How not to remove trailing empty strings from an array

Just a quick note to document a funny error.

I tried to remove trailing empty strings from an array of strings with the following code.

    pop @msgstr while !length($msgstr[-1]);
[download]

This didn't work. Can you guess why? Solution under the fold.

Comment on How not to remove trailing empty strings from an array Select or Download Code

Replies are listed 'Best First'.
Re: How not to remove trailing empty strings from an array by Neighbour (Friar) on Apr 16, 2013 at 14:32 UTC
Close, but subtly different (imho), it <Reveal this spoiler or all in this thread>	[reply] [d/l] [select]
Re^2: How not to remove trailing empty strings from an array by ambrus (Abbot) on Apr 16, 2013 at 16:51 UTC
My actual fix was <Reveal this spoiler or all in this thread>	[reply] [d/l]
Re^2: How not to remove trailing empty strings from an array by LanX (Bishop) on Apr 16, 2013 at 17:21 UTC
Nope, I suppose ambrus also wants to strip trailing ... <Reveal this spoiler or all in this thread> Cheers Rolf ( addicted to the Perl Programming Language)	[reply]
Re: How not to remove trailing empty strings from an array by LanX (Bishop) on Apr 16, 2013 at 17:17 UTC
the problem comes from ... <Reveal this spoiler or all spoilers in this node or all in this thread> I thought <Reveal this spoiler> could solve this, but no chance. Cheers Rolf ( addicted to the Perl Programming Language)	[reply] [d/l]