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| The stupid question is the question not asked | |
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Re^3: How the auto-increment operator works?by jcb (Parson) |
| on Aug 02, 2020 at 00:31 UTC ( [id://11120220]=note: print w/replies, xml ) | Need Help?? |
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When you are counting in base-10 and you reach 99, you add a leading "1" instead of wrapping back to only "00". The magic autoincrement does the same with letters: when you reach the end of the alphabet, it adds a leading "a" while wrapping back instead of repeating a previous value. This is also why "z" becomes "aa": $ perl -e '$X = "z"; print $X, "\n"; $X++; print $X, "\n";' z aa
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