Fairphone ODM | 25c12f5 | 2023-12-15 17:24:06 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 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 | #ifndef ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |
| 18 | #define ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |
| 19 | |
| 20 | #include <string_view> |
| 21 | |
| 22 | namespace art { |
| 23 | |
| 24 | // When this code is only compiled on C++20+, these wrappers can be removed and |
| 25 | // calling code changed to call the string_view methods directly. |
| 26 | |
| 27 | inline bool StartsWith(std::string_view sv, std::string_view prefix) { |
| 28 | #if !defined(__cpp_lib_starts_ends_with) || __cpp_lib_starts_ends_with < 201711L |
| 29 | return sv.substr(0u, prefix.size()) == prefix; |
| 30 | #else |
| 31 | return sv.starts_with(prefix); |
| 32 | #endif |
| 33 | } |
| 34 | |
| 35 | inline bool EndsWith(std::string_view sv, std::string_view suffix) { |
| 36 | #if !defined(__cpp_lib_starts_ends_with) || __cpp_lib_starts_ends_with < 201711L |
| 37 | return sv.size() >= suffix.size() && sv.substr(sv.size() - suffix.size()) == suffix; |
| 38 | #else |
| 39 | return sv.ends_with(suffix); |
| 40 | #endif |
| 41 | } |
| 42 | |
| 43 | } // namespace art |
| 44 | |
| 45 | #endif // ART_LIBARTBASE_BASE_STRING_VIEW_CPP20_H_ |