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sqlpp11/tests/is_regular.h
2015-12-28 10:39:53 +01:00

63 lines
2.3 KiB
C++

/*
* Copyright (c) 2013-2015, Roland Bock
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SQLPP_IS_REGULAR_H
#define SQLPP_IS_REGULAR_H
#include <type_traits>
namespace sqlpp
{
template <typename T>
struct is_regular
{
#if defined __clang__
#if __has_feature(cxx_thread_local)
#define SQLPP_TEST_NO_THROW_MOVE_CONSTRUCTIBLE // clang 3.2 has a problem with nothrow_constructibility (it also does
// not have thread_local support)
#endif
#else
#define SQLPP_TEST_NO_THROW_MOVE_CONSTRUCTIBLE
#endif
static constexpr bool value =
true
#if !defined _MSC_VER
#if defined SQLPP_TEST_NO_THROW_MOVE_CONSTRUCTIBLE
and std::is_nothrow_move_constructible<T>::value
#endif
and std::is_move_assignable<T>::value // containers and strings are not noexcept_assignable
and std::is_copy_constructible<T>::value and std::is_copy_assignable<T>::value
// default constructor makes no sense
// (not) equals would be possible
// not sure about less
#endif
;
};
}
#endif