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| From | Keith Thompson <kst-u@mib.org> |
| Newsgroups | comp.lang.c.moderated |
| Subject | Re: distributing data across a structure (new to c please help) |
| Date | Mon, 20 Aug 2012 22:10:12 -0500 (CDT) |
| Organization | None to speak of |
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Dennis Yurichev <dennis_mailing_lists@conus.info> writes:
[...]
> Also, do not forget about C compiler may align all struct members by 4
> bytes on x86 and 8 bytes on Win64.
> Since Windows PE file fields are all differently sized and this is very
> important, please consult "pack" pragma:
> http://msdn.microsoft.com/en-us/library/2e70t5y1(v=vs.80).aspx
A compiler is unlikely to align *all* struct members on 4-byte or 8-byte
boundaries. For example, given:
struct foo {
char x;
char y;
};
I'd expect offsetof(struct foo, y) to be 1 and sizeof (struct foo) to be
2 for most compilers.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Will write code for food.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
--
comp.lang.c.moderated - moderation address: clcm@plethora.net -- you must
have an appropriate newsgroups line in your header for your mail to be seen,
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Back to comp.lang.c.moderated | Previous | Next — Previous in thread | Next in thread | Find similar
distributing data across a structure (new to c please help) nwdpil <mkeput@gmail.com> - 2012-08-09 20:32 -0500
Re: distributing data across a structure (new to c please help) James Kuyper <jameskuyper@verizon.net> - 2012-08-10 00:43 -0500
Re: distributing data across a structure (new to c please help) Dennis Yurichev <dennis_mailing_lists@conus.info> - 2012-08-20 14:17 -0500
Re: distributing data across a structure (new to c please help) Keith Thompson <kst-u@mib.org> - 2012-08-20 22:10 -0500
Re: distributing data across a structure (new to c please help) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-08-20 22:11 -0500
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