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List:       kde-core-devel
Subject:    Re: [MAJOR BUG] g++ 2.95.x generates invalid code for KDE 3.3.0
From:       Matthias Kretz <kretz () kde ! org>
Date:       2004-09-17 22:17:18
Message-ID: 200409180017.19898.kretz () kde ! org
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And here comes a workaround (guess what, it's ugly)

What it does is to delay the code in the ctors until the whole object is 
constructed. For completeness I move the code in SocketBase, but that's not 
really needed.

-- 
C'ya
        Matthias
________________________________________________________
Matthias Kretz (Germany)                          <><
http://Vir.homeip.net/
MatthiasKretz@gmx.net, kretz@kde.org,
Matthias.Kretz@urz.uni-heidelberg.de

["test.cpp" (text/x-c++src)]

#include <unistd.h>

class SocketBase
{
public:
  int *last_i;
  SocketBase()
    : last_i(new int)
  { 
  }

  void workaroundctor()
  {
    write( 1, "SocketBase\n", 11 );
    *last_i = 0;
  }

  virtual void otherfunc(int i)
  {
    *last_i = '0';
  }

  virtual void basefunc(int i)
  {
    otherfunc(i);
  }
};

class ActiveBase: virtual public SocketBase
{
public:
  ActiveBase()
  {
  }

  void workaroundctor()
  {
    SocketBase::workaroundctor();
    write( 1, "ActiveBase\n", 11 );
    basefunc( 2 );
  }

  virtual void otherfunc(int i)
  {
    *last_i = 'a' + i;
  }
};

class StreamSocket: public ActiveBase
{
  int i3;
public:
  StreamSocket()
  {
    workaroundctor();
  }

  void workaroundctor()
  {
    ActiveBase::workaroundctor();
    write( 1, "StreamSocket\n", 13 );
  }
};

main()
{
  StreamSocket c;
  write( 1, c.last_i, sizeof( *c.last_i ) );
  write( 1, "\n", 1 );
}

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