[C400-L] Re: Trap for errors

[Barbara Morris <bmorris@xxxxxxxxxx>]

Bobby.Hicks@xxxxxxxxxxxxxxxx wrote:
> 
> I am new to C, and I'm hoping that someone can help me.  How can I check
> for errors during procedure/program flow.  Basically I have a conversion
> routine to convert a binary field to either a packed or zoned field.   I
> want to ensure that an overflow problem or something similar does not give
> a hard error, instead I want to return an error code to the calling
> program.  Thanks for any help  you can provide me.
> 
> Bobby.

Bobby, C's standard exception handling is through "signals", using
functions setjmp, signal and longjmp.

ILE C also has #pragma exception_handler.

You could also use ILE Condition Handlers - see functions CEEHDLR and
CEEHDLU.

I personally find the #pragma exception_handler to be the easiest to
use, but if you want to learn something that's standard for C, learn
about signals.