chromium/third_party/grpc/src/include/grpcpp/support/string_ref.h

//
//
// Copyright 2015 gRPC 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 GRPCPP_SUPPORT_STRING_REF_H
#define GRPCPP_SUPPORT_STRING_REF_H

#include <string.h>

#include <algorithm>
#include <iosfwd>
#include <iostream>
#include <iterator>

#include <grpcpp/support/config.h>

namespace grpc {

/// This class is a non owning reference to a string.
///
/// It should be a strict subset of the upcoming std::string_ref.
///
/// \see http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
///
/// The constexpr is dropped or replaced with const for legacy compiler
/// compatibility.
class string_ref { … };

/// Comparison operators
inline bool operator==(string_ref x, string_ref y) { … }
inline bool operator!=(string_ref x, string_ref y) { … }
inline bool operator<(string_ref x, string_ref y) { … }
inline bool operator<=(string_ref x, string_ref y) { … }
inline bool operator>(string_ref x, string_ref y) { … }
inline bool operator>=(string_ref x, string_ref y) { … }

inline std::ostream& operator<<(std::ostream& out, const string_ref& string) { … }

}  // namespace grpc

#endif  // GRPCPP_SUPPORT_STRING_REF_H