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Handle program exit consistently #29

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@Filkolev Filkolev commented Dec 3, 2024

Handle error conditions uniformly by following these rules:

  • return 0 on success and 1 on failure
  • when an error occurs in main() use return
  • when an error occurs in a function other than main() use exit()
  • error messages are printed on stderr

Handle error conditions uniformly by following these rules:
- return 0 on success and 1 on failure
- when an error occurs in main() use return
- when an error occurs in a function other than main() use exit()
- error messages are printed on stderr
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