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Internet Message Format  |  1996-08-06  |  1.3 KB
  1. Path: engnews1.Eng.Sun.COM!taumet!clamage
  2. From: "Dmitry M. Potapov" <dima@florin.msk.su>
  3. Newsgroups: comp.std.c++
  4. Subject: Q : dynamic_cast<>()
  5. Date: 21 Mar 1996 23:52:02 GMT
  6. Organization: DataX/FLORIN, Inc.
  7. Sender: news-service@kiae.su
  8. Approved: clamage@eng.sun.com (comp.std.c++)
  9. Distribution: world
  10. Message-ID: <199603211714.RAA26760@florin.msk.su>
  11. Reply-To: dima@florin.msk.su
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  15. Content-Length: 311
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  17. Originator: clamage@taumet
  18.  
  19. When bad_casting to pointer type, 
  20. dynamic_cast<>() returns NULL.
  21.  
  22. Is there a standard on good_casting,
  23. I mean is it normal if dynamic_cast changes pointer,
  24. and could dynamic_cast<>() be implemented w/o changing
  25. the pointer if the cast was not bad ?
  26.  
  27. Thanks in advance,
  28.  
  29. Potapov Dmitry, dima@florin.msk.su
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