Re: Re: Re: Memory allocation strategies

a nice idiom for preextending strings is

substr($a, length($a), 100, "")
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At least I think it works. This came up on p5p when I was arguing that you should be able to do

length($a) = 20;
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to truncate a string to 20 chars. Due to a less than clear initial posting, most people thought I was looking for pre-extension and someone said I should just use the above.

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Re: Re: Re: Re: Memory allocation strategies by demerphq (Chancellor) on Sep 03, 2003 at 10:41 UTC
Hmm Im in the process of writing an sub that will do the same thing as length($a)=20. :-) Unfortunatly the B classes dont provide a way to get/set the full set of attributes for a PV. And personally I think that length($a)=$x should work both ways, truncating and extending (preferable with extending with "\0"'s ) --- demerphq _{<Elian> And I do take a kind of perverse pleasure in having an OO assembly language...}	[reply] [d/l]

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Re: Re: Re: Re: Memory allocation strategies
by demerphq (Chancellor) on Sep 03, 2003 at 10:41 UTC

Hmm Im in the process of writing an sub that will do the same thing as length($a)=20. :-) Unfortunatly the B classes dont provide a way to get/set the full set of attributes for a PV.

And personally I think that length($a)=$x should work both ways, truncating and extending (preferable with extending with "\0"'s )

_{<Elian> And I do take a kind of perverse pleasure in having an OO assembly language...}

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[d/l]