Re: alignment of data-types

Mark McIntyre <markmcintyre@spamcop.net>
11 Feb 2003 01:57:26 -0500

          From comp.compilers
Related articles
Re: alignment of data-types gah@ugcs.caltech.edu (Glen Herrmannsfeldt) (2003-02-06)
Re: alignment of data-types anton@mips.complang.tuwien.ac.at (2003-02-11)
Re: alignment of data-types markmcintyre@spamcop.net (Mark McIntyre) (2003-02-11)
Re: alignment of data-types gah@ugcs.caltech.edu (Glen Herrmannsfeldt) (2003-02-12)
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From: Mark McIntyre <markmcintyre@spamcop.net>
Newsgroups: comp.lang.c,comp.compilers
Date: 11 Feb 2003 01:57:26 -0500
Organization: Compilers Central
References: <3e3fbe78$0$49117$e4fe514c@news.xs4all.nl> <u6i04vgrps4ar212a1s8knie78jm193e63@4ax.com> 03-02-033
Keywords: architecture
Posted-Date: 11 Feb 2003 01:57:26 EST

On 6 Feb 2003 00:16:31 -0500, in comp.lang.c , "Glen Herrmannsfeldt"
<gah@ugcs.caltech.edu> wrote:


>"Mark McIntyre" <markmcintyre@spamcop.net> wrote in message
>> You have little or no chance of being better at it than the guys who
>> wrote it, at least not till you're a guru programmer, by which stage
>> you won't need to ask us for advice....
>
>Should, but not always true.
>
>It is common for x86 compilers to allocate double variables on 4 byte
>boundaries. This was optimal on the 386 and 486, but not on pentium
>and later processors. The difference can be large.


Indeed. But by the time hte OP truly understands why that is so, he
for sure won't need to ask questions in CLC. Hence the 2nd part of my
remark.


--
Mark McIntyre
CLC FAQ <http://www.eskimo.com/~scs/C-faq/top.html>
CLC readme: <http://www.angelfire.com/ms3/bchambless0/welcome_to_clc.html>

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