Re: How the auto-increment operator works?

Please use [...] for linking like [https://perldoc.perl.org/5.32.0/perlop.html#Auto-increment-and-Auto-decrement] for https://perldoc.perl.org/5.32.0/perlop.html#Auto-increment-and-Auto-decrement.°

Perl allows ranges of numbers and ranges of characters and a mix of both.

This affects multiple operators, not only ++

One use-case was uniquely naming log files and characters need far less space than numbers.

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

°) the "EDIT" button will help you edit your post.

You can also use [doc://...] for documentation [doc://perlop] -> perlop

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Re^2: How the auto-increment operator works? by zapdos (Sexton) on Aug 01, 2020 at 18:51 UTC
Please, why `my $foo = "Zz"; print ++$foo;` prints "AAa" and not "Aaa"? And why `$my foo = "c9"; print ++$foo;` prints "d0" and not "c10"?	[reply] [d/l] [select]
Re^3: How the auto-increment operator works? by LanX (Saint) on Aug 02, 2020 at 00:00 UTC
Looks like you have three groups of symbols - digits , lower and uppercase characters - and every position stays within its group. If a new position is needed it'll adjust to the leftmost group. This makes sense to me, because the structure of a log_89ABCacd.txt file will always look the same, with only the numbers growing. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]
Re^4: How the auto-increment operator works? by zapdos (Sexton) on Aug 02, 2020 at 00:20 UTC
if I do `my $foo = "Be"; print ++$foo;` it prints "Bf". But if I do `my $foo = "Bz"; print ++$foo;` it prints "Ca". I'm not getting this at all.	[reply] [d/l] [select]
Re^5: How the auto-increment operator works? by LanX (Saint) on Aug 02, 2020 at 00:28 UTC
Re^6: How the auto-increment operator works? by zapdos (Sexton) on Aug 02, 2020 at 00:43 UTC
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