in reply to
Question on style/technique
Well, I would say you have these options to trap the error:
- eval it and check for errors in $@
- use an if/else statement as above.
- use a little open B,"$blah" or error_subroutine("$!")#and do stuff in the routine.
The thing is, if you do not open the file successfully and do not write/read the data you want from/to the file correctly, it could (and most likely will) cause some problems down the road.
If you are using -w
as you should, you might get those annoying little Use of uninitialized value
errors which could keep your program from working at all.
The advice I would give you is, just die
if something goes wrong because your program just might die later (unless you clog your program with double-checks everything). So, I would use this:
open(LOG,">>$log") or die"Error writing to error-log file...how we
print "Error at ",__LINE__," here's what happened: $!";
proceed as normal....
Thank you to crazyinsomniac
for pointing out that open FH, $file || or die;
will always result as true and hence never fail. Three cheers for my hero! ;)
print chr($_-39); # Easy but its ok.