What are the differences between MFC Exception macros and
C++ exception keywords?
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Answer Posted / hemalatha
The main difference between the macros and the keywords is
that the macros "automatically" delete a caught exception
when the exception goes out of scope. Code using the
keywords does not; exceptions caught in a catch block must
be explicitly deleted. Mixing macros and C++ exception
keywords can cause memory leaks when an exception object is
not deleted, or heap corruption when an exception is
deleted twice.
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