You didn't ask what's best for them. You asked what you
should use, without giving any information what kind of
failures you wanted to signal.
Plagiarize the code of others, I say
That's about the worst you can do. It's the fast way to make
a very bad coder out of you. It's important to understand
what you are doing. Just asking what you should do, and
blindly copying that if you would have gotten an unambigious
answer is very, very bad.
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