Commit c8d721aa42
Changed files (1)
lib
lib/std/array_hash_map.zig
@@ -687,8 +687,9 @@ pub fn ArrayHashMapUnmanaged(
/// Removes the last inserted `Entry` in the hash map and returns it.
pub fn pop(self: *Self) Entry {
- const top = self.entries.pop();
+ const top = self.entries.items[self.entries.items.len - 1];
_ = self.removeWithHash(top.key, top.hash, .index_only);
+ self.entries.items.len -= 1;
return top;
}
@@ -1258,19 +1259,18 @@ test "pop" {
var map = AutoArrayHashMap(i32, i32).init(std.testing.allocator);
defer map.deinit();
- testing.expect((try map.fetchPut(1, 11)) == null);
- testing.expect((try map.fetchPut(2, 22)) == null);
- testing.expect((try map.fetchPut(3, 33)) == null);
- testing.expect((try map.fetchPut(4, 44)) == null);
+ // Insert just enough entries so that the map expands. Afterwards,
+ // pop all entries out of the map.
- const pop1 = map.pop();
- testing.expect(pop1.key == 4 and pop1.value == 44);
- const pop2 = map.pop();
- testing.expect(pop2.key == 3 and pop2.value == 33);
- const pop3 = map.pop();
- testing.expect(pop3.key == 2 and pop3.value == 22);
- const pop4 = map.pop();
- testing.expect(pop4.key == 1 and pop4.value == 11);
+ var i: i32 = 0;
+ while (i < 9) : (i += 1) {
+ testing.expect((try map.fetchPut(i, i)) == null);
+ }
+
+ while (i > 0) : (i -= 1) {
+ const pop = map.pop();
+ testing.expect(pop.key == i - 1 and pop.value == i - 1);
+ }
}
test "reIndex" {