1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "fcp/base/base_name.h" 18 19 #include <string.h> 20 21 #include <cstdint> 22 #include <string> 23 24 namespace fcp { 25 26 #ifdef _WIN32 27 constexpr char kPathSeparator = '\\'; 28 #else 29 constexpr char kPathSeparator = '/'; 30 #endif 31 BaseName(const std::string & path)32std::string BaseName(const std::string& path) { 33 // Note: the code below needs to be compatible with baremetal build with 34 // nanolibc. Therefore it is implemented via the standard "C" library strrchr. 35 const char* separator_ptr = strrchr(path.c_str(), kPathSeparator); 36 if (separator_ptr == nullptr) return path; 37 38 return path.substr((separator_ptr - path.c_str()) + 1); 39 } 40 41 } // namespace fcp 42