--- ray/src/common/vars.h	1996/01/05 14:42:13	2.2
+++ ray/src/common/vars.h	2023/06/09 22:52:47	2.9
@@ -1,17 +1,19 @@
-/* Copyright (c) 1995 Regents of the University of California */
-
-/* SCCSid "$SunId$ LBL" */
-
+/* RCSid $Id: vars.h,v 2.9 2023/06/09 22:52:47 greg Exp $ */
 /*
  *  Header for programs that load variable files.
  */
+#ifndef _RAD_VARS_H_
+#define _RAD_VARS_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-typedef struct {
-	char	*name;		/* variable name */
+typedef struct variable_s {
+	const char	*name;	/* variable name */
 	short	nick;		/* # characters required for nickname */
 	short	nass;		/* # assignments made */
 	char	*value;		/* assigned value(s) */
-	int	(*fixval)();	/* assignment checking function */
+	void	(*fixval)(struct variable_s *);	/* assignment checking function */
 } VARIABLE;		/* a variable-value pair */
 
 /**** The following variables should be declared by calling program ****/
@@ -26,12 +28,6 @@ extern int	nowarn;		/* global boolean to turn warnings
 
 /**** The rest is declared in loadvars.c ****/
 
-extern int	onevalue(), catvalues(), boolvalue(),
-		qualvalue(), fltvalue(), intvalue();
-
-extern VARIABLE	*matchvar();
-extern char	*nvalue();
-
 #define UPPER(c)	((c)&~0x20)	/* ASCII trick */
 
 #define vnam(vc)	(vv[vc].name)
@@ -46,3 +42,23 @@ extern char	*nvalue();
 #define HIGH		'H'
 #define MEDIUM		'M'
 #define LOW		'L'
+
+
+extern void	loadvars(const char *rfname);
+extern int	setvariable(const char *ass, VARIABLE *(*mv)(const char*));
+extern VARIABLE	*matchvar(const char *nam);
+extern char	*nvalue(int vn, int n);
+extern void	checkvalues(void);
+extern void	onevalue(VARIABLE *vp);
+extern void	catvalues(VARIABLE *vp);
+extern int	badmatch(char *tv, char *cv);
+extern void	boolvalue(VARIABLE *vp);
+extern void	qualvalue(VARIABLE *vp);
+extern void	intvalue(VARIABLE *vp);
+extern void	fltvalue(VARIABLE *vp);
+extern void	printvars(FILE *fp);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_VARS_H_ */