Index: libcfa/src/time.hfa
===================================================================
--- libcfa/src/time.hfa	(revision 3b3491b6cedeff816eea57a2ae4762471718ac1f)
+++ libcfa/src/time.hfa	(revision 461eed2b8a088c1fd65ab1ad52dac73a115a7459)
@@ -10,6 +10,6 @@
 // Created On       : Wed Mar 14 23:18:57 2018
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Sat Aug 11 13:55:33 2018
-// Update Count     : 642
+// Last Modified On : Sat Sep 22 12:25:34 2018
+// Update Count     : 643
 //
 
@@ -23,5 +23,5 @@
 #include <sys/time.h>									// timeval
 }
-#include <time_t.hfa>										// Duration/Time types
+#include <time_t.hfa>									// Duration/Time types
 
 enum { TIMEGRAN = 1_000_000_000LL };					// nanosecond granularity, except for timeval
@@ -104,6 +104,6 @@
 
 	timeval ?=?( timeval & t, zero_t ) { return t{ 0 }; }
-	timeval ?+?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_usec + rhs.tv_usec }; }
-	timeval ?-?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_usec - rhs.tv_usec }; }
+	timeval ?+?( timeval lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_usec + rhs.tv_usec }; }
+	timeval ?-?( timeval lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_usec - rhs.tv_usec }; }
 	bool ?==?( timeval lhs, timeval rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_usec == rhs.tv_usec; }
 	bool ?!=?( timeval lhs, timeval rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_usec != rhs.tv_usec; }
@@ -119,6 +119,6 @@
 
 	timespec ?=?( timespec & t, zero_t ) { return t{ 0 }; }
-	timespec ?+?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_nsec + rhs.tv_nsec }; }
-	timespec ?-?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_nsec - rhs.tv_nsec }; }
+	timespec ?+?( timespec lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_nsec + rhs.tv_nsec }; }
+	timespec ?-?( timespec lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_nsec - rhs.tv_nsec }; }
 	bool ?==?( timespec lhs, timespec rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_nsec == rhs.tv_nsec; }
 	bool ?!=?( timespec lhs, timespec rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_nsec != rhs.tv_nsec; }