| // boost/system/api_config.hpp -------------------------------------------------------// | |
| // Copyright Beman Dawes 2003, 2006, 2010 | |
| // 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. | |
| // | |
| // In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are | |
| // 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. | |
| // | |
| //--------------------------------------------------------------------------------------// | |
| #ifndef BOOST_SYSTEM_API_CONFIG_HPP | |
| #define BOOST_SYSTEM_API_CONFIG_HPP | |
| # if defined(BOOST_POSIX_API) || defined(BOOST_WINDOWS_API) | |
| # error user defined BOOST_POSIX_API or BOOST_WINDOWS_API not supported | |
| # 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 | |
| # define BOOST_POSIX_API | |
| # endif | |
| #endif // BOOST_SYSTEM_API_CONFIG_HPP |