inspircd/include/compat.h

/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2013-2014, 2017, 2021 Sadie Powell <sadie@witchery.services>
 *   Copyright (C) 2013-2014, 2016 Attila Molnar <attilamolnar@hush.com>
 *
 * This file is part of InspIRCd.  InspIRCd is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, version 2.
 *
 * This program 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 General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#pragma once

/**
 * Some implementations of the C++11 standard library are incomplete so we use
 * the implementation of the same types from C++ Technical Report 1 instead.
 */
#if defined _LIBCPP_VERSION || defined _WIN32 || __cplusplus >= 201103L
# define TR1NS std
# include <array>
# include <functional>
# include <unordered_map>
# include <type_traits>
#else
# define TR1NS std::tr1
# include <tr1/array>
# include <tr1/functional>
# include <tr1/unordered_map>
# include <tr1/type_traits>
#endif

/**
 * This macro enables the compile-time checking of printf format strings. This
 * makes the compiler show a warning if the format of a printf arguments are
 * incorrect.
 */
#if defined __clang__ || defined __GNUC__
# define CUSTOM_PRINTF(stringpos, firstpos) __attribute__((format(printf, stringpos, firstpos)))
#else
# define CUSTOM_PRINTF(stringpos, firstpos)
#endif

/**
 * These macros enable the use of the C++11 override control keywords in
 * compilers which support them.
 */
#if __cplusplus >= 201103L
# define HAS_CXX11_FINAL_OVERRIDE
#elif defined __clang__
# if __has_feature(cxx_override_control)
#  define HAS_CXX11_FINAL_OVERRIDE
# endif
#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
# if defined __GXX_EXPERIMENTAL_CXX0X__
#  define HAS_CXX11_FINAL_OVERRIDE
# endif
#elif _MSC_VER >= 1700
# define HAS_CXX11_FINAL_OVERRIDE
#endif

#if defined HAS_CXX11_FINAL_OVERRIDE
# define CXX11_FINAL final
# define CXX11_OVERRIDE override
#else
# define CXX11_FINAL
# define CXX11_OVERRIDE
#endif

/**
 * This macro allows methods to be marked as deprecated. To use this, wrap the
 * method declaration in the header file with the macro.
 */
#if defined __clang__ || defined __GNUC__
# define DEPRECATED_METHOD(function) function __attribute__((deprecated))
#elif defined _MSC_VER
# define DEPRECATED_METHOD(function) __declspec(deprecated) function
#else
# define DEPRECATED_METHOD(function) function
#endif

/**
 * Windows is very different to UNIX so we have to wrap certain features in
 * order to build on Windows correctly.
 */
#if defined _WIN32
# include "inspircd_win32wrapper.h"
# include "threadengines/threadengine_win32.h"
#else
# define ENTRYPOINT int main(int argc, char** argv)
# define DllExport __attribute__ ((visibility ("default")))
# define CoreExport __attribute__ ((visibility ("default")))
# include <unistd.h>
# include "threadengines/threadengine_pthread.h"
#endif