* symrec.pxi: Implement iterators.

* symrec.h (yasm_symtab_first, yasm_symtab_next, yasm_symtab_iter_value):
Supporting functions.
* symrec.c (yasm_symtab_first, yasm_symtab_next, yasm_symtab_iter_value):
Implement by passing through to...
* hamt.h (HAMT_first, HAMT_next, HAMTEntry_get_data): New.
* hamt.c (HAMT_first, HAMT_next, HAMTEntry_get_data): Implement.

svn path=/trunk/yasm/; revision=1495

1 files changed, 20 insertions, 0 deletions

diff --git a/libyasm/hamt.h b/libyasm/hamt.h
index 78d380e7..865844ca 100644
--- a/libyasm/hamt.h
+++ b/libyasm/hamt.h
@@ -36,6 +36,8 @@
 
 /** Hash array mapped trie data structure (opaque type). */
 typedef struct HAMT HAMT;
+/** Hash array mapped trie entry (opaque type). */
+typedef struct HAMTEntry HAMTEntry;
 
 /** Create new, empty, HAMT.  error_func() is called when an internal error is
  * encountered--it should NOT return to the calling function.
@@ -91,4 +93,22 @@ int HAMT_traverse(HAMT *hamt, /*@null@*/ void *d,
 		  int (*func) (/*@dependent@*/ /*@null@*/ void *node,
 			       /*@null@*/ void *d));
 
+/** Get the first entry in a HAMT.
+ * \param hamt		Hash array mapped trie
+ * \return First entry in HAMT, or NULL if HAMT is empty.
+ */
+const HAMTEntry *HAMT_first(const HAMT *hamt);
+
+/** Get the next entry in a HAMT.
+ * \param prev		Previous entry in HAMT
+ * \return Next entry in HAMT, or NULL if no more entries.
+ */
+/*@null@*/ const HAMTEntry *HAMT_next(const HAMTEntry *prev);
+
+/** Get the corresponding data for a HAMT entry.
+ * \param entry		HAMT entry (as returned by HAMT_first() and HAMT_next())
+ * \return Corresponding data item.
+ */
+void *HAMTEntry_get_data(const HAMTEntry *entry);
+
 #endif