Re: [Boost-users] base64_from_binary Q

Hi, Well I ran into this issue too. This is the way how I've solved this: template<typename InputContainerType> inline String base64_encode(InputContainerType const & cont) { using namespace boost::archive::iterators; typedef base64_from_binary< transform_width< typename InputContainerType::const_pointer, 6, 8, boost::uint8_t > > base64_t; return String(base64_t(&cont[0]), base64_t(&cont[0] + cont.size())); } template inline Container base64_decode(std::basic_string<CharT> str) { str.append(str.size() % 4, CharT('=')); typedef boost::archive::iterators::transform_width< boost::archive::iterators::binary_from_base64, 8, 6, boost::uint8_t > binary_t; typename std::basic_string<CharT>::size_type pos = str.find_last_not_of(CharT('=')); // calculate how many characters we need to process pos = (pos == str.size() -1 ? str.size() : pos ); return Container(binary_t(&str[0]), binary_t(&str[0] + pos)); } So far it seemed to work for me, but still might have a bug. Regards, Vinzenz Terdale, Shantibhushan schrieb:

I am using this sample to prove myself that base64_from_binary and binary_from_base64 can be used in my app. But I am having little problem and not able to understand whats missing

Here is the sample

#include "boost/archive/iterators/base64_from_binary.hpp"

#include "boost/archive/iterators/binary_from_base64.hpp"

#include "boost/archive/iterators/transform_width.hpp"

#include <string>

#include <iostream>

using namespace std;

using namespace boost::archive::iterators;

typedef

base64_from_binary<

transform_width

...

base64_t;

typedef

transform_width<

binary_from_base64std::string::iterator, sizeof(char) * 8, 6

...

binary_t;

int main()

{

string str = "Hello, world!";

cout << str << endl;

string enc(base64_t(str.begin()), base64_t(str.end())); *// Problem here. It works when I specify "str.end()-1" instead of "str.end()" but I loose last character after decoding.*

cout << enc << endl;

string dec(binary_t(enc.begin()), binary_t(enc.end()));

cout << dec << endl;

return 0;

}

Will appreciate any help. I tried std::copy as well and have same problem.

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