Index: tester.c
===================================================================
--- tester.c	(revision 7820)
+++ tester.c	(revision 7821)
@@ -54,6 +54,10 @@
 			PCB_PRINTF("m+=%m+%mS m\n", PCB_UNIT_ALLOW_M, c[n]);
 			PCB_PRINTF("m+=%m+%mS mm or m\n", PCB_UNIT_ALLOW_MM | PCB_UNIT_ALLOW_M, c[n]);
 		}
+#ifndef SPEED
+			printf("---------------\n");
+#endif
+		PCB_PRINTF("mf=%.08mf\n", (double)1.2345);
 	}
 
 #ifdef SPEED
Index: tester.ref
===================================================================
--- tester.ref	(revision 7820)
+++ tester.ref	(revision 7821)
@@ -158,3 +158,5 @@
 m+=1073.7418 mm
 m+=1.07374 m
 m+=1073.7418 mm or m
+---------------
+mf=1.2345