1 //===-- string_utils.h ------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef SCUDO_STRING_UTILS_H_ 10 #define SCUDO_STRING_UTILS_H_ 11 12 #include "internal_defs.h" 13 #include "vector.h" 14 15 #include <stdarg.h> 16 17 namespace scudo { 18 19 class ScopedString { 20 public: 21 explicit ScopedString() { String.push_back('\0'); } 22 uptr length() { return String.size() - 1; } 23 const char *data() { return String.data(); } 24 void clear() { 25 String.clear(); 26 String.push_back('\0'); 27 } 28 void append(const char *Format, va_list Args); 29 void append(const char *Format, ...) FORMAT(2, 3); 30 void output() const { outputRaw(String.data()); } 31 32 private: 33 Vector<char> String; 34 }; 35 36 int formatString(char *Buffer, uptr BufferLength, const char *Format, ...) 37 FORMAT(3, 4); 38 void Printf(const char *Format, ...) FORMAT(1, 2); 39 40 } // namespace scudo 41 42 #endif // SCUDO_STRING_UTILS_H_ 43