Copy a streambuf's contents to a string

Question

Apparently boost::asio::async_read doesn\'t like strings, as the only overload of boost::asio::buffer allows me to create const_buffer

Answer 1

One can also obtain the characters from asio::streambuf using std::basic_streambuf::sgetn:

asio::streambuf in;
// ...
char cbuf[in.size()+1]; int rc = in.sgetn (cbuf, sizeof cbuf); cbuf[rc] = 0;
std::string str (cbuf, rc);