Catching exceptions by value, reference or pointer

Question

Possible Duplicate:
catch exception by pointer in C++

What is the best way to catch an exception: by value, reference or pointer and why?

Answer 1

You nearly always want to catch exceptions by (usually const) reference.

Answer 2

By const reference. You can avoid object copying.

Answer 3

You dont want to raise any more exceptions so catching by reference is best

Answer 4

By reference, unless you're doing Windows programming, where exceptions are typically caught by pointer.