On Mon, May 02, 2005 at 09:19:51PM -0700, Steven M. Schultz wrote:
> My concern is that there may be (if not today, then tomorrow) systems
> for which 'unsigned int' is 64bits.
Data points: I've seen an old Cray Unix system where all types except
char were 64 bits. And I believe there's current DSP compilers where
all types, including char, are 64 bits.
For regular desktops and servers, a 64-bit int would be very unusual.
Linux normally uses 32-bit int on 64-bit hardware, and I believe most
other Unix-like systems are doing the same.
> The code seems to be going to a great deal of effort to determine ande
> use the machine's natural (fastest) word/int length and changing that
> to be 32 might not be optimal (or correct) for some systems.
C99 has "int_fast32_t" and "uint_fast32_t" types in <stdint.h>, which
are supposed to be set to the fastest integer types of at least 32
bits. Of course if you're shoving the code through a C++ compiler, or
using some older C compiler, these might not be defined.
-Dave Dodge
-------------------------------------------------------
This SF.Net email is sponsored by: NEC IT Guy Games.
Get your fingers limbered up and give it your best shot. 4 great events, 4
opportunities to win big! Highest score wins.NEC IT Guy Games. Play to
win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20
_______________________________________________
Mjpeg-users mailing list
Mjpeg-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
