ceph/src/boost/libs/date_time/include/boost/date_time/compiler_config.hpp

   1 #ifndef DATE_TIME_COMPILER_CONFIG_HPP___
   2 #define DATE_TIME_COMPILER_CONFIG_HPP___
   3
   4 /* Copyright (c) 2002-2004 CrystalClear Software, Inc.
   5  * Subject to the Boost Software License, Version 1.0. (See accompanying
   6  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
   7  * Author: Jeff Garland, Bart Garst
   8  * $Date$
   9  */
  10
  11 #include <cstdlib>
  12 #include <boost/config.hpp>
  13 #include <boost/detail/workaround.hpp>
  14
  15 // With boost release 1.33, date_time will be using a different,
  16 // more flexible, IO system. This new system is not compatible with
  17 // old compilers. The original date_time IO system remains for those
  18 // compilers. They must define this macro to use the legacy IO.
  19 //     (defined(__BORLANDC__) && (__BORLANDC__ <= 0x0581) ) )   &&
  20  #if(  BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) ) \
  21     || BOOST_WORKAROUND( __GNUC__, < 3)                         \
  22     || (BOOST_WORKAROUND( _MSC_VER, <= 1300) )                  \
  23     )                                                           \
  24     && !defined(USE_DATE_TIME_PRE_1_33_FACET_IO)
  25 # define USE_DATE_TIME_PRE_1_33_FACET_IO
  26 #endif
  27
  28
  29 // This file performs some local compiler configurations
  30
  31 #include <boost/date_time/locale_config.hpp> //set up locale configurations
  32
  33 //Set up a configuration parameter for platforms that have
  34 //GetTimeOfDay
  35 #if defined(BOOST_HAS_GETTIMEOFDAY) || defined(BOOST_HAS_FTIME)
  36 #define BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK
  37 #endif
  38
  39 // To Force no default constructors for date & ptime, un-comment following
  40 //#define DATE_TIME_NO_DEFAULT_CONSTRUCTOR
  41
  42 // Include extensions to date_duration - comment out to remove this feature
  43 #define BOOST_DATE_TIME_OPTIONAL_GREGORIAN_TYPES
  44 // these extensions are known to cause problems with gcc295
  45 #if defined(__GNUC__) && (__GNUC__ < 3)
  46 #undef BOOST_DATE_TIME_OPTIONAL_GREGORIAN_TYPES
  47 #endif
  48
  49 #if (defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION) || BOOST_WORKAROUND( __BORLANDC__,  BOOST_TESTED_AT(0x581) ) )
  50 #define BOOST_DATE_TIME_NO_MEMBER_INIT
  51 #endif
  52
  53 // include these types before we try to re-define them
  54 #include <boost/cstdint.hpp>
  55
  56 //Define INT64_C for compilers that don't have it
  57 #if (!defined(INT64_C))
  58 #define INT64_C(value)  int64_t(value)
  59 #endif
  60
  61
  62 /* Workaround for Borland iterator error. Error was "Cannot convert 'istream *' to 'wistream *' in function istream_iterator<>::istream_iterator() */
  63 #if defined(__BORLANDC__) && defined(BOOST_BCB_WITH_RW_LIB)
  64 #define BOOST_DATE_TIME_NO_WISTREAM_ITERATOR
  65 #endif
  66
  67
  68 // Borland v5.64 does not have the following in std namespace; v5.5.1 does
  69 #if defined(__BORLANDC__) && defined(BOOST_BCB_WITH_STLPORT)
  70 #include <locale>
  71 namespace std {
  72   using stlport::tolower;
  73   using stlport::ctype;
  74   using stlport::use_facet;
  75 }
  76 #endif
  77
  78 // workaround for errors associated with output for date classes
  79 // modifications and input streaming for time classes.
  80 // Compilers affected are:
  81 // gcc295, msvc (neither with STLPort), any borland
  82 //
  83 #if (((defined(__GNUC__) && (__GNUC__ < 3)) || \
  84       (defined(_MSC_VER) && (_MSC_VER < 1300)) ) && \
  85       !defined(_STLP_OWN_IOSTREAMS) ) || \
  86       BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) )
  87 #define BOOST_DATE_TIME_INCLUDE_LIMITED_HEADERS
  88 #endif
  89
  90 // The macro marks up places where compiler complains for missing return statement or
  91 // uninitialized variables after calling to boost::throw_exception.
  92 // BOOST_UNREACHABLE_RETURN doesn't work since even compilers that support
  93 // unreachable statements detection emit such warnings.
  94 #if defined(_MSC_VER)
  95 // Use special MSVC extension to markup unreachable code
  96 #  define BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(x) __assume(false)
  97 #elif !defined(BOOST_NO_UNREACHABLE_RETURN_DETECTION)
  98 // Call to a non-returning function should suppress the warning
  99 #  if defined(BOOST_NO_STDC_NAMESPACE)
 100 namespace std {
 101     using ::abort;
 102 }
 103 #  endif // defined(BOOST_NO_STDC_NAMESPACE)
 104 #  define BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(x) std::abort()
 105 #else
 106 // For other poor compilers the specified expression is compiled. Usually, this would be a return statement.
 107 #  define BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(x) x
 108 #endif
 109
 110 /* The following handles the definition of the necessary macros
 111  * for dll building on Win32 platforms.
 112  *
 113  * For code that will be placed in the date_time .dll,
 114  * it must be properly prefixed with BOOST_DATE_TIME_DECL.
 115  * The corresponding .cpp file must have BOOST_DATE_TIME_SOURCE
 116  * defined before including its header. For examples see:
 117  * greg_month.hpp & greg_month.cpp
 118  *
 119  */
 120
 121 // we need to import/export our code only if the user has specifically
 122 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
 123 // libraries to be dynamically linked, or BOOST_DATE_TIME_DYN_LINK
 124 // if they want just this one to be dynamically liked:
 125 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_DATE_TIME_DYN_LINK)
 126     // export if this is our own source, otherwise import:
 127 #   ifdef BOOST_DATE_TIME_SOURCE
 128 #     define BOOST_DATE_TIME_DECL BOOST_SYMBOL_EXPORT
 129 #   else
 130 #     define BOOST_DATE_TIME_DECL BOOST_SYMBOL_IMPORT
 131 #   endif  // BOOST_DATE_TIME_SOURCE
 132 #endif  // DYN_LINK
 133 //
 134 // if BOOST_WHATEVER_DECL isn't defined yet define it now:
 135 #ifndef BOOST_DATE_TIME_DECL
 136 #  define BOOST_DATE_TIME_DECL
 137 #endif
 138
 139 //
 140 // Automatically link to the correct build variant where possible.
 141 //
 142 #if !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_DATE_TIME_NO_LIB) && !defined(BOOST_DATE_TIME_SOURCE)
 143 //
 144 // Set the name of our library, this will get undef'ed by auto_link.hpp
 145 // once it's done with it:
 146 //
 147 #define BOOST_LIB_NAME boost_date_time
 148 //
 149 // If we're importing code from a dll, then tell auto_link.hpp about it:
 150 //
 151 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_DATE_TIME_DYN_LINK)
 152 #  define BOOST_DYN_LINK
 153 #endif
 154 //
 155 // And include the header that does the work:
 156 //
 157 #include <boost/config/auto_link.hpp>
 158 #endif  // auto-linking disabled
 159
 160 #if defined(BOOST_HAS_THREADS)
 161 #  if defined(_MSC_VER) || defined(__MWERKS__) || defined(__MINGW32__) ||  defined(__BORLANDC__)
 162      //no reentrant posix functions (eg: localtime_r)
 163 #  elif (!defined(__hpux) || (defined(__hpux) && defined(_REENTRANT)))
 164 #   define BOOST_DATE_TIME_HAS_REENTRANT_STD_FUNCTIONS
 165 #  endif
 166 #endif
 167
 168
 169 #endif