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Message from discussion Alignment Issues with *ManagedStruct?
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Leopold Toetsch  
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 More options Feb 4 2004, 4:50 am
Newsgroups: perl.perl6.internals
From: l...@toetsch.at (Leopold Toetsch)
Date: Wed, 4 Feb 2004 09:52:34 +0100
Local: Wed, Feb 4 2004 3:52 am
Subject: Re: Alignment Issues with *ManagedStruct?
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Chromatic <chroma...@wgz.org> wrote:
>    set layout['member'], .DATATYPE_INT
>    push layout, 0
>    push layout, 0

Pushing zero as offset should do The Right Thing, that is proper
aligning the item. Tighter packed structures can be achieved with
explicit offset parameters.

Its basically an one-liner in unmanagedstruct.pmc:205

 if (offs == 0 && toff % data_size)
  advance (offs, toff) to data_size alignment

> Is this one for the TODO list, or did I catch a pumpking in good
> humours?

Takers wanted :)

> -- c

leo

 
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