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Re: Error handling - how much?by Ultra (Hermit) |
on Jun 12, 2005 at 19:55 UTC ( [id://465997]=note: print w/replies, xml ) | Need Help?? |
I can only agree with salva. Wrapping every sentence in eval will not only slow down your entire program, but it will obfuscate it to the point of no return.
Instead, I think it's more useful to be aware of certain situations prone to generating errors. Here's an incomplete list: * use strict and warnings for typos and common mistakes * check the user's input using regular expressions (taint check is a big helper here) * be careful about arithmetic operations (divide by zero etc.) * check the return of the system calls and generally the retun values of all the functions you use (including yours), and when you can't continue, throw a useful message so that the user can easily spot the problem and eventualy contact you if it is the case... I don't think it's a matter of "how much" but of "when and how" to check for possible errors.
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