X-Git-Url: https://git.distorted.org.uk/~mdw/mLib/blobdiff_plain/8c6d948bbb87df8f1ffb49d3af1419b84ea34a0e..d2a91066c99aebac0e651b09ffd699b17f156f94:/sym.h?ds=inline

diff --git a/sym.h b/sym.h
index 3f7db08..94d43c5 100644
--- a/sym.h
+++ b/sym.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: sym.h,v 1.5 1999/05/13 22:48:37 mdw Exp $
+ * $Id: sym.h,v 1.7 1999/06/01 09:49:33 mdw Exp $
  *
  * Symbol table management
  *
@@ -30,6 +30,13 @@
 /*----- Revision history --------------------------------------------------*
  *
  * $Log: sym.h,v $
+ * Revision 1.7  1999/06/01 09:49:33  mdw
+ * Allow things to be looked up by just their caller-supplied hashes.  This
+ * actually needs to be thought through better.
+ *
+ * Revision 1.6  1999/05/26 21:08:31  mdw
+ * Rename symbols in line with newer conventions.
+ *
  * Revision 1.5  1999/05/13 22:48:37  mdw
  * Change `-ise' to `-ize' throughout.
  *
@@ -58,6 +65,10 @@
 
 #include <stddef.h>
 
+#ifndef BITS_H
+#  include "bits.h"
+#endif
+
 /*----- Type definitions --------------------------------------------------*/
 
 /* --- Symbol table --- *
@@ -86,7 +97,7 @@ typedef struct sym_table {
 
 typedef struct sym_base {
   struct sym_base *next;		/* Next symbol in hash bin */
-  unsigned long hash;			/* Hash value for symbol's name */
+  uint32 hash;				/* Hash value for symbol's name */
   union {
     char *p;				/* Pointer to name string */
     char b[SYM_BUFSZ];			/* Buffer containing a short name */
@@ -111,7 +122,7 @@ typedef struct sym_iter {
 
 /*----- External functions ------------------------------------------------*/
 
-/* --- @sym_createTable@ --- *
+/* --- @sym_create@ --- *
  *
  * Arguments:	@sym_table *t@ = symbol table to initialize
  *
@@ -121,9 +132,9 @@ typedef struct sym_iter {
  *		there isn't enough memory.
  */
 
-extern void sym_createTable(sym_table */*t*/);
+extern void sym_create(sym_table */*t*/);
 
-/* --- @sym_destroyTable@ --- *
+/* --- @sym_destroy@ --- *
  *
  * Arguments:	@sym_table *t@ = pointer to symbol table in question
  *
@@ -133,7 +144,7 @@ extern void sym_createTable(sym_table */*t*/);
  *		occupy.
  */
 
-extern void sym_destroyTable(sym_table */*t*/);
+extern void sym_destroy(sym_table */*t*/);
 
 /* --- @sym_find@ --- *
  *
@@ -151,7 +162,9 @@ extern void sym_destroyTable(sym_table */*t*/);
  *		may be given, in which case the name may contain arbitrary
  *		binary data, or it may be given as a negative number, in
  *		which case the length of the name is calculated as
- *		@strlen(n)@.
+ *		@strlen(n) + 1@.  The name pointer @n@ may also be zero; in
+ *		this case, @l@ is taken to be a raw hash, and any element
+ *		with a matching hash is taken to be the one wanted.
  *
  *		The return value is the address of a pointer to a @sym_base@
  *		block (which may have other things on the end, as above).  If
@@ -183,7 +196,7 @@ extern void *sym_find(sym_table */*t*/, const char */*n*/, long /*l*/,
 
 extern void sym_remove(sym_table */*t*/, void */*b*/);
 
-/* --- @sym_createIter@ --- *
+/* --- @sym_mkiter@ --- *
  *
  * Arguments:	@sym_iter *i@ = pointer to an iterator object
  *		@sym_table *t@ = pointer to a symbol table object
@@ -194,7 +207,7 @@ extern void sym_remove(sym_table */*t*/, void */*b*/);
  *		iterate through a symbol table.
  */
 
-extern void sym_createIter(sym_iter */*i*/, sym_table */*t*/);
+extern void sym_mkiter(sym_iter */*i*/, sym_table */*t*/);
 
 /* --- @sym_next@ --- *
  *