What does msvc 6 throw when an integer divide by zero occurs?

I have been doing a bit of experimenting, and have discovered that an exception is being thrown, when an integer divide by zero occurs.

#include &l开发者_C百科t;iostream>
#include <stdexcept>

using namespace std;


int main
(
    void 
)
{
    try
    {
        int x = 3;
        int y = 0;
        int z = x / y;
        cout << "Didn't throw or signal" << endl;
    }
    catch (std::exception &e)
    {
        cout << "Caught exception " << e.what() << endl;
    }

    return 0;
}

Clearly it is not throwing a std::exception. What else might it be throwing?

It's a Windows structured exception, which has nothing to do with C++ - you would get the same exception if it were a C program.

This article claims to have a way to convert a structured exception to a C++ exception using the _set_se_translator function.

http://www.codeproject.com/KB/cpp/seexception.aspx

The result is undefined, you could use __try / __except block to catch the error (structured exception handling). However, why not simply check for the error before your division?

In msvc6 you can catch it with catch(...) and rethrow it with throw; however since you can't detect exception type that way you're better off doing something else.