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