diff options
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/heap/general_purpose_allocator.zig | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/std/heap/general_purpose_allocator.zig b/lib/std/heap/general_purpose_allocator.zig index 5d8de5845d..ba710059aa 100644 --- a/lib/std/heap/general_purpose_allocator.zig +++ b/lib/std/heap/general_purpose_allocator.zig @@ -433,8 +433,7 @@ pub fn GeneralPurposeAllocator(comptime config: Config) type { const bucket_slice = @ptrCast([*]align(@alignOf(BucketHeader)) u8, bucket)[0..bucket_size]; self.backing_allocator.free(bucket_slice); } else { - // TODO Set the slot data to undefined. - // Related: https://github.com/ziglang/zig/issues/4298 + @memset(bucket.page + slot_index * size_class, undefined, size_class); } } @@ -567,6 +566,9 @@ pub fn GeneralPurposeAllocator(comptime config: Config) type { const new_aligned_size = math.max(new_size, old_align); const new_size_class = math.ceilPowerOfTwoAssert(usize, new_aligned_size); if (new_size_class <= size_class) { + if (old_mem.len > new_size) { + @memset(old_mem.ptr + new_size, undefined, old_mem.len - new_size); + } return new_size; } return error.OutOfMemory; |