chromium/base/containers/heap_array.h

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_CONTAINERS_HEAP_ARRAY_H_
#define BASE_CONTAINERS_HEAP_ARRAY_H_

#include <stddef.h>

#include <memory>
#include <type_traits>
#include <utility>

#include "base/compiler_specific.h"
#include "base/containers/span.h"
#include "third_party/abseil-cpp/absl/base/attributes.h"

namespace base {

// HeapArray<T> is a replacement for std::unique_ptr<T[]> that keeps track
// of its size. It is intended to provide easy conversion to span<T> for most
// usage, but it also provides bounds-checked indexing.
//
// By default, elements in the array are either value-initialized (i.e. zeroed
// for primitive types) when the array is created using the WithSize()
// static method, or uninitialized when the array is created via the Uninit()
// static method.
template <typename T, typename Deleter = void>
class TRIVIAL_ABI GSL_OWNER HeapArray { … };

}  // namespace base

#endif  // BASE_CONTAINERS_HEAP_ARRAY_H_