Index: process_cpu_clocks.hpp
===================================================================
--- process_cpu_clocks.hpp	(revision 77539)
+++ process_cpu_clocks.hpp	(working copy)
@@ -34,9 +34,13 @@
     {
       BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
     }
+    typedef ratio_divide<giga, ratio<CLOCKS_PER_SEC>>::type R;
     return time_point(
-      duration(c*(1000000000l/CLOCKS_PER_SEC))
+      duration(static_cast<rep>(c)*R::num/R::den)
     );
+//    return time_point(
+//      duration(c*(1000000000l/CLOCKS_PER_SEC))
+//    );
 }
 
 #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
@@ -56,9 +60,13 @@
     {
       ec.clear();
     }
+    typedef ratio_divide<giga, ratio<CLOCKS_PER_SEC>>::type R;
     return time_point(
-      duration(c*(1000000000l/CLOCKS_PER_SEC))
+      duration(static_cast<rep>(c)*R::num/R::den)
     );
+//    return time_point(
+//      duration(c*(1000000000l/CLOCKS_PER_SEC))
+//    );
 }
 #endif