整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/date_time/posix_time/posix_time_duration.hpp
+++ b/include/boost/date_time/posix_time/posix_time_duration.hpp
@@ -0,0 +1,91 @@
+#ifndef POSIX_TIME_DURATION_HPP___
+#define POSIX_TIME_DURATION_HPP___
+
+/* Copyright (c) 2002,2003, 2020 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
+ * $Date$
+ */
+
+#include <boost/core/enable_if.hpp>
+#include <boost/date_time/compiler_config.hpp>
+#include <boost/date_time/posix_time/posix_time_config.hpp>
+#include <boost/numeric/conversion/cast.hpp>
+#include <boost/type_traits/is_integral.hpp>
+
+namespace boost {
+namespace posix_time {
+
+  //! Allows expression of durations as an hour count
+  //! The argument must be an integral type
+  /*! \ingroup time_basics
+   */
+  class BOOST_SYMBOL_VISIBLE hours : public time_duration
+  {
+  public:
+      template <typename T>
+      BOOST_CXX14_CONSTEXPR explicit hours(T const& h,
+          typename boost::enable_if<boost::is_integral<T>, void>::type* = BOOST_DATE_TIME_NULLPTR) :
+      time_duration(numeric_cast<hour_type>(h), 0, 0)
+    {}
+  };
+
+  //! Allows expression of durations as a minute count
+  //! The argument must be an integral type
+  /*! \ingroup time_basics
+   */
+  class BOOST_SYMBOL_VISIBLE minutes : public time_duration
+  {
+  public:
+      template <typename T>
+      BOOST_CXX14_CONSTEXPR explicit minutes(T const& m,
+          typename boost::enable_if<boost::is_integral<T>, void>::type* = BOOST_DATE_TIME_NULLPTR) :
+      time_duration(0, numeric_cast<min_type>(m),0)
+    {}
+  };
+
+  //! Allows expression of durations as a seconds count
+  //! The argument must be an integral type
+  /*! \ingroup time_basics
+   */
+  class BOOST_SYMBOL_VISIBLE seconds : public time_duration
+  {
+  public:
+      template <typename T>
+      BOOST_CXX14_CONSTEXPR explicit seconds(T const& s,
+          typename boost::enable_if<boost::is_integral<T>, void>::type* = BOOST_DATE_TIME_NULLPTR) :
+      time_duration(0,0, numeric_cast<sec_type>(s))
+    {}
+  };
+
+
+  //! Allows expression of durations as milli seconds
+  /*! \ingroup time_basics
+   */
+  typedef date_time::subsecond_duration<time_duration,1000> millisec;
+  typedef date_time::subsecond_duration<time_duration,1000> milliseconds;
+
+  //! Allows expression of durations as micro seconds
+  /*! \ingroup time_basics
+   */
+  typedef date_time::subsecond_duration<time_duration,1000000> microsec;
+  typedef date_time::subsecond_duration<time_duration,1000000> microseconds;
+
+  //This is probably not needed anymore...
+#if defined(BOOST_DATE_TIME_HAS_NANOSECONDS)
+
+  //! Allows expression of durations as nano seconds
+  /*! \ingroup time_basics
+   */
+  typedef date_time::subsecond_duration<time_duration,1000000000> nanosec;
+  typedef date_time::subsecond_duration<time_duration,1000000000> nanoseconds;
+
+#endif
+
+} }//namespace posix_time
+
+
+#endif
+