[C/C++] Abusing throwing exception drops performance severely.

Language/C&C++ 2008.04.10 23:36
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Throwing exception in C++ is very expensive operation. But, "try... catch..." itself doesn't drain performance if exception is not thrown. So, "Throwing exception" should not be used for just convenience in coding!! This should be used only to handle unexpected and not-often-raised exception!
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