attributes.hpp

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// Copyright (c) 2021-2023 by Apex.AI Inc. All rights reserved.
// Copyright (c) 2025 Contributors to the Eclipse Foundation
//
// See the NOTICE file(s) distributed with this work for additional
// information regarding copyright ownership.
//
// This program and the accompanying materials are made available under the
// terms of the Apache Software License 2.0 which is available at
// https://www.apache.org/licenses/LICENSE-2.0, or the MIT license
// which is available at https://opensource.org/licenses/MIT.
//
// SPDX-License-Identifier: Apache-2.0 OR MIT
 
#ifndef IOX2_BB_DETAIL_ATTRIBUTES_HPP
#define IOX2_BB_DETAIL_ATTRIBUTES_HPP
 
namespace iox2 {
namespace bb {
namespace detail {
template <typename T>
// AXIVION Next Construct AutosarC++19_03-M0.1.8 : No side effects are the intended behavior of the function
// NOLINTNEXTLINE(cppcoreguidelines-missing-std-forward) intended for this function
inline void iox2_discard_result_impl(T&& /* unused */) noexcept {
}
} // namespace detail
} // namespace bb
} // namespace iox2
 
// AXIVION Next Construct AutosarC++19_03-A16.0.1 : Aliasing of fully qualified templated function.
//                                                  Improves readability. No risks apparent.
// NOLINTJUSTIFICATION cannot be implemented with a function, required as inline code
// NOLINTBEGIN(cppcoreguidelines-macro-usage)
#define IOX2_DISCARD_RESULT(expr) ::iox2::bb::detail::iox2_discard_result_impl(expr)
 
#if defined(_MSVC_LANG) && (_MSVC_LANG > __cplusplus)
#define IOX2_CXX_STANDARD_VERSION _MSVC_LANG
#else
#define IOX2_CXX_STANDARD_VERSION __cplusplus
#endif
 
 
#if IOX2_CXX_STANDARD_VERSION >= 201703L
#define IOX2_NO_DISCARD [[nodiscard]]
#else
#define IOX2_NO_DISCARD
#endif
 
//    [[fallthrough]] supported since gcc 7 (https://gcc.gnu.org/projects/cxx-status.html)
 
#if IOX2_CXX_STANDARD_VERSION >= 201703L
// clang prints a warning therefore we exclude it here
#define IOX2_FALLTHROUGH [[fallthrough]]
#elif (defined(__GNUC__) && (__GNUC__ >= 7)) || defined(__clang__)
#define IOX2_FALLTHROUGH [[gnu::fallthrough]]
#else
#define IOX2_FALLTHROUGH
#endif
 
#if IOX2_CXX_STANDARD_VERSION >= 201703L
#define IOX2_MAYBE_UNUSED [[maybe_unused]]
#elif (defined(__GNUC__) && (__GNUC__ >= 7)) || defined(__clang__)
#define IOX2_MAYBE_UNUSED [[gnu::unused]]
#else
#define IOX2_MAYBE_UNUSED
#endif
 
#if IOX2_CXX_STANDARD_VERSION >= 202002L
#define IOX2_HAS_CONSTEXPR_DTOR 1
#define IOX2_CONSTEXPR_DTOR constexpr
#else
#define IOX2_HAS_CONSTEXPR_DTOR 0
#define IOX2_CONSTEXPR_DTOR
#endif
 
// NOLINTEND(cppcoreguidelines-macro-usage)
 
#endif // IOX2_BB_DETAIL_ATTRIBUTES_HPP