hashmap: add helper to test if iterator is still at beginning

2021-05-25 15:47:09 +02:00
parent 13eeefe1a8
commit 641d3761d4
1 changed files with 1 additions and 0 deletions
@@ -51,6 +51,7 @@ typedef struct {

 #define _IDX_ITERATOR_FIRST (UINT_MAX - 1)
 #define ITERATOR_FIRST ((Iterator) { .idx = _IDX_ITERATOR_FIRST, .next_key = NULL })
+#define ITERATOR_IS_FIRST(i) ((i).idx == _IDX_ITERATOR_FIRST)

 /* Macros for type checking */
 #define PTR_COMPATIBLE_WITH_HASHMAP_BASE(h) \