Programming

Hi,
i want to do some manipulation of gcc outputs,
and have some questions:
1. i am trying to check what kind of outputs i can get after running gcc on a *.c file, but except for errors or warnings i don't see anything.
so, what outputs can i get from gcc?

2. does all error and warnings will come with "error:" or "warning:" (i am asking that to know what to grep...

thanks!

You can check the return value - it will be 0 if no errors were emitted (but in this case warnings may have been emitted).


So far as I know, yes - they're all in the form "file:line: X: message" where X is "error" or "warning" (there's also "note" as well, but they're rare) - e.g. "test.c:16: warning: control reaches end of non-void function".

as for the second question - thanks, i thought so too, and now i am more sure

as for the first one, i will try to clarify my question:
i didnt meant what return value i am getting from gcc,
when i run gcc four some kind of source file (*.c), should i suppose to get any output to stdout if everthing is ok?
now i see you write "notes", so are there other stuff?

thanks.

No.

so gcc doesnt print anyting to stdout?

No, as @fpmurphy said gcc does not generate any message if everything is ok.
if you want to see any infos even if gcc successfull maybe you can try some options..

Code:

# with -v(verbose)
builtin gcc options
used thread model std in compiled code (executable in memory)
preprocessor options ..
compiling options ..
ggc (gcc's garbage collector) options .. 
assembly options ..
linking options ..
# with -time (times)
.....
.....
.....

regards
ygemici