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//
// detail/config.hpp
// ~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_CONFIG_HPP
#define BOOST_ASIO_DETAIL_CONFIG_HPP
#include <boost/config.hpp>
#include <boost/version.hpp>
// Default to a header-only implementation. The user must specifically request
// separate compilation by defining either BOOST_ASIO_SEPARATE_COMPILATION or
// BOOST_ASIO_DYN_LINK (as a DLL/shared library implies separate compilation).
#if !defined(BOOST_ASIO_HEADER_ONLY)
# if !defined(BOOST_ASIO_SEPARATE_COMPILATION)
# if !defined(BOOST_ASIO_DYN_LINK)
# define BOOST_ASIO_HEADER_ONLY
# endif // !defined(BOOST_ASIO_DYN_LINK)
# endif // !defined(BOOST_ASIO_SEPARATE_COMPILATION)
#endif // !defined(BOOST_ASIO_HEADER_ONLY)
#if defined(BOOST_ASIO_HEADER_ONLY)
# define BOOST_ASIO_DECL inline
#else // defined(BOOST_ASIO_HEADER_ONLY)
# if defined(BOOST_HAS_DECLSPEC)
// We need to import/export our code only if the user has specifically asked
// for it by defining BOOST_ASIO_DYN_LINK.
# if defined(BOOST_ASIO_DYN_LINK)
// Export if this is our own source, otherwise import.
# if defined(BOOST_ASIO_SOURCE)
# define BOOST_ASIO_DECL __declspec(dllexport)
# else // defined(BOOST_ASIO_SOURCE)
# define BOOST_ASIO_DECL __declspec(dllimport)
# endif // defined(BOOST_ASIO_SOURCE)
# endif // defined(BOOST_ASIO_DYN_LINK)
# endif // defined(BOOST_HAS_DECLSPEC)
#endif // defined(BOOST_ASIO_HEADER_ONLY)
// If BOOST_ASIO_DECL isn't defined yet define it now.
#if !defined(BOOST_ASIO_DECL)
# define BOOST_ASIO_DECL
#endif // !defined(BOOST_ASIO_DECL)
// Support move construction and assignment on compilers known to allow it.
#if !defined(BOOST_ASIO_DISABLE_MOVE)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_MOVE
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_MOVE)
// If BOOST_ASIO_MOVE_CAST isn't defined, and move support is available, define
// BOOST_ASIO_MOVE_ARG and BOOST_ASIO_MOVE_CAST to take advantage of rvalue
// references and perfect forwarding.
#if defined(BOOST_ASIO_HAS_MOVE) && !defined(BOOST_ASIO_MOVE_CAST)
# define BOOST_ASIO_MOVE_ARG(type) type&&
# define BOOST_ASIO_MOVE_CAST(type) static_cast<type&&>
#endif // defined(BOOST_ASIO_HAS_MOVE) && !defined(BOOST_ASIO_MOVE_CAST)
// If BOOST_ASIO_MOVE_CAST still isn't defined, default to a C++03-compatible
// implementation. Note that older g++ and MSVC versions don't like it when you
// pass a non-member function through a const reference, so for most compilers
// we'll play it safe and stick with the old approach of passing the handler by
// value.
#if !defined(BOOST_ASIO_MOVE_CAST)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# define BOOST_ASIO_MOVE_ARG(type) const type&
# else // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# define BOOST_ASIO_MOVE_ARG(type) type
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
# elif defined(BOOST_MSVC)
# if (_MSC_VER >= 1400)
# define BOOST_ASIO_MOVE_ARG(type) const type&
# else // (_MSC_VER >= 1400)
# define BOOST_ASIO_MOVE_ARG(type) type
# endif // (_MSC_VER >= 1400)
# else
# define BOOST_ASIO_MOVE_ARG(type) type
# endif
# define BOOST_ASIO_MOVE_CAST(type) static_cast<const type&>
#endif // !defined_BOOST_ASIO_MOVE_CAST
// Support variadic templates on compilers known to allow it.
#if !defined(BOOST_ASIO_DISABLE_VARIADIC_TEMPLATES)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_VARIADIC_TEMPLATES
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_VARIADIC_TEMPLATES)
// Standard library support for system errors.
#if !defined(BOOST_ASIO_DISABLE_STD_SYSTEM_ERROR)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_SYSTEM_ERROR
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_STD_SYSTEM_ERROR)
// Compliant C++11 compilers put noexcept specifiers on error_category members.
#if !defined(BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT noexcept(true)
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if !defined(BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT)
# define BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT
# endif // !defined(BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT)
#endif // !defined(BOOST_ASIO_ERROR_CATEGORY_NOEXCEPT)
// Standard library support for arrays.
#if !defined(BOOST_ASIO_DISABLE_STD_ARRAY)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_ARRAY
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_MSVC)
# if (_MSC_VER >= 1600)
# define BOOST_ASIO_HAS_STD_ARRAY
# endif // (_MSC_VER >= 1600)
# endif // defined(BOOST_MSVC)
#endif // !defined(BOOST_ASIO_DISABLE_STD_ARRAY)
// Standard library support for shared_ptr and weak_ptr.
#if !defined(BOOST_ASIO_DISABLE_STD_SHARED_PTR)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_SHARED_PTR
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
# if defined(BOOST_MSVC)
# if (_MSC_VER >= 1600)
# define BOOST_ASIO_HAS_STD_SHARED_PTR
# endif // (_MSC_VER >= 1600)
# endif // defined(BOOST_MSVC)
#endif // !defined(BOOST_ASIO_DISABLE_STD_SHARED_PTR)
// Standard library support for atomic operations.
#if !defined(BOOST_ASIO_DISABLE_STD_ATOMIC)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_ATOMIC
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_STD_ATOMIC)
// Standard library support for chrono. Some standard libraries (such as the
// libstdc++ shipped with gcc 4.6) provide monotonic_clock as per early C++0x
// drafts, rather than the eventually standardised name of steady_clock.
#if !defined(BOOST_ASIO_DISABLE_STD_CHRONO)
# if defined(__GNUC__)
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# if defined(__GXX_EXPERIMENTAL_CXX0X__)
# define BOOST_ASIO_HAS_STD_CHRONO
# if ((__GNUC__ == 4) && (__GNUC_MINOR__ == 6))
# define BOOST_ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ == 6))
# endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
# endif // defined(__GNUC__)
#endif // !defined(BOOST_ASIO_DISABLE_STD_CHRONO)
// Boost support for chrono.
#if !defined(BOOST_ASIO_DISABLE_BOOST_CHRONO)
# if (BOOST_VERSION >= 104700)
# define BOOST_ASIO_HAS_BOOST_CHRONO
# endif // (BOOST_VERSION >= 104700)
#endif // !defined(BOOST_ASIO_DISABLE_BOOST_CHRONO)
// Windows: target OS version.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
# if defined(_MSC_VER) || defined(__BORLANDC__)
# pragma message( \
"Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately. For example:\n"\
"- add -D_WIN32_WINNT=0x0501 to the compiler command line; or\n"\
"- add _WIN32_WINNT=0x0501 to your project's Preprocessor Definitions.\n"\
"Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).")
# else // defined(_MSC_VER) || defined(__BORLANDC__)
# warning Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately.
# warning For example, add -D_WIN32_WINNT=0x0501 to the compiler command line.
# warning Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).
# endif // defined(_MSC_VER) || defined(__BORLANDC__)
# define _WIN32_WINNT 0x0501
# endif // !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
# if defined(_MSC_VER)
# if defined(_WIN32) && !defined(WIN32)
# if !defined(_WINSOCK2API_)
# define WIN32 // Needed for correct types in winsock2.h
# else // !defined(_WINSOCK2API_)
# error Please define the macro WIN32 in your compiler options
# endif // !defined(_WINSOCK2API_)
# endif // defined(_WIN32) && !defined(WIN32)
# endif // defined(_MSC_VER)
# if defined(__BORLANDC__)
# if defined(__WIN32__) && !defined(WIN32)
# if !defined(_WINSOCK2API_)
# define WIN32 // Needed for correct types in winsock2.h
# else // !defined(_WINSOCK2API_)
# error Please define the macro WIN32 in your compiler options
# endif // !defined(_WINSOCK2API_)
# endif // defined(__WIN32__) && !defined(WIN32)
# endif // defined(__BORLANDC__)
# if defined(__CYGWIN__)
# if !defined(__USE_W32_SOCKETS)
# error You must add -D__USE_W32_SOCKETS to your compiler options.
# endif // !defined(__USE_W32_SOCKETS)
# endif // defined(__CYGWIN__)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: minimise header inclusion.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN)
# if !defined(WIN32_LEAN_AND_MEAN)
# define WIN32_LEAN_AND_MEAN
# endif // !defined(WIN32_LEAN_AND_MEAN)
# endif // !defined(BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: suppress definition of "min" and "max" macros.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(BOOST_ASIO_NO_NOMINMAX)
# if !defined(NOMINMAX)
# define NOMINMAX 1
# endif // !defined(NOMINMAX)
# endif // !defined(BOOST_ASIO_NO_NOMINMAX)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Windows: IO Completion Ports.
#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
# if !defined(UNDER_CE)
# if !defined(BOOST_ASIO_DISABLE_IOCP)
# define BOOST_ASIO_HAS_IOCP 1
# endif // !defined(BOOST_ASIO_DISABLE_IOCP)
# endif // !defined(UNDER_CE)
# endif // defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
// Linux: epoll, eventfd and timerfd.
#if defined(__linux__)
# include <linux/version.h>
# if !defined(BOOST_ASIO_DISABLE_EPOLL)
# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
# define BOOST_ASIO_HAS_EPOLL 1
# endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
# endif // !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
# define BOOST_ASIO_HAS_EVENTFD 1
# endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
# endif // !defined(BOOST_ASIO_DISABLE_EVENTFD)
# if defined(BOOST_ASIO_HAS_EPOLL)
# if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
# define BOOST_ASIO_HAS_TIMERFD 1
# endif // (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
# endif // defined(BOOST_ASIO_HAS_EPOLL)
#endif // defined(__linux__)
// Mac OS X, FreeBSD, NetBSD, OpenBSD: kqueue.
#if (defined(__MACH__) && defined(__APPLE__)) \
|| defined(__FreeBSD__) \
|| defined(__NetBSD__) \
|| defined(__OpenBSD__)
# if !defined(BOOST_ASIO_DISABLE_KQUEUE)
# define BOOST_ASIO_HAS_KQUEUE 1
# endif // !defined(BOOST_ASIO_DISABLE_KQUEUE)
#endif // (defined(__MACH__) && defined(__APPLE__))
// || defined(__FreeBSD__)
// || defined(__NetBSD__)
// || defined(__OpenBSD__)
// Solaris: /dev/poll.
#if defined(__sun)
# if !defined(BOOST_ASIO_DISABLE_DEV_POLL)
# define BOOST_ASIO_HAS_DEV_POLL 1
# endif // !defined(BOOST_ASIO_DISABLE_DEV_POLL)
#endif // defined(__sun)
// Serial ports.
#if defined(BOOST_ASIO_HAS_IOCP) \
|| !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# if !defined(__SYMBIAN32__)
# if !defined(BOOST_ASIO_DISABLE_SERIAL_PORT)
# define BOOST_ASIO_HAS_SERIAL_PORT 1
# endif // !defined(BOOST_ASIO_DISABLE_SERIAL_PORT)
# endif // !defined(__SYMBIAN32__)
#endif // defined(BOOST_ASIO_HAS_IOCP)
// || !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
// Windows: stream handles.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_STREAM_HANDLE 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
// Windows: random access handles.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
// Windows: object handles.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
# if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
# if !defined(UNDER_CE)
# define BOOST_ASIO_HAS_WINDOWS_OBJECT_HANDLE 1
# endif // !defined(UNDER_CE)
# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
// Windows: OVERLAPPED wrapper.
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_OVERLAPPED_PTR 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
// POSIX: stream-oriented file descriptors.
#if !defined(BOOST_ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_POSIX_STREAM_DESCRIPTOR 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
// UNIX domain sockets.
#if !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_LOCAL_SOCKETS 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_LOCAL_SOCKETS)
// Can use sigaction() instead of signal().
#if !defined(BOOST_ASIO_DISABLE_SIGACTION)
# if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
# define BOOST_ASIO_HAS_SIGACTION 1
# endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__)
#endif // !defined(BOOST_ASIO_DISABLE_SIGACTION)
// Can use signal().
#if !defined(BOOST_ASIO_DISABLE_SIGNAL)
# if !defined(UNDER_CE)
# define BOOST_ASIO_HAS_SIGNAL 1
# endif // !defined(UNDER_CE)
#endif // !defined(BOOST_ASIO_DISABLE_SIGNAL)
// Support for the __thread keyword extension.
#if !defined(BOOST_ASIO_DISABLE_THREAD_KEYWORD_EXTENSION)
# if defined(__linux__)
# if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
# if ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)
# if !defined(__INTEL_COMPILER) && !defined(__ICL)
# define BOOST_ASIO_HAS_THREAD_KEYWORD_EXTENSION 1
# elif defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1100)
# define BOOST_ASIO_HAS_THREAD_KEYWORD_EXTENSION 1
# endif // defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1100)
# endif // ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)
# endif // defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
# endif // defined(__linux__)
#endif // !defined(BOOST_ASIO_DISABLE_THREAD_KEYWORD_EXTENSION)
#endif // BOOST_ASIO_DETAIL_CONFIG_HPP
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Swift