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- // Copyright 2022 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_TAG_TYPES_H_
- #define BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_TAG_TYPES_H_
- #include <cstdint>
- // This header defines the types for MTECheckedPtr. Canonical
- // documentation available at `//base/memory/raw_ptr_mtecheckedptr.md`.
- namespace partition_alloc {
- // Use 8 bits for the partition tag. This is the "lower" byte of the
- // two top bytes in a 64-bit pointer. The "upper" byte of the same
- // is reserved for true ARM MTE.
- //
- // MTECheckedPtr is not yet compatible with ARM MTE, but it is a
- // distant goal to have them coexist.
- using PartitionTag = uint8_t;
- } // namespace partition_alloc
- #endif // BASE_ALLOCATOR_PARTITION_ALLOCATOR_PARTITION_TAG_TYPES_H_
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