chromium/third_party/angle/src/common/Optional.h

//
// Copyright 2015 The ANGLE 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.
//
// Optional.h:
//   Represents a type that may be invalid, similar to std::optional.
//

#ifndef COMMON_OPTIONAL_H_
#define COMMON_OPTIONAL_H_

#include <utility>

template <class T>
struct Optional
{ … };

#endif  // COMMON_OPTIONAL_H_