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| author | Hauke D <haukex@zero-g.net> | 2020-02-10 20:24:35 +0100 |
|---|---|---|
| committer | Nicolas R <nicolas@atoomic.org> | 2020-07-30 17:14:27 -0600 |
| commit | f4941eebb5185b70b980fcfea9f7b02f377f1f70 (patch) | |
| tree | b86f397a369ed622a183391359e0753c06a8d2ef /pod/perlop.pod | |
| parent | 015b02fd303c1bc1372d284a230e8e84520de109 (diff) | |
| download | perl-f4941eebb5185b70b980fcfea9f7b02f377f1f70.tar.gz | |
Note range op behavior change in docs
This change documents the previous behavior of the range operator with magic string increment in Perl 5.30 and below - the change was introduced in commit d1bc97feec from GitHub #16770 (RT133695).
Diffstat (limited to 'pod/perlop.pod')
| -rw-r--r-- | pod/perlop.pod | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/pod/perlop.pod b/pod/perlop.pod index 2f0fa4abf7..3e6c10f767 100644 --- a/pod/perlop.pod +++ b/pod/perlop.pod @@ -1214,6 +1214,14 @@ If you want to force strings to be interpreted as numbers, you could say @numbers = ( 0+$first .. 0+$last ); +B<Note:> In Perl versions 5.30 and below, I<any> string on the left-hand +side beginning with C<"0">, including the string C<"0"> itself, would +cause the magic string increment behavior. This means that on these Perl +versions, C<"0".."-1"> would produce C<"0"> through C<"99">, which was +inconsistent with C<0..-1>, which produces the empty list. This also means +that C<"0".."9"> now produces a list of integers instead of a list of +strings. + =item * If the initial value specified isn't part of a magical increment |