Changes between Initial Version and Version 2 of Ticket #2725


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Timestamp:
Nov 25, 2006, 11:34:54 AM (17 years ago)
Author:
Nigel
Comment:

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  • Ticket #2725

    • Property Status changed from new to closed
    • Property Resolution changed from to invalid

  • Ticket #2725 – Description

    initial v2  
    11There are a few places in the code where the result of dynamic_cast isn't tested before it is used. Sadly, in some cases, it can return NULL, which causes a bus error or SEGV.
    22[[BR]]
    3 One particuar problem is in the keypress event processing. Causes a crash on OS X binaries built on 10.4 (gcc4), but running on 10.3. It is an old problem, usually caused by incorrectly compiling with -no-rtti: http://www.gossamer-threads.com/lists/mythtv/dev/72988#72988
     3One particuar problem is in the keypress event processing. Causes a crash on OS X binaries built on 10.4 (gcc4), but running on 10.3. It is an old problem, usually caused by incorrectly compiling with -fno-rtti: http://www.gossamer-threads.com/lists/mythtv/dev/72988#72988
    44[[BR]]
    55Some documents (''e.g.'' http://www.cplusplus.com/doc/tutorial/typecasting.html) say that dynamic_cast ing a base class to a subclass is illegal. QKeyEvent is a base class of QEvent, so if I believe this, it is the problem here.