size of long long int on amd 64
Wed Nov 30 21:34:00 GMT 2005
On Mon, 28 Nov 2005, John Love-Jensen wrote:
> Hi Vincent,
> > i would like to know if it is normal that long int and long long int are
> > 64 bits long on amd64 (I have thought that long long would have been 128
> > bits long).
> Hmmmm. I'd have thought that on a 64-bit word-size architecture, int would
> be 64-bits big, long would be 128-bits big, and long long would be 256-bits
on amd64, with gcc 4.0.3 (well, an instable debian release),
int is of size 32 bits
long int is of size 64 bits
long long int is of size 64 bits
> After all, canonically, int is supposed to be the natural word size of the
> architecture. And long is twice that size, and long long is ... well,
> whatever long long is supposed to be.
i also supposed something like that.
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