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aka_enum_macros.hh
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			/**
			* Copyright (©) 2018-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
			* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			*
			* This file is part of Akantu
			*
			* Akantu is free software: you can redistribute it and/or modify it under the
			* terms of the GNU Lesser General Public License as published by the Free
			* Software Foundation, either version 3 of the License, or (at your option) any
			* later version.
			*
			* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
			* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
			* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
			* details.
			*
			* You should have received a copy of the GNU Lesser General Public License
			* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
			*/

			/* -------------------------------------------------------------------------- */
			#include <algorithm>
			#include <cstdlib> // std::size_t
			#include <string>

			/* -------------------------------------------------------------------------- */
			#ifndef AKANTU_AKA_ENUM_MACROS_HH_
			#define AKANTU_AKA_ENUM_MACROS_HH_

			#define AKANTU_PP_ENUM(s, data, i, elem) \
			BOOST_PP_TUPLE_REM() \
			elem BOOST_PP_COMMA_IF(BOOST_PP_NOT_EQUAL(i, BOOST_PP_DEC(data)))

			#if (defined(__GNUC__) \|\| defined(__GNUG__))
			#define AKA_GCC_VERSION \
			(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
			#if AKA_GCC_VERSION < 60000
			#define AKANTU_ENUM_HASH(type_name) \
			namespace std { \
			template <> struct hash<::akantu::type_name> { \
			using argument_type = ::akantu::type_name; \
			auto operator()(const argument_type &e) const noexcept { \
			auto ue = underlying_type_t<argument_type>(e); \
			return uh(ue); \
			} \
			\
			private: \
			const hash<underlying_type_t<argument_type>> uh{}; \
			}; \
			}
			#else
			#define AKANTU_ENUM_HASH(type_name)
			#endif // AKA_GCC_VERSION
			#endif // GNU

			#define AKANTU_PP_CAT(s, data, elem) BOOST_PP_CAT(data, elem)

			#define AKANTU_PP_TYPE_TO_STR(s, data, elem) \
			({BOOST_PP_CAT(data, elem), BOOST_PP_STRINGIZE(elem)})

			#define AKANTU_PP_STR_TO_TYPE(s, data, elem) \
			({BOOST_PP_STRINGIZE(elem), BOOST_PP_CAT(data, elem)})

			#define AKANTU_CLASS_ENUM_DECLARE(type_name, list) \
			enum class type_name { \
			BOOST_PP_SEQ_ENUM(BOOST_PP_SEQ_TRANSFORM(AKANTU_PP_CAT, _, list)) \
			};

			#define AKANTU_ENUM_OUTPUT_STREAM_(type_name, list, prefix) \
			} \
			AKANTU_ENUM_HASH(type_name) \
			namespace std { \
			inline auto to_string(const ::akantu::type_name &type) -> string { \
			using namespace akantu; \
			static unordered_map<::akantu::type_name, string> convert{ \
			BOOST_PP_SEQ_FOR_EACH_I( \
			AKANTU_PP_ENUM, BOOST_PP_SEQ_SIZE(list), \
			BOOST_PP_SEQ_TRANSFORM(AKANTU_PP_TYPE_TO_STR, prefix, list))}; \
			return convert.at(type); \
			} \
			} /* namespace std */ \
			namespace akantu { \
			inline auto operator<<(std::ostream &stream, const type_name &type) \
			-> std::ostream & { \
			stream << std::to_string(type); \
			return stream; \
			}

			#define AKANTU_ENUM_INPUT_STREAM_(type_name, list, prefix) \
			inline auto operator>>(std::istream &stream, type_name &type) \
			->std::istream & { \
			std::string str; \
			stream >> str; /* NOLINT */ \
			static std::unordered_map<std::string, type_name> convert{ \
			BOOST_PP_SEQ_FOR_EACH_I( \
			AKANTU_PP_ENUM, BOOST_PP_SEQ_SIZE(list), \
			BOOST_PP_SEQ_TRANSFORM(AKANTU_PP_STR_TO_TYPE, prefix, list))}; \
			try { \
			type = convert.at(str); \
			} catch (std::out_of_range &) { \
			std::ostringstream values; \
			std::for_each(convert.begin(), convert.end(), [&values](auto &&pair) { \
			static bool first = true; \
			if (not first) \
			values << ", "; \
			values << "\"" << pair.first << "\""; \
			first = false; \
			}); \
			AKANTU_EXCEPTION("The value " << str << " is not a valid " \
			<< BOOST_PP_STRINGIZE(type_name) << " valid values are " \
			<< values.str()); \
			} \
			return stream; \
			}

			#define AKANTU_CLASS_ENUM_OUTPUT_STREAM(type_name, list) \
			AKANTU_ENUM_OUTPUT_STREAM_(type_name, list, type_name::_)

			#define AKANTU_ENUM_OUTPUT_STREAM(type_name, list) \
			AKANTU_ENUM_OUTPUT_STREAM_(type_name, list, )

			#define AKANTU_CLASS_ENUM_INPUT_STREAM(type_name, list) \
			AKANTU_ENUM_INPUT_STREAM_(type_name, list, type_name::_)

			#define AKANTU_ENUM_INPUT_STREAM(type_name, list) \
			AKANTU_ENUM_INPUT_STREAM_(type_name, list, )

			#endif /* AKANTU_AKA_ENUM_MACROS_HH_ */

rAKA/src/common/aka_enum_macros.hh59ebe4582f96features/9-generate-a…

aka_enum_macros.hhView Options

rAKA/src/common/aka_enum_macros.hh
59ebe4582f96features/9-generate-a…

aka_enum_macros.hh
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