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

I think it's more like:

streambuf.commit( number_of_bytes_read );

istream istr( &streambuf );
string s;
istr >> s;

I haven't looked into the basic_streambuf code, but I believe that should be just one copy into the string.