SEH exception and C++ exception.

SEH exception and C++ exception.

SEH doesn’t mix well with C++ programming because C++ exceptions are implemented internally with SEH and the compiler complains when you try to combine them indiscriminately. The reason for the conflict is that when straight SHE unwinds out of a function, it doesn’t call any of the C++ object destructors for objects created on the stack. Because C++ objects can do all sorts of initialization in their constructors, such as allocating memory for internal data structures, skipping the destructors can lead to memory leaks and other problems.