--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/date_time/gregorian_calendar.hpp	Mon May 10 19:54:49 2010 +0100
@@ -0,0 +1,70 @@
+#ifndef DATE_TIME_GREGORIAN_CALENDAR_HPP__
+#define DATE_TIME_GREGORIAN_CALENDAR_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 
+ * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $
+ */
+
+
+namespace boost {
+namespace date_time {
+
+
+  //! An implementation of the Gregorian calendar
+  /*! This is a parameterized implementation of a proleptic Gregorian Calendar that
+      can be used in the creation of date systems or just to perform calculations.
+      All the methods of this class are static functions, so the intent is to
+      never create instances of this class.
+    @param ymd_type_ Struct type representing the year, month, day.  The ymd_type must
+           define a of types for the year, month, and day.  These types need to be
+           arithmetic types.
+    @param date_int_type_ Underlying type for the date count.  Must be an arithmetic type.
+  */
+  template<typename ymd_type_, typename date_int_type_>
+  class gregorian_calendar_base {
+  public:
+    //! define a type a date split into components 
+    typedef ymd_type_  ymd_type;
+    //! define a type for representing months
+    typedef typename ymd_type::month_type  month_type;
+    //! define a type for representing days
+    typedef typename ymd_type::day_type  day_type;
+    //! Type to hold a stand alone year value (eg: 2002)
+    typedef typename ymd_type::year_type  year_type;
+    //! Define the integer type to use for internal calculations
+    typedef date_int_type_ date_int_type;
+
+
+    static unsigned short day_of_week(const ymd_type& ymd);
+    static int week_number(const ymd_type&ymd);
+    //static unsigned short day_of_year(date_int_type);
+    static date_int_type day_number(const ymd_type& ymd);
+    static date_int_type julian_day_number(const ymd_type& ymd);
+    static long modjulian_day_number(const ymd_type& ymd);
+    static ymd_type from_day_number(date_int_type);
+    static ymd_type from_julian_day_number(date_int_type);
+    static ymd_type from_modjulian_day_number(long);
+    static bool is_leap_year(year_type);
+    static unsigned short end_of_month_day(year_type y, month_type m);
+    static ymd_type epoch();
+    static unsigned short days_in_week();
+
+  };
+
+
+
+} } //namespace
+  
+#ifndef NO_BOOST_DATE_TIME_INLINE
+#include "boost/date_time/gregorian_calendar.ipp"
+#endif
+
+
+
+#endif
+  
+