Date: Tue, 23 Oct 2007 19:00:42 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: Bruce Cran <bruce@cran.org.uk>, questions@freebsd.org Subject: Re: Mentor for C self study wanted Message-ID: <471EA74A.6060206@u.washington.edu> In-Reply-To: <471E7778.4060909@cran.org.uk> References: <200710232044.53240.h.schmalzbauer@omnisec.de> <20071023220134.3abd635e@epia-2.farid-hajji.net> <20071023162454.93851854.wmoran@potentialtech.com> <200710232324.09851.h.schmalzbauer@omnisec.de> <20071024002649.6cc41512@epia-2.farid-hajji.net> <471E7778.4060909@cran.org.uk>
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Bruce Cran wrote:
> cpghost wrote:
>
>> There's a mismatch here: scanf("%d", ...) expects a pointer to int,
>> while &nnote is a pointer to a short. Normally, an int occupies more
>> bytes in memory than a short (typically sizeof(int) == 4 on 32bit
>> platforms, and sizeof(int) == 8 on 64bit platforms; while typically
>> sizeof(short) == 2).
>
> I think short and int stay the same on both 32 and 64 bit platforms,
> while it's only long that gets bumped to 8 bytes. At least that seems
> to be what happens on FreeBSD amd64.
>
> --
> Bruce
No... you're only safe using int32, int64, etc. Just for grins try
compiling a program like this:
#include <stdio.h>
int main() {
printf("%d\n", sizeof(int));
return 0;
}
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