authorgravatar for mpoliwczak34@gmail.comMateusz Poliwczak <mpoliwczak34@gmail.com> 2025-11-06 07:52:01+01:00
committergravatar for squeek502@hotmail.comRyan Liptak <squeek502@hotmail.com> 2025-11-06 05:30:41-08:00
logb2895f356fa6203d0f3f1476c4e8fb9cf5b6d860
treeddb7b67672c67eef02ee7f482ac0291382ea780a
parente6396025696abdce5ac9d6d683954df8dc7fdae6

std.ArrayList: actaully memset to undefined in shrinkRetainingCapacity and clearRetainingCapacity

See #25810

1 files changed, 5 insertions(+), 2 deletions(-)

lib/std/array_list.zig+5-2
......@@ -380,15 +380,15 @@ pub fn AlignedManaged(comptime T: type, comptime alignment: ?mem.Alignment) type
380380 /// Asserts that the new length is less than or equal to the previous length.
381381 pub fn shrinkRetainingCapacity(self: *Self, new_len: usize) void {
382382 assert(new_len <= self.items.len);
383 self.items.len = new_len;
384383 @memset(self.items[new_len..], undefined);
384 self.items.len = new_len;
385385 }
386386
387387 /// Reduce length to 0.
388388 /// Invalidates all element pointers.
389389 pub fn clearRetainingCapacity(self: *Self) void {
390 self.items.len = 0;
391390 @memset(self.items, undefined);
391 self.items.len = 0;
392392 }
393393
394394 /// Invalidates all element pointers.
......@@ -1141,11 +1141,14 @@ pub fn Aligned(comptime T: type, comptime alignment: ?mem.Alignment) type {
11411141 /// Asserts that the new length is less than or equal to the previous length.
11421142 pub fn shrinkRetainingCapacity(self: *Self, new_len: usize) void {
11431143 assert(new_len <= self.items.len);
1144 @memset(self.items[new_len..], undefined);
11441145 self.items.len = new_len;
11451146 }
11461147
1148 /// Reduce length to 0.
11471149 /// Invalidates all element pointers.
11481150 pub fn clearRetainingCapacity(self: *Self) void {
1151 @memset(self.items, undefined);
11491152 self.items.len = 0;
11501153 }
11511154