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(uptr MaxLength) : String(MaxLength), Length(0) { 22 String[0] = '\0'; 23 } 24 uptr length() { return Length; } 25 const char *data() { return String.data(); } 26 void clear() { 27 String[0] = '\0'; 28 Length = 0; 29 } 30 void append(const char *Format, va_list Args); 31 void append(const char *Format, ...); 32 void output() const { outputRaw(String.data()); } 33 34 private: 35 Vector<char> String; 36 uptr Length; 37 }; 38 39 void Printf(const char *Format, ...); 40 41 } // namespace scudo 42 43 #endif // SCUDO_STRING_UTILS_H_ 44