printing error messages

From: gsa <hsggwk@xxxxxxxxx>
Date: Fri, 30 May 2008 09:07:27 -0700 (PDT)

Hi,
I am new to C so please bear with my stupid questions. I am
trying to open a file to write, but the code complains that it is
unable to do so. How do I get C to print the reason it is failing?
Something like the $! function in perl. Thanks a lot for all your
help.

.

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