STL Compatible Base64 Encoder


Environment: Any C++ compiler with STL support

This is compatible with STL base64 encoder.

It can encode/decode data from/to i(o)streams, streambufs, memory buffers, etc. Encoder uses iterator concept. Iterator must overload the *, ==, !=, and prefics ++ operators.

See encoder using:

1) Declare encoder

#include <base64.hpp>

int _State = 0;
base64<char> encoder; // base64 output/input in chars 
                      // (may be wchar_t, ...) or base64<> encoder;

2) Encode data form cin stream to output file

#include <iostream>
#include <fstream>

// encode from cin

istream& istr = cin;
istreambuf_iterator<char> _From(istr.rdbuf());
istreambuf_iterator<char> _To(0);

//_From, _Last, _To may be any iterator class or pointers

// encode to output file
ofstream ostr("test_out.txt");
ostreambuf_iterator<char> _Out(ostr);

// Encode data with CRLF ta the end of line.
// You can use base64<>::noline() or base64<>::crlfsp()
// or other classes.
encoder.put(_From, _To, _Out, _State, base64<>::crlf());

3) Decode data form file stream to console output stream

// decode from file ...
ifstream istr("test_out.txt");
istreambuf_iterator<char> _From(istr.rdbuf());
istreambuf_iterator<char> _To(0);

// ... to console
ostreambuf_iterator<char> _Out(cout);

encoder.get(_From, _To, _Out, _State);


Download demo project - 5 Kb


  • There are no comments yet. Be the first to comment!

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • As all sorts of data becomes available for storage, analysis and retrieval - so called 'Big Data' - there are potentially huge benefits, but equally huge challenges...
  • The agile organization needs knowledge to act on, quickly and effectively. Though many organizations are clamouring for "Big Data", not nearly as many know what to do with it...
  • Cloud-based integration solutions can be confusing. Adding to the confusion are the multiple ways IT departments can deliver such integration...

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date