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Revert changes to api_config.hpp

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This commit is contained in:
Peter Dimov
2018-09-16 05:23:35 +03:00
parent 038786179a
commit f14e9e7d5c
1 changed files with 34 additions and 16 deletions
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50
include/boost/system/api_config.hpp
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@ -1,24 +1,42 @@
#ifndef BOOST_SYSTEM_API_CONFIG_HPP_INCLUDED // boost/system/api_config.hpp -------------------------------------------------------//
#define BOOST_SYSTEM_API_CONFIG_HPP_INCLUDED
// Copyright Beman Dawes 2003, 2006, 2010 // Copyright Beman Dawes 2003, 2006, 2010
// Copyright 2018 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// See http://www.boost.org/libs/system for documentation.
//--------------------------------------------------------------------------------------//
// Boost.System calls operating system API functions to implement system error category
// functions. Usually there is no question as to which API is to be used.
// //
// Distributed under the Boost Software License, Version 1.0. // In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are
// See http://www.boost.org/LICENSE_1_0.txt // available. Chaos ensues if other code thinks one is in use when Boost.System was
// actually built with the other. This header centralizes the API choice and prevents
// user definition of API macros, thus elminating the possibility of mismatches and the
// need to test configurations with little or no practical value.
// //
// See http://www.boost.org/libs/system for documentation.
// This header is no longer used by Boost.System. //--------------------------------------------------------------------------------------//
// Its use is discouraged and it will be deprecated.
// Definition of BOOST_*_API retained for compatibility. #ifndef BOOST_SYSTEM_API_CONFIG_HPP
#define BOOST_SYSTEM_API_CONFIG_HPP
#if defined(_WIN32) || defined(__CYGWIN__) # if defined(BOOST_POSIX_API) || defined(BOOST_WINDOWS_API)
// Windows default, including MinGW and Cygwin # error user defined BOOST_POSIX_API or BOOST_WINDOWS_API not supported
# define BOOST_WINDOWS_API # endif
// BOOST_POSIX_API or BOOST_WINDOWS_API specify which API to use
// Cygwin/MinGW does not predefine _WIN32.
// Standalone MinGW and all other known Windows compilers do predefine _WIN32
// Compilers that predefine _WIN32 or __MINGW32__ do so for Windows 64-bit builds too.
# if defined(_WIN32) || defined(__CYGWIN__) // Windows default, including MinGW and Cygwin
# define BOOST_WINDOWS_API
# else # else
# define BOOST_POSIX_API # define BOOST_POSIX_API
#endif # endif
#endif // BOOST_SYSTEM_API_CONFIG_HPP_INCLUDED #endif // BOOST_SYSTEM_API_CONFIG_HPP