43 lines
1.8 KiB
C++
43 lines
1.8 KiB
C++
|
// 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
|