stringbuf Constructor Poblem

[zb0S216C]

I'm learning about stringbufs, and filebufs. However, I ran into a problem when defining a stringbuf instance.

stringbuf Constructors:

explicit stringbuf ( ios_base::openmode which = ios_base::in | ios_base::out );
explicit stringbuf ( const string& str, ios_base::openmode which = ios_base::in | ios_base::out );


When I use the second constructor, I receive an error saying: incomplete type is not allowed

This is my code:

#include <iostream>

using std::stringbuf;
using std::string;
using std::ios_base;

int main( )
{
    string Buffer( "Sample String" );
    stringbuf StringBuffer( Buffer ); // Error: incomplete type is not allowed

    return 0;
}

Any ideas?

Also, is it worth learning about stringbuf, filebuf, and streambuf?

[hamsterman]

Just add #include <sstream> . Whatever iostream inclues only forward declares stringbuf, but doesn't define it.

[zb0S216C]

Thanks, Hamsterman.