124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
// boost/chrono/config.hpp -------------------------------------------------//
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// Copyright Beman Dawes 2003, 2006, 2008
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// Copyright 2009 Vicente J. Botet Escriba
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/chrono for documentation.
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#ifndef BOOST_EX_CHRONO_CONFIG_HPP
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#define BOOST_EX_CHRONO_CONFIG_HPP
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#include <boost/config.hpp>
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// BOOST_EX_CHRONO_POSIX_API, BOOST_EX_CHRONO_MAC_API, or BOOST_EX_CHRONO_WINDOWS_API
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// can be defined by the user to specify which API should be used
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#if defined(BOOST_EX_CHRONO_WINDOWS_API)
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# warning Boost.Chrono will use the Windows API
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#elif defined(BOOST_EX_CHRONO_MAC_API)
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# warning Boost.Chrono will use the Mac API
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#elif defined(BOOST_EX_CHRONO_POSIX_API)
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# warning Boost.Chrono will use the POSIX API
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#endif
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# if defined( BOOST_EX_CHRONO_WINDOWS_API ) && defined( BOOST_EX_CHRONO_POSIX_API )
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# error both BOOST_EX_CHRONO_WINDOWS_API and BOOST_EX_CHRONO_POSIX_API are defined
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# elif defined( BOOST_EX_CHRONO_WINDOWS_API ) && defined( BOOST_EX_CHRONO_MAC_API )
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# error both BOOST_EX_CHRONO_WINDOWS_API and BOOST_EX_CHRONO_MAC_API are defined
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# elif defined( BOOST_EX_CHRONO_MAC_API ) && defined( BOOST_EX_CHRONO_POSIX_API )
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# error both BOOST_EX_CHRONO_MAC_API and BOOST_EX_CHRONO_POSIX_API are defined
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# elif !defined( BOOST_EX_CHRONO_WINDOWS_API ) && !defined( BOOST_EX_CHRONO_MAC_API ) && !defined( BOOST_EX_CHRONO_POSIX_API )
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# if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32))
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# define BOOST_EX_CHRONO_WINDOWS_API
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# define BOOST_EX_CHRONO_HAS_CLOCK_MONOTONIC
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# define BOOST_EX_CHRONO_HAS_THREAD_CLOCK
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# define BOOST_EX_CHRONO_THREAD_CLOCK_IS_MONOTONIC true
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# elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
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# define BOOST_EX_CHRONO_MAC_API
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# define BOOST_EX_CHRONO_HAS_CLOCK_MONOTONIC
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# define BOOST_EX_CHRONO_THREAD_CLOCK_IS_MONOTONIC true
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# else
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# define BOOST_EX_CHRONO_POSIX_API
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# endif
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# endif
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# if defined( BOOST_EX_CHRONO_POSIX_API )
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# include <time.h> //to check for CLOCK_REALTIME and CLOCK_MONOTONIC and _POSIX_THREAD_CPUTIME
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# if defined(CLOCK_REALTIME)
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# if defined(CLOCK_MONOTONIC)
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# define BOOST_EX_CHRONO_HAS_CLOCK_MONOTONIC
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# endif
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# else
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# error <time.h> does not supply CLOCK_REALTIME
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# endif
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# if defined(_POSIX_THREAD_CPUTIME)
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# define BOOST_EX_CHRONO_HAS_THREAD_CLOCK
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# define BOOST_EX_CHRONO_THREAD_CLOCK_IS_MONOTONIC true
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# endif
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# endif
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// enable dynamic linking on Windows ---------------------------------------//
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//# if (defined(BOOST_ALL_DYN_LINK) || defined(BOOST_EX_CHRONO_DYN_LINK)) && defined(__BORLANDC__) && defined(__WIN32__)
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//# error Dynamic linking Boost.System does not work for Borland; use static linking instead
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//# endif
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#ifdef BOOST_HAS_DECLSPEC // defined by boost.config
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// we need to import/export our code only if the user has specifically
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// asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
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// libraries to be dynamically linked, or BOOST_EX_CHRONO_DYN_LINK
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// if they want just this one to be dynamically liked:
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#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_EX_CHRONO_DYN_LINK)
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// export if this is our own source, otherwise import:
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#ifdef BOOST_EX_CHRONO_SOURCE
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# define BOOST_EX_CHRONO_DECL __declspec(dllexport)
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#else
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# define BOOST_EX_CHRONO_DECL __declspec(dllimport)
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#endif // BOOST_EX_CHRONO_SOURCE
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#endif // DYN_LINK
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#endif // BOOST_HAS_DECLSPEC
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//
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// if BOOST_EX_CHRONO_DECL isn't defined yet define it now:
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#ifndef BOOST_EX_CHRONO_DECL
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#define BOOST_EX_CHRONO_DECL
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#endif
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// define constexpr related macros ------------------------------//
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//~ #include <boost/config.hpp>
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#if defined(BOOST_NO_CXX11_CONSTEXPR)
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#define BOOST_EX_CHRONO_CONSTEXPR
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#define BOOST_EX_CHRONO_CONST_REF const&
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#else
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#define BOOST_EX_CHRONO_CONSTEXPR constexpr
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#define BOOST_EX_CHRONO_CONST_REF
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#endif
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// enable automatic library variant selection ------------------------------//
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#if !defined(BOOST_EX_CHRONO_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_EX_CHRONO_NO_LIB)
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//
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// Set the name of our library; this will get undef'ed by auto_link.hpp
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// once it's done with it:
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//
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#define BOOST_LIB_NAME boost_chrono
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//
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// If we're importing code from a dll, then tell auto_link.hpp about it:
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//
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#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_EX_CHRONO_DYN_LINK)
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# define BOOST_DYN_LINK
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#endif
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//
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// And include the header that does the work:
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//
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#include <boost/config/auto_link.hpp>
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#endif // auto-linking disabled
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#endif // BOOST_EX_CHRONO_CONFIG_HPP
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