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/*
* Copyright 2008-2018 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* (C) Copyright John Maddock 2000.
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying NOTICE file for the complete license)
*
* For more information, see http://www.boost.org
*/
#pragma once
#include <thrust/detail/config.h>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <thrust/detail/type_traits.h>
#include <thrust/detail/preprocessor.h>
THRUST_NAMESPACE_BEGIN
namespace detail
{
template <typename, bool x>
struct depend_on_instantiation
{
THRUST_INLINE_INTEGRAL_MEMBER_CONSTANT bool value = x;
};
#if THRUST_CPP_DIALECT >= 2011
# if THRUST_CPP_DIALECT >= 2017
# define THRUST_STATIC_ASSERT(B) static_assert(B)
# else
# define THRUST_STATIC_ASSERT(B) static_assert(B, "static assertion failed")
# endif
# define THRUST_STATIC_ASSERT_MSG(B, msg) static_assert(B, msg)
#else // Older than C++11.
// HP aCC cannot deal with missing names for template value parameters.
template <bool x> struct STATIC_ASSERTION_FAILURE;
template <> struct STATIC_ASSERTION_FAILURE<true> {};
// HP aCC cannot deal with missing names for template value parameters.
template <int x> struct static_assert_test {};
#if ( (THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_GCC) \
&& (THRUST_GCC_VERSION >= 40800)) \
|| (THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_CLANG)
// Clang and GCC 4.8+ will complain about this typedef being unused unless we
// annotate it as such.
# define THRUST_STATIC_ASSERT(B) \
typedef THRUST_NS_QUALIFIER::detail::static_assert_test< \
sizeof(THRUST_NS_QUALIFIER::detail::STATIC_ASSERTION_FAILURE<(bool)(B)>)\
> \
THRUST_PP_CAT2(thrust_static_assert_typedef_, __LINE__) \
__attribute__((unused)) \
/**/
#else
# define THRUST_STATIC_ASSERT(B) \
typedef THRUST_NS_QUALIFIER::detail::static_assert_test< \
sizeof(THRUST_NS_QUALIFIER::detail::STATIC_ASSERTION_FAILURE<(bool)(B)>)\
> \
THRUST_PP_CAT2(thrust_static_assert_typedef_, __LINE__) \
/**/
#endif
#define THRUST_STATIC_ASSERT_MSG(B, msg) THRUST_STATIC_ASSERT(B)
#endif // THRUST_CPP_DIALECT >= 2011
} // namespace detail
THRUST_NAMESPACE_END
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