1 /* 2 * Copyright 2021 Google Inc. All rights reserved. 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 FLATBUFFERS_STRING_H_ 18 #define FLATBUFFERS_STRING_H_ 19 20 #include "flatbuffers/base.h" 21 #include "flatbuffers/vector.h" 22 23 namespace flatbuffers { 24 25 struct String : public Vector<char> { c_strString26 const char *c_str() const { return reinterpret_cast<const char *>(Data()); } strString27 std::string str() const { return std::string(c_str(), size()); } 28 29 // clang-format off 30 #ifdef FLATBUFFERS_HAS_STRING_VIEW string_viewString31 flatbuffers::string_view string_view() const { 32 return flatbuffers::string_view(c_str(), size()); 33 } 34 #endif // FLATBUFFERS_HAS_STRING_VIEW 35 // clang-format on 36 37 bool operator<(const String &o) const { 38 return StringLessThan(this->data(), this->size(), o.data(), o.size()); 39 } 40 }; 41 42 // Convenience function to get std::string from a String returning an empty 43 // string on null pointer. GetString(const String * str)44static inline std::string GetString(const String *str) { 45 return str ? str->str() : ""; 46 } 47 48 // Convenience function to get char* from a String returning an empty string on 49 // null pointer. GetCstring(const String * str)50static inline const char *GetCstring(const String *str) { 51 return str ? str->c_str() : ""; 52 } 53 54 #ifdef FLATBUFFERS_HAS_STRING_VIEW 55 // Convenience function to get string_view from a String returning an empty 56 // string_view on null pointer. GetStringView(const String * str)57static inline flatbuffers::string_view GetStringView(const String *str) { 58 return str ? str->string_view() : flatbuffers::string_view(); 59 } 60 #endif // FLATBUFFERS_HAS_STRING_VIEW 61 62 } // namespace flatbuffers 63 64 #endif // FLATBUFFERS_STRING_H_