Shall I use cerr

Question

Is it in good style do use cerr in situation described below?

try
    {
    cout << a + b;
    }
    catch(const IntException& e)
    {
        c         


        

Answer 1

stderr is the traditional stream to send error messages (so that the OS/shell/whatever can capture error messages separately from "normal" output), so yes, use std::cerr!

I make no comment as to whether catching an exception simply to print it out is any better than simply letting the exception propagating out of your application...