[Boost-commit] svn:boost r40039 - in sandbox/committee/LWG/ref_impl: . test

From: jeff_at_[hidden]
Date: 2007-10-14 22:22:39

Author: az_sw_dude
Date: 2007-10-14 22:22:38 EDT (Sun, 14 Oct 2007)
New Revision: 40039
URL: http://svn.boost.org/trac/boost/changeset/40039

Log:
add implementation and tests for to_timeval conversion function
Text files modified: 
   sandbox/committee/LWG/ref_impl/date_time              |    23 ++++++++++++++++++++++-                 
   sandbox/committee/LWG/ref_impl/test/test_datetime.cpp |    29 ++++++++++++++++++++++++++++-           
   2 files changed, 50 insertions(+), 2 deletions(-)

Modified: sandbox/committee/LWG/ref_impl/date_time
==============================================================================
--- sandbox/committee/LWG/ref_impl/date_time	(original)
+++ sandbox/committee/LWG/ref_impl/date_time	2007-10-14 22:22:38 EDT (Sun, 14 Oct 2007)
@@ -382,7 +382,28 @@
    return system_time(time_since_epoch);
  }
 
+} //namespace std
+
+
+
+
+ namespace detail {
+   
+   template<typename time_duration_type>
+   inline
+   timeval to_timeval(const time_duration_type& td) {
+     std::nanoseconds ns(td);
+     int64_t count = ns.get_count();
+     int64_t sec_count = count/int64_t(1000000000);
+     //remainder after sec -- adjusted from nano back to micro
+     count = (count%int64_t(1000000000))/int64_t(1000); 
+     timeval tv;
+     tv.tv_sec = sec_count;
+     tv.tv_usec = count;
+     
+     return tv;
+   }
+ }
 
-}
 
 #endif

Modified: sandbox/committee/LWG/ref_impl/test/test_datetime.cpp
==============================================================================
--- sandbox/committee/LWG/ref_impl/test/test_datetime.cpp	(original)
+++ sandbox/committee/LWG/ref_impl/test/test_datetime.cpp	2007-10-14 22:22:38 EDT (Sun, 14 Oct 2007)
@@ -57,6 +57,32 @@
 
 };
 
+void check_native_conversion()
+{
+  {
+    std::nanoseconds ns(0);
+    timeval tv = detail::to_timeval(ns);
+    std::cout << "Timeval is : " << tv.tv_sec << " " << tv.tv_usec << std::endl;
+  }
+  {
+    std::seconds s(1);
+    timeval tv = detail::to_timeval(s);
+    std::cout << "Timeval is : " << tv.tv_sec << " " << tv.tv_usec << std::endl;
+  }
+  {
+    std::microseconds ms(1);
+    timeval tv = detail::to_timeval(ms);
+    std::cout << "Timeval is : " << tv.tv_sec << " " << tv.tv_usec << std::endl;
+  }
+  {
+    std::microseconds ms(1);
+    ms += seconds(1);
+    timeval tv = detail::to_timeval(ms);
+    std::cout << "Timeval is : " << tv.tv_sec << " " << tv.tv_usec << std::endl;
+  }
+
+}
+
 
 
 int
@@ -104,7 +130,8 @@
 
 
   do_conversions();
-  
+  check_native_conversion();
+
   return 0;
 
 }