Re^2: split problem

Except that if you assign any value past the end of an array, Perl is supposed to automatically lengthen the array to accommodate the value.

use strict;
use 5.10.0;
my @flds;
$flds[16] = undef;
say 0+ @flds;
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I can see no rational reason to treat an array holding the results of a split differently other arrays.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

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Re^3: split problem by kcott (Archbishop) on Nov 30, 2016 at 00:09 UTC
"Except that if you assign any value past the end of an array, Perl is supposed to automatically lengthen the array to accommodate the value." You're correct. See my update. I've stricken the text concerning "past the end of the array". — Ken	[reply]
Re^4: split problem by Anonymous Monk on Nov 30, 2016 at 01:03 UTC
Hi, thank you I've been trying to reproduce the error and I can do it by marking the array readonly `$ perl -e " use Data::Lock qw/ dlock /; use Devel::Peek; my @f; + Dump\@f; dlock \@f; Dump\@f; $f[1]=1; "` [download] SV = IV(0x3f9ad8) at 0x3f9adc REFCNT = 1 FLAGS = (TEMP,ROK) RV = 0x99bb0c SV = PVAV(0x3fa970) at 0x99bb0c REFCNT = 2 FLAGS = (PADMY) ARRAY = 0x0 FILL = -1 MAX = -1 ARYLEN = 0x0 FLAGS = (REAL) SV = IV(0x3f9ad8) at 0x3f9adc REFCNT = 1 FLAGS = (TEMP,ROK) RV = 0x99bb0c SV = PVAV(0x3fa970) at 0x99bb0c REFCNT = 2 FLAGS = (PADMY,READONLY) ARRAY = 0x0 FILL = -1 MAX = -1 ARYLEN = 0x0 FLAGS = (REAL) Modification of a read-only value attempted at -e line 1. That split is somehow is marking it readonly is so weird :D	[reply] [d/l]