Robust Function?

[computer11]

In computer programming class, our teacher is out, and now we're stuck on a program. What is a Robust Function?

[jsmith]

A function that does one thing and does it well.

It has deterministic (and useful) behavior for all inputs, valid and invalid.

[Disch]

I didn't know that had a name. I thought it was just 'good programming' XD

[jsmith]

It doesn't have a name. OP just thought it did.

[Galik]

It is a function that won't crap out if you feed it garbage data.