alignment issue - Codewarrior vs XCode
alignment issue - Codewarrior vs XCode
- Subject: alignment issue - Codewarrior vs XCode
- From: Alan Dail <email@hidden>
- Date: Tue, 12 Jul 2005 12:04:48 -0400
I'm doing some work on an app that has been broken into two apps.
App one writes files to disk, app two reads those files in from disk
and does some batch processing. App 1 is written with MacApp and
uses Codewarrior. App 2 is the one I'm working on and is a cocoa
app. I've been working on moving the cocoa app from codewarrior to
XCode as step 1 of migrating to support the future Intel macs and
I've run into an issue.
The first part of the file is a header that is created by simply
block writing a struct to disk. Not the best approach for sure, but
that's what I have to work with at this point. The struct has a
bunch of shorts/long/bool/etc. The problem I'm running into is the
struct is a different length in XCode as it is in codewarror. And
setting pragma align statements to adjust it not only isn't helping,
but is actually giving me different results on the different compilers.
I've tried
#pragma align=power
#pragma align=mac68k
each followed by
#pragma align=reset
at the end of the structure definitions and get different size
structs. Clearly the code to read and write the file will eventually
have to be rewritten to handle endian issues, but for now at least,
I'd like to find a way to get the same size struct on both
compilers. Is there something I'm perhaps overlooking?
Alan
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