--- ray/src/common/calcomp.h	1989/05/18 08:33:47	1.3
+++ ray/src/common/calcomp.h	1991/04/23 15:44:37	1.5
@@ -15,11 +15,12 @@
 #define  ARG		6
 #define  TICK		7
 #define  SYM		8
-				/* also: '+', '-', '*', '/', '^', '=' */
+				/* also: '+', '-', '*', '/', '^', '=', ':' */
 
 typedef struct {
     char  *fname;		/* function name */
-    int  nargs;			/* # of required arguments */
+    short  nargs;		/* # of required arguments */
+    short  atyp;		/* assignment type (':' or '=') */
     double  (*f)();		/* pointer to function */
 }  LIBR;		/* a library function */