1 /* 2 * Copyright (C) 2018 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 LIBTEXTCLASSIFIER_UTILS_STRINGS_APPEND_H_ 18 #define LIBTEXTCLASSIFIER_UTILS_STRINGS_APPEND_H_ 19 20 #include <string> 21 #include <vector> 22 23 namespace libtextclassifier3 { 24 namespace strings { 25 26 // Append vsnprintf to strp. If bufsize hint is > 0 it is 27 // used. Otherwise we compute the required bufsize (which is somewhat 28 // expensive). 29 void SStringAppendV(std::string *strp, int bufsize, const char *fmt, 30 va_list arglist); 31 32 void SStringAppendF(std::string *strp, int bufsize, const char *fmt, ...) 33 __attribute__((format(printf, 3, 4))); 34 35 std::string StringPrintf(const char *fmt, ...) 36 __attribute__((format(printf, 1, 2))); 37 38 std::string JoinStrings(const char *delim, const std::vector<std::string> &vec); 39 40 } // namespace strings 41 } // namespace libtextclassifier3 42 43 #endif // LIBTEXTCLASSIFIER_UTILS_STRINGS_APPEND_H_ 44