| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * 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 ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |
| #define ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |
| |
| #include <string_view> |
| |
| namespace art { |
| |
| // When this code is only compiled on C++20+, these wrappers can be removed and |
| // calling code changed to call the string_view methods directly. |
| |
| inline bool StartsWith(std::string_view sv, std::string_view prefix) { |
| #if !defined(__cpp_lib_starts_ends_with) || __cpp_lib_starts_ends_with < 201711L |
| return sv.substr(0u, prefix.size()) == prefix; |
| #else |
| return sv.starts_with(prefix); |
| #endif |
| } |
| |
| inline bool EndsWith(std::string_view sv, std::string_view suffix) { |
| #if !defined(__cpp_lib_starts_ends_with) || __cpp_lib_starts_ends_with < 201711L |
| return sv.size() >= suffix.size() && sv.substr(sv.size() - suffix.size()) == suffix; |
| #else |
| return sv.ends_with(suffix); |
| #endif |
| } |
| |
| } // namespace art |
| |
| #endif // ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |