Bug#436175: streambuf inheritance problem.

["Amos Jeffries" <squid3@treenet.co.nz>]

Package: g++
Version: 4.1.3 20070718 (prerelease)

Creating two classes that inherit from std::ostream and std::streambuf.

When used with setw and characters:
  child << "some text" << std::setw(4) << "!";
only ever stores "some text"

However numerics work:
  child << "some text" << std::setw(4) << "1";
stores the desired "some text   1"

The child class code as written works perfectly in earlier g++ versions,
but fails in 4.1.3+ and 4.2.1+ (both the latest prereleases)

I have experimented by implementing every possible innheritable function
of both ostream and streambuf that I could find. None of the
un-implemented methods appears to be ever called.

The classes as written are:

class StoreEntryStream : public std::ostream
{

public:
    StoreEntryStream(StoreEntry *anEntry) : std::ostream(&_buffer),
 _buffer(anEntry) { this->init(&_buffer);}

private:
    StoreEntryStreamBuf _buffer;

public:
    StoreEntryStreamBuf * rdbuf() const;
};