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117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
// Copyright (C) 2014 Andrzej Krzemienski.
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//
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/lib/optional for documentation.
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//
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// You are welcome to contact the author at:
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// akrzemi1@gmail.com
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#include "boost/static_assert.hpp"
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#include "boost/optional/optional.hpp"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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using boost::optional;
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#ifndef BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES
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#ifndef BOOST_NO_CXX11_NOEXCEPT
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// these 4 classes have different noexcept signatures in move operations
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struct NothrowBoth {
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NothrowBoth(NothrowBoth&&) BOOST_NOEXCEPT_IF(true) {};
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void operator=(NothrowBoth&&) BOOST_NOEXCEPT_IF(true) {};
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};
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struct NothrowCtor {
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NothrowCtor(NothrowCtor&&) BOOST_NOEXCEPT_IF(true) {};
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void operator=(NothrowCtor&&) BOOST_NOEXCEPT_IF(false) {};
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};
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struct NothrowAssign {
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NothrowAssign(NothrowAssign&&) BOOST_NOEXCEPT_IF(false) {};
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void operator=(NothrowAssign&&) BOOST_NOEXCEPT_IF(true) {};
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};
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struct NothrowNone {
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NothrowNone(NothrowNone&&) BOOST_NOEXCEPT_IF(false) {};
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void operator=(NothrowNone&&) BOOST_NOEXCEPT_IF(false) {};
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};
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#if 0 // these also test type_traits, which are wrong
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void test_noexcept_as_defined() // this is a compile-time test
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{
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<NothrowBoth>::value);
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_assignable<NothrowBoth>::value);
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<NothrowCtor>::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<NothrowCtor>::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<NothrowAssign>::value);
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_assignable<NothrowAssign>::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<NothrowNone>::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<NothrowNone>::value);
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}
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void test_noexcept_on_optional_with_type_traits() // this is a compile-time test
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{
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<optional<NothrowBoth> >::value);
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_assignable<optional<NothrowBoth> >::value);
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BOOST_STATIC_ASSERT(BOOST_NOEXCEPT_EXPR(optional<NothrowBoth>()));
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BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<optional<NothrowCtor> >::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<optional<NothrowCtor> >::value);
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BOOST_STATIC_ASSERT(BOOST_NOEXCEPT_EXPR(optional<NothrowCtor>()));
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<optional<NothrowAssign> >::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<optional<NothrowAssign> >::value);
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BOOST_STATIC_ASSERT(BOOST_NOEXCEPT_EXPR(optional<NothrowAssign>()));
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<optional<NothrowNone> >::value);
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BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<optional<NothrowNone> >::value);
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BOOST_STATIC_ASSERT(BOOST_NOEXCEPT_EXPR(optional<NothrowNone>()));
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}
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#endif
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void test_noexcept_optional_with_operator() // compile-time test
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{
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typedef optional<NothrowBoth> ONx2;
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typedef optional<NothrowCtor> ONxC;
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typedef optional<NothrowAssign> ONxA;
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typedef optional<NothrowNone> ONx0;
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ONx2 onx2;
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ONxC onxC;
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ONxA onxA;
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ONx0 onx0;
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONx2() ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONx2(boost::move(onx2)) ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( onx2 = ONx2() ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONxC() ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONxC(boost::move(onxC)) ));
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BOOST_STATIC_ASSERT(!BOOST_NOEXCEPT_EXPR( onxC = ONxC() ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONxA() ));
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BOOST_STATIC_ASSERT(!BOOST_NOEXCEPT_EXPR( ONxA(boost::move(onxA)) ));
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BOOST_STATIC_ASSERT(!BOOST_NOEXCEPT_EXPR( onxA = ONxA() ));
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BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ONx0() ));
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BOOST_STATIC_ASSERT(!BOOST_NOEXCEPT_EXPR( ONx0(boost::move(onx0)) ));
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BOOST_STATIC_ASSERT(!BOOST_NOEXCEPT_EXPR( onx0 = ONx0() ));
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}
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#endif // !defned BOOST_NO_CXX11_NOEXCEPT
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#endif // !defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES
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int main()
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{
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return 0;
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}
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