases we would like to succeed but can't implement in the language:
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<empty_POD_UDT>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<POD_UDT>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<POD_union_UDT>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<empty_POD_union_UDT>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<trivial_except_destroy>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<trivial_except_copy>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<trivial_except_construct>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<trivial_except_assign>::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<wrap<trivial_except_destroy> >::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<wrap<trivial_except_copy> >::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<wrap<trivial_except_construct> >::value, true, false);
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BOOST_CHECK_SOFT_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<wrap<trivial_except_assign> >::value, true, false);
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#if !defined(BOOST_NO_CXX11_NOEXCEPT)
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<noexcept_destruct>::value, true);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<nothrow_destruct>::value, true);
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#endif
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<throwing_base>::value, false);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<throwing_derived>::value, false);
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BOOST_CHECK_INTEGRAL_CONSTANT(::tt::has_nothrow_destructor<throwing_contained>::value, false);
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TT_TEST_END
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