--- ray/src/common/fvect.h	2013/06/29 21:03:44	2.15
+++ ray/src/common/fvect.h	2014/04/11 20:27:23	2.16
@@ -1,4 +1,4 @@
-/* RCSid $Id: fvect.h,v 2.15 2013/06/29 21:03:44 greg Exp $ */
+/* RCSid $Id: fvect.h,v 2.16 2014/04/11 20:27:23 greg Exp $ */
 /*
  * Declarations for floating-point vector operations.
  */
@@ -11,9 +11,11 @@ extern "C" {
 #ifdef  SMLFLT
 #define  RREAL		float
 #define  FTINY		(1e-3)
+#define  FVFORMAT	"%f %f %f"
 #else
 #define  RREAL		double
 #define  FTINY		(1e-6)
+#define  FVFORMAT	"%lf %lf %lf"
 #endif
 #define  FHUGE		(1e10)