Becoming a Macintosh Programmer

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Attention to Detail

How do these code blocks differ?

while (notDone) {
  err = GrabLine( &theLine );
  err = ProcessLine( theLine );
  if (err=noErr) return err;
}

while (notDone) {
  err = GrabLine( &theLine );
  err = ProcessLine( theLine );
  if (err==noErr) return err;
}

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