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// Copyright 2017 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
//
//      http://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.
//

#ifndef ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
#define ABSL_BASE_INTERNAL_LOG_SEVERITY_H_

#include "absl/base/attributes.h"

namespace absl {

enum class LogSeverity : int {
  kInfo = 0,
  kWarning = 1,
  kError = 2,
  kFatal = 3,
};

constexpr const char* LogSeverityName(absl::LogSeverity s) {
  return s == absl::LogSeverity::kInfo
             ? "INFO"
             : s == absl::LogSeverity::kWarning
                   ? "WARNING"
                   : s == absl::LogSeverity::kError
                         ? "ERROR"
                         : s == absl::LogSeverity::kFatal ? "FATAL" : "UNKNOWN";
}

// Note that out-of-range large severities normalize to kError, not kFatal.
constexpr absl::LogSeverity NormalizeLogSeverity(absl::LogSeverity s) {
  return s < absl::LogSeverity::kInfo
             ? absl::LogSeverity::kInfo
             : s > absl::LogSeverity::kFatal ? absl::LogSeverity::kError : s;
}
constexpr absl::LogSeverity NormalizeLogSeverity(int s) {
  return NormalizeLogSeverity(static_cast<absl::LogSeverity>(s));
}

}  // namespace absl

#endif  // ABSL_BASE_INTERNAL_LOG_SEVERITY_H_