boost/chrono/config.hpp

0001 //  boost/chrono/config.hpp  -------------------------------------------------//
0002
0003 //  Copyright Beman Dawes 2003, 2006, 2008
0004 //  Copyright 2009-2011 Vicente J. Botet Escriba
0005 //  Copyright (c) Microsoft Corporation 2014
0006
0007 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009
0010 //  See http://www.boost.org/libs/chrono for documentation.
0011
0012 #ifndef BOOST_CHRONO_CONFIG_HPP
0013 #define BOOST_CHRONO_CONFIG_HPP
0014
0015 #include <boost/chrono/detail/requires_cxx11.hpp>
0016 #include <boost/config.hpp>
0017 #include <boost/predef.h>
0018
0019 #if !defined BOOST_CHRONO_VERSION
0020 #define BOOST_CHRONO_VERSION 1
0021 #else
0022 #if BOOST_CHRONO_VERSION!=1  && BOOST_CHRONO_VERSION!=2
0023 #error "BOOST_CHRONO_VERSION must be 1 or 2"
0024 #endif
0025 #endif
0026
0027 #if defined(BOOST_CHRONO_SOURCE) && !defined(BOOST_USE_WINDOWS_H)
0028 #define BOOST_USE_WINDOWS_H
0029 #endif
0030
0031 #if ! defined BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT \
0032     && ! defined BOOST_CHRONO_DONT_PROVIDE_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT
0033
0034 # define BOOST_CHRONO_PROVIDES_DATE_IO_FOR_SYSTEM_CLOCK_TIME_POINT
0035
0036 #endif
0037
0038 //  BOOST_CHRONO_POSIX_API, BOOST_CHRONO_MAC_API, or BOOST_CHRONO_WINDOWS_API
0039 //  can be defined by the user to specify which API should be used
0040
0041 #if defined(BOOST_CHRONO_WINDOWS_API)
0042 # warning Boost.Chrono will use the Windows API
0043 #elif defined(BOOST_CHRONO_MAC_API)
0044 # warning Boost.Chrono will use the Mac API
0045 #elif defined(BOOST_CHRONO_POSIX_API)
0046 # warning Boost.Chrono will use the POSIX API
0047 #endif
0048
0049 # if defined( BOOST_CHRONO_WINDOWS_API ) && defined( BOOST_CHRONO_POSIX_API )
0050 #   error both BOOST_CHRONO_WINDOWS_API and BOOST_CHRONO_POSIX_API are defined
0051 # elif defined( BOOST_CHRONO_WINDOWS_API ) && defined( BOOST_CHRONO_MAC_API )
0052 #   error both BOOST_CHRONO_WINDOWS_API and BOOST_CHRONO_MAC_API are defined
0053 # elif defined( BOOST_CHRONO_MAC_API ) && defined( BOOST_CHRONO_POSIX_API )
0054 #   error both BOOST_CHRONO_MAC_API and BOOST_CHRONO_POSIX_API are defined
0055 # elif !defined( BOOST_CHRONO_WINDOWS_API ) && !defined( BOOST_CHRONO_MAC_API ) && !defined( BOOST_CHRONO_POSIX_API )
0056 #   if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32))
0057 #     define BOOST_CHRONO_WINDOWS_API
0058 #   elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
0059 #     define BOOST_CHRONO_MAC_API
0060 #   else
0061 #     define BOOST_CHRONO_POSIX_API
0062 #   endif
0063 # endif
0064
0065 # if defined( BOOST_CHRONO_WINDOWS_API )
0066 #   ifndef UNDER_CE
0067 #     define BOOST_CHRONO_HAS_PROCESS_CLOCKS
0068 #   endif
0069 #   define BOOST_CHRONO_HAS_CLOCK_STEADY
0070 #   if BOOST_PLAT_WINDOWS_DESKTOP
0071 #     define BOOST_CHRONO_HAS_THREAD_CLOCK
0072 #   endif
0073 #   define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
0074 # endif
0075
0076 # if defined( BOOST_CHRONO_MAC_API )
0077 #   define BOOST_CHRONO_HAS_PROCESS_CLOCKS
0078 #   define BOOST_CHRONO_HAS_CLOCK_STEADY
0079 #   define BOOST_CHRONO_HAS_THREAD_CLOCK
0080 #   define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
0081 # endif
0082
0083 # if defined( BOOST_CHRONO_POSIX_API )
0084 #   define BOOST_CHRONO_HAS_PROCESS_CLOCKS
0085 #   include <time.h>  //to check for CLOCK_REALTIME and CLOCK_MONOTONIC and _POSIX_THREAD_CPUTIME
0086 #   if defined(CLOCK_MONOTONIC)
0087 #      define BOOST_CHRONO_HAS_CLOCK_STEADY
0088 #   endif
0089 #   if defined(_POSIX_THREAD_CPUTIME) && !defined(BOOST_DISABLE_THREADS)
0090 #     define BOOST_CHRONO_HAS_THREAD_CLOCK
0091 #     define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
0092 #   endif
0093 #   if defined(CLOCK_THREAD_CPUTIME_ID) && !defined(BOOST_DISABLE_THREADS)
0094 #     define BOOST_CHRONO_HAS_THREAD_CLOCK
0095 #     define BOOST_CHRONO_THREAD_CLOCK_IS_STEADY true
0096 #   endif
0097 #   if defined(sun) || defined(__sun)
0098 #     undef BOOST_CHRONO_HAS_THREAD_CLOCK
0099 #     undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
0100 #   endif
0101 #   if (defined(__HP_aCC) || defined(__GNUC__)) && defined(__hpux)
0102 #     undef BOOST_CHRONO_HAS_THREAD_CLOCK
0103 #     undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
0104 #   endif
0105 #   if defined(__VXWORKS__)
0106 #     undef BOOST_CHRONO_HAS_PROCESS_CLOCKS
0107 #   endif
0108 # endif
0109
0110 #if defined(BOOST_CHRONO_THREAD_DISABLED) && defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
0111 #undef BOOST_CHRONO_HAS_THREAD_CLOCK
0112 #undef BOOST_CHRONO_THREAD_CLOCK_IS_STEADY
0113 #endif
0114
0115 // unicode support  ------------------------------//
0116
0117 #if defined(BOOST_NO_CXX11_UNICODE_LITERALS) || defined(BOOST_NO_CXX11_CHAR16_T) || defined(BOOST_NO_CXX11_CHAR32_T)
0118 //~ #define BOOST_CHRONO_HAS_UNICODE_SUPPORT
0119 #else
0120 #define BOOST_CHRONO_HAS_UNICODE_SUPPORT 1
0121 #endif
0122
0123 #ifndef BOOST_CHRONO_LIB_CONSTEXPR
0124 #if defined( BOOST_NO_CXX11_NUMERIC_LIMITS )
0125 #define BOOST_CHRONO_LIB_CONSTEXPR
0126 #elif defined(_LIBCPP_VERSION) &&  !defined(_LIBCPP_CONSTEXPR)
0127   #define BOOST_CHRONO_LIB_CONSTEXPR
0128 #else
0129   #define BOOST_CHRONO_LIB_CONSTEXPR BOOST_CONSTEXPR
0130 #endif
0131 #endif
0132
0133 #if defined( BOOST_NO_CXX11_NUMERIC_LIMITS )
0134 #  define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW throw()
0135 #else
0136 #ifdef BOOST_NO_CXX11_NOEXCEPT
0137 #  define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW throw()
0138 #else
0139 #  define BOOST_CHRONO_LIB_NOEXCEPT_OR_THROW noexcept
0140 #endif
0141 #endif
0142
0143 #if defined BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING \
0144  && defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
0145 #error "BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING && BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING defined"
0146 #endif
0147
0148 #if defined BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 \
0149  && defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
0150 #error "BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 && BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 defined"
0151 #endif
0152
0153 #if ! defined BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING \
0154  && ! defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
0155 #define BOOST_CHRONO_PROVIDE_HYBRID_ERROR_HANDLING
0156 #endif
0157
0158 #if (BOOST_CHRONO_VERSION == 2)
0159 #if ! defined BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0 \
0160  && ! defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
0161 #define BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
0162 #endif
0163 #endif
0164
0165 #ifdef BOOST_CHRONO_HEADER_ONLY
0166 #define BOOST_CHRONO_INLINE inline
0167 #define BOOST_CHRONO_STATIC inline
0168 #define BOOST_CHRONO_DECL
0169
0170 #else
0171 #define BOOST_CHRONO_INLINE
0172 #define BOOST_CHRONO_STATIC static
0173
0174 //  enable dynamic linking on Windows  ---------------------------------------//
0175
0176 // we need to import/export our code only if the user has specifically
0177 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
0178 // libraries to be dynamically linked, or BOOST_CHRONO_DYN_LINK
0179 // if they want just this one to be dynamically liked:
0180 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_CHRONO_DYN_LINK)
0181 // export if this is our own source, otherwise import:
0182 #ifdef BOOST_CHRONO_SOURCE
0183 # define BOOST_CHRONO_DECL BOOST_SYMBOL_EXPORT
0184 #else
0185 # define BOOST_CHRONO_DECL BOOST_SYMBOL_IMPORT
0186 #endif  // BOOST_CHRONO_SOURCE
0187 #endif  // DYN_LINK
0188 //
0189 // if BOOST_CHRONO_DECL isn't defined yet define it now:
0190 #ifndef BOOST_CHRONO_DECL
0191 #define BOOST_CHRONO_DECL
0192 #endif
0193
0194
0195
0196 //  enable automatic library variant selection  ------------------------------//
0197
0198 #if !defined(BOOST_CHRONO_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_CHRONO_NO_LIB)
0199 //
0200 // Set the name of our library; this will get undef'ed by auto_link.hpp
0201 // once it's done with it:
0202 //
0203 #define BOOST_LIB_NAME boost_chrono
0204 //
0205 // If we're importing code from a dll, then tell auto_link.hpp about it:
0206 //
0207 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_CHRONO_DYN_LINK)
0208 #  define BOOST_DYN_LINK
0209 #endif
0210 //
0211 // And include the header that does the work:
0212 //
0213 #include <boost/config/auto_link.hpp>
0214 #endif  // auto-linking disabled
0215 #endif // BOOST_CHRONO_HEADER_ONLY
0216
0217 #endif // BOOST_CHRONO_CONFIG_HPP
0218