Setting breakpoint in file (how?)

[Frank Ross]

I'm kind of a newbie to gdb, and after RTFMing (though I gotta admit, the
manual wasn't very fine), I still don't know what to do. 

I'm trying to set a breakpoint in a file. I understand that you have to
add the directory with the pertinant file by typing 

directory NameOfFile.

After doing this, I tried entering something like

break TheFile.c:41

and I got the message

"Can't find member of namespace, class, struct, or union named
"TheFile.c""

Can anyone shed some light on this?

--Frank