Dumb question: What IS a trigraph?

[mcdonald at uxe.cso.uiuc.edu]

>Unless you're importing a lot of code from
>European sites or are implementing a C compiler, you shouldn't have to
>be concerned about trigraphs, since you'll never use nor see them.

puts("Should I have to worry about trigraphs in ANSI C??!");

What does the above print? According to K&R I it should print

Should I have to worry about trigraphs in ANSI C??!

Does it?

Alfred E. Neumann (mcdonald at uxe.cso.uiuc.edu)