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/*
* Copyright 2017 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_ZERO_MEMORY_H_
#define RTC_BASE_ZERO_MEMORY_H_
#include <stddef.h>
#include <type_traits>
#include "api/array_view.h"
namespace webrtc {
// Fill memory with zeros in a way that the compiler doesn't optimize it away
// even if the pointer is not used afterwards.
void ExplicitZeroMemory(void* ptr, size_t len);
template <typename T,
typename std::enable_if<!std::is_const<T>::value &&
std::is_trivial<T>::value>::type* = nullptr>
void ExplicitZeroMemory(ArrayView<T> a) {
ExplicitZeroMemory(a.data(), a.size());
}
} // namespace webrtc
// Re-export symbols from the webrtc namespace for backwards compatibility.
// TODO(bugs.webrtc.org/4222596): Remove once all references are updated.
#ifdef WEBRTC_ALLOW_DEPRECATED_NAMESPACES
namespace rtc {
using ::webrtc::ExplicitZeroMemory;
} // namespace rtc
#endif // WEBRTC_ALLOW_DEPRECATED_NAMESPACES
#endif // RTC_BASE_ZERO_MEMORY_H_
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