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      1 /*
      2  * Copyright (C) 2014 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 ART_LIBARTBASE_BASE_HEX_DUMP_H_
     18 #define ART_LIBARTBASE_BASE_HEX_DUMP_H_
     19 
     20 #include "base/macros.h"
     21 
     22 #include <ostream>
     23 
     24 namespace art {
     25 
     26 // Prints a hex dump in this format:
     27 //
     28 // 01234560: 00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff  0123456789abcdef
     29 // 01234568: 00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff  0123456789abcdef
     30 class HexDump {
     31  public:
     32   HexDump(const void* address, size_t byte_count, bool show_actual_addresses, const char* prefix)
     33       : address_(address), byte_count_(byte_count), show_actual_addresses_(show_actual_addresses),
     34         prefix_(prefix) {
     35   }
     36 
     37   void Dump(std::ostream& os) const;
     38 
     39  private:
     40   const void* const address_;
     41   const size_t byte_count_;
     42   const bool show_actual_addresses_;
     43   const char* const prefix_;
     44 
     45   DISALLOW_COPY_AND_ASSIGN(HexDump);
     46 };
     47 
     48 inline std::ostream& operator<<(std::ostream& os, const HexDump& rhs) {
     49   rhs.Dump(os);
     50   return os;
     51 }
     52 
     53 }  // namespace art
     54 
     55 #endif  // ART_LIBARTBASE_BASE_HEX_DUMP_H_
     56