Function Decode

libs/coding/base64.cpp:26–32

// From: http://stackoverflow.com/a/28471421

std::string Decode(std::string const & val)
{
  using namespace boost::archive::iterators;
  using It = transform_width<binary_from_base64<std::string::const_iterator>, 8, 6>;
  return boost::algorithm::trim_right_copy_if(std::string(It(std::begin(val)), It(std::end(val))),
                                              [](char c) { return c == '\0'; });
}

std::string Encode(std::string_view val)
{