Added boost header

test/external/boost/date_time/time_resolution_traits.hpp

@@ -0,0 +1,144 @@
+#ifndef DATE_TIME_TIME_RESOLUTION_TRAITS_HPP
+#define DATE_TIME_TIME_RESOLUTION_TRAITS_HPP
+
+/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
+ * Use, modification and distribution is subject to the
+ * Boost Software License, Version 1.0. (See accompanying
+ * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+ * Author: Jeff Garland, Bart Garst
+ * $Date: 2009-06-06 07:25:55 -0400 (Sat, 06 Jun 2009) $
+ */
+
+
+#include <boost/cstdint.hpp>
+#include <boost/date_time/time_defs.hpp>
+#include <boost/date_time/int_adapter.hpp>
+#include <boost/date_time/compiler_config.hpp>
+
+namespace boost {
+namespace date_time {
+
+  //! Simple function to calculate absolute value of a numeric type
+  template <typename T>
+  // JDG [7/6/02 made a template],
+  // moved here from time_duration.hpp 2003-Sept-4.
+  inline T absolute_value(T x)
+  {
+    return x < 0 ? -x : x;
+  }
+
+  //! traits struct for time_resolution_traits implementation type
+  struct time_resolution_traits_bi32_impl {
+    typedef boost::int32_t int_type;
+    typedef boost::int32_t impl_type;
+    static int_type as_number(impl_type i){ return i;}
+    //! Used to determine if implemented type is int_adapter or int
+    static bool is_adapted() { return false;}
+  };
+  //! traits struct for time_resolution_traits implementation type
+  struct time_resolution_traits_adapted32_impl {
+    typedef boost::int32_t int_type;
+    typedef boost::date_time::int_adapter<boost::int32_t> impl_type;
+    static int_type as_number(impl_type i){ return i.as_number();}
+    //! Used to determine if implemented type is int_adapter or int
+    static bool is_adapted() { return true;}
+  };
+  //! traits struct for time_resolution_traits implementation type
+  struct time_resolution_traits_bi64_impl {
+    typedef boost::int64_t int_type;
+    typedef boost::int64_t impl_type;
+    static int_type as_number(impl_type i){ return i;}
+    //! Used to determine if implemented type is int_adapter or int
+    static bool is_adapted() { return false;}
+  };
+  //! traits struct for time_resolution_traits implementation type
+  struct time_resolution_traits_adapted64_impl {
+    typedef boost::int64_t int_type;
+    typedef boost::date_time::int_adapter<boost::int64_t> impl_type;
+    static int_type as_number(impl_type i){ return i.as_number();}
+    //! Used to determine if implemented type is int_adapter or int
+    static bool is_adapted() { return true;}
+  };
+
+  template<typename frac_sec_type,
+           time_resolutions res,
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+           boost::int64_t resolution_adjust,
+#else
+           typename frac_sec_type::int_type resolution_adjust,
+#endif
+           unsigned short frac_digits,
+           typename v_type = boost::int32_t >
+  class time_resolution_traits {
+  public:
+    typedef typename frac_sec_type::int_type fractional_seconds_type;
+    typedef typename frac_sec_type::int_type tick_type;
+    typedef typename frac_sec_type::impl_type impl_type;
+    typedef v_type  day_type;
+    typedef v_type  hour_type;
+    typedef v_type  min_type;
+    typedef v_type  sec_type;
+
+    // bring in function from frac_sec_type traits structs
+    static fractional_seconds_type as_number(impl_type i)
+    {
+      return frac_sec_type::as_number(i);
+    }
+    static bool is_adapted()
+    {
+      return frac_sec_type::is_adapted();
+    }
+
+    //Would like this to be frac_sec_type, but some compilers complain
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+    BOOST_STATIC_CONSTANT(boost::int64_t, ticks_per_second = resolution_adjust);
+#else
+    BOOST_STATIC_CONSTANT(fractional_seconds_type, ticks_per_second = resolution_adjust);
+#endif
+
+    static time_resolutions resolution()
+    {
+      return res;
+    }
+    static unsigned short num_fractional_digits()
+    {
+      return frac_digits;
+    }
+    static fractional_seconds_type res_adjust()
+    {
+      return resolution_adjust;
+    }
+    //! Any negative argument results in a negative tick_count
+    static tick_type to_tick_count(hour_type hours,
+                                   min_type  minutes,
+                                   sec_type  seconds,
+                                   fractional_seconds_type  fs)
+    {
+      if(hours < 0 || minutes < 0 || seconds < 0 || fs < 0)
+      {
+        hours = absolute_value(hours);
+        minutes = absolute_value(minutes);
+        seconds = absolute_value(seconds);
+        fs = absolute_value(fs);
+        return (((((fractional_seconds_type(hours)*3600)
+                   + (fractional_seconds_type(minutes)*60)
+                   + seconds)*res_adjust()) + fs) * -1);
+      }
+
+      return (((fractional_seconds_type(hours)*3600)
+               + (fractional_seconds_type(minutes)*60)
+               + seconds)*res_adjust()) + fs;
+    }
+
+  };
+
+  typedef time_resolution_traits<time_resolution_traits_adapted32_impl, milli, 1000, 3 > milli_res;
+  typedef time_resolution_traits<time_resolution_traits_adapted64_impl, micro, 1000000, 6 > micro_res;
+  typedef time_resolution_traits<time_resolution_traits_adapted64_impl, nano,  1000000000, 9 > nano_res;
+
+
+} } //namespace date_time
+
+
+
+#endif