About exception

qt_learning

Hi
I am testing try / catch
so I coded as below

int a = 100, b = 0;
try {
    int c = a/b;
}  catch (...) {
    qDebug() << "error A";
}

When I am debuging that code, An excption occurred in "int c = a/b;"
but it didnot go inside the catch statement.
the excepton message is as follows

How do I make the program go into a catch statement when an exception occurs in a try statement?

J.Hilk

@qt_learning
You need to check it yourself and throw an exception. Integer divide by zero is not an exception in standard C++, its still "undefined behaviour"

JonB

@qt_learning
https://stackoverflow.com/questions/6121623/catching-exception-divide-by-zero

@J-Hilk
I think https://stackoverflow.com/a/26315860/489865 is saying MSVC (only) has a /EHa option for extended exceptions?

J.Hilk

@JonB said in About exception:

/EHa

What /EHa does is chaniging the definition of an exception, extending it, wrapping system level errors as exceptions. This is non-standard and AFAIK MSVC specific.

I would stay as far away from it as possible.