// Copyright 2022 The Abseil Authors.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

// -----------------------------------------------------------------------------

// File: log/internal/voidify.h

// -----------------------------------------------------------------------------

//

// This class is used to explicitly ignore values in the conditional logging

// macros. This avoids compiler warnings like "value computed is not used" and

// "statement has no effect".

#ifndef ABSL_LOG_INTERNAL_VOIDIFY_H_

#define ABSL_LOG_INTERNAL_VOIDIFY_H_

#include "absl/base/config.h"

namespace absl {

ABSL_NAMESPACE_BEGIN

namespace log_internal {

class Voidify final {

 public:

  // This has to be an operator with a precedence lower than << but higher than

  // ?:

  template <typename T>

  void operator&&(const T&) const&& {}

};

}  // namespace log_internal

ABSL_NAMESPACE_END

}  // namespace absl

#endif  // ABSL_LOG_INTERNAL_VOIDIFY_H_