compiler-rt/lib/scudo/standalone/string_utils.h

   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 vappend(const char *Format, va_list Args);
  29   void append(const char *Format, ...) FORMAT(2, 3);
  30   void output() const { outputRaw(String.data()); }
  31   void reserve(size_t Size) { String.reserve(Size + 1); }
  32
  33 private:
  34   Vector<char> String;
  35 };
  36
  37 int formatString(char *Buffer, uptr BufferLength, const char *Format, ...)
  38     FORMAT(3, 4);
  39 void Printf(const char *Format, ...) FORMAT(1, 2);
  40
  41 } // namespace scudo
  42
  43 #endif // SCUDO_STRING_UTILS_H_