--- ray/src/common/lookup.h	1998/09/02 18:42:11	2.5
+++ ray/src/common/lookup.h	2004/05/25 22:04:13	2.14
@@ -1,11 +1,18 @@
-/* Copyright (c) 1998 Silicon Graphics, Inc. */
-
-/* SCCSid "$SunId$ SGI" */
-
+/* RCSid $Id: lookup.h,v 2.14 2004/05/25 22:04:13 greg Exp $ */
 /*
  * Header file for general associative table lookup routines
  */
+#ifndef _RAD_LOOKUP_H_
+#define _RAD_LOOKUP_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void lut_free_t(void *p);
+typedef unsigned long lut_hashf_t(const void *);
+typedef int lut_keycmpf_t(const void *, const void *);
+
 typedef struct {
 	char	*key;			/* key name */
 	unsigned long	hval;		/* key hash value (for efficiency) */
@@ -13,18 +20,15 @@ typedef struct {
 } LUENT;
 
 typedef struct {
-	unsigned long	(*hashf)();	/* key hash function */
-	int	(*keycmp)();		/* key comparison function */
-	void	(*freek)();		/* free a key */
-	void	(*freed)();		/* free the data */
+	lut_hashf_t *hashf;	/* key hash function */
+	lut_keycmpf_t *keycmp;	/* key comparison function */
+	lut_free_t *freek;		/* free a key */
+	lut_free_t *freed;		/* free the data */
 	int	tsiz;			/* current table size */
 	LUENT	*tabl;			/* table, if allocated */
 	int	ndel;			/* number of deleted entries */
 } LUTAB;
 
-#undef strcmp
-#define LU_SINIT(fk,fd)		{lu_shash,strcmp,(void (*)())(fk),\
-				(void (*)())(fd),0,NULL,0}
 
 /*
  * The lu_init routine is called to initialize a table.  The number of
@@ -73,11 +77,20 @@ typedef struct {
  * allocated table itself.
  */
 
-extern int	lu_init();
-extern LUENT	*lu_find();
-extern void	lu_delete();
-extern int	lu_doall();
-extern void	lu_done();
-extern unsigned long	lu_shash();
+typedef int lut_doallf_t(const LUENT *e, void *p);
 
-extern int	strcmp();
+extern lut_keycmpf_t lu_strcmp;
+extern int	lu_init(LUTAB *tbl, int nel);
+extern unsigned long	lu_shash(const void *s);
+extern LUENT	*lu_find(LUTAB *tbl, const char *key);
+extern void	lu_delete(LUTAB *tbl, const char *key);
+extern int	lu_doall(const LUTAB *tbl, lut_doallf_t *f, void *p);
+extern void	lu_done(LUTAB *tbl);
+
+#define LU_SINIT(fk,fd) {lu_shash,lu_strcmp,fk,fd,0,NULL,0}
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_LOOKUP_H_ */
+