1 /* 2 * 3 * Copyright 2017 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_CORE_LIB_GPRPP_MAP_H 20 #define GRPC_CORE_LIB_GPRPP_MAP_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <string.h> 25 26 #include <map> 27 28 #include "absl/strings/string_view.h" 29 30 #include "src/core/lib/gprpp/memory.h" 31 32 namespace grpc_core { 33 34 struct StringLess { operatorStringLess35 bool operator()(const char* a, const char* b) const { 36 return strcmp(a, b) < 0; 37 } operatorStringLess38 bool operator()(const grpc_core::UniquePtr<char>& a, 39 const grpc_core::UniquePtr<char>& b) const { 40 return strcmp(a.get(), b.get()) < 0; 41 } operatorStringLess42 bool operator()(const absl::string_view& a, 43 const absl::string_view& b) const { 44 const size_t min_size = std::min(a.size(), b.size()); 45 int c = strncmp(a.data(), b.data(), min_size); 46 if (c != 0) return c < 0; 47 return a.size() < b.size(); 48 } 49 }; 50 51 } // namespace grpc_core 52 53 #endif /* GRPC_CORE_LIB_GPRPP_MAP_H */ 54