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 // Copyright (c) 2010, Google Inc.

 // All rights reserved.

 //

 // Redistribution and use in source and binary forms, with or without

 // modification, are permitted provided that the following conditions are

 // met:

 //

 //     * Redistributions of source code must retain the above copyright

 // notice, this list of conditions and the following disclaimer.

 //     * Redistributions in binary form must reproduce the above

 // copyright notice, this list of conditions and the following disclaimer

 // in the documentation and/or other materials provided with the

 // distribution.

 //     * Neither the name of Google Inc. nor the names of its

 // contributors may be used to endorse or promote products derived from

 // this software without specific prior written permission.

 //

 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 // binarystream implements part of the std::iostream interface as a

 // wrapper around std::stringstream to allow reading and writing strings

 // and integers of known size.

 #ifndef GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_

 #define GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_

 #include <sstream>

 #include <string>

 #include "common/using_std_string.h"

 #include "google_breakpad/common/breakpad_types.h"

 namespace google_breakpad {

 using std::ios_base;

 using std::ios;

 class binarystream {

  public:

   explicit binarystream(ios_base::openmode which = ios_base::out|ios_base::in)

     : stream_(which) {}

   explicit binarystream(const string &str,

                         ios_base::openmode which = ios_base::out|ios_base::in)

     : stream_(str, which) {}

   explicit binarystream(const char *str, size_t size,

                         ios_base::openmode which = ios_base::out|ios_base::in)

     : stream_(string(str, size), which) {}

   binarystream &operator>>(string &str);

   binarystream &operator>>(uint8_t &u8);

   binarystream &operator>>(uint16_t &u16);

   binarystream &operator>>(uint32_t &u32);

   binarystream &operator>>(uint64_t &u64);

   // Note: strings are truncated at 65535 characters

   binarystream &operator<<(const string &str);

   binarystream &operator<<(uint8_t u8);

   binarystream &operator<<(uint16_t u16);

   binarystream &operator<<(uint32_t u32);

   binarystream &operator<<(uint64_t u64);

   // Forward a few methods directly from the stream object

   bool eof() const { return stream_.eof(); }

   void clear() { stream_.clear(); }

   string str() const { return stream_.str(); }

   void str(const string &s) { stream_.str(s); }

   // Seek both read and write pointers to the beginning of the stream.

   void rewind() {

     stream_.seekg (0, ios::beg);

     stream_.seekp (0, ios::beg);

     // This is to clear all the error flags, since only the EOF flag is cleared

     // with seekg().

     stream_.clear();

   }

  private:

   std::stringstream stream_;

 };

 }  // namespace google_breakpad

 #endif  // GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_