Type sizes
David Keppel
pardo at june.cs.washington.edu
Sun Aug 28 15:49:38 AEST 1988
I'd like to know if the numbers and the rationalle are correct.
If you have other personal favorites, be sure to send them to me :-).
type pdp11 VAX 68000 Cray-2 Unisys 1100 80386
char 8 8 8 8 9 8
short 16 16 8/16 32/64 18 8/16
int 16 32 16/32 32/64 36 16/32
long 32 32 32 64/64 36 32
char* 16 32 32 64/64 72 16/32/48
int* 16 32 32 24/64 72 16/32/48
int(*)() 16 16 16/64 64 576 16/32/48
Some machines have more than one possible size for a given type.
This can depend both on the compiler and on various compile-time
flags.
The *size* of an object does not guarantee the *precision* of that
object. In particular, the Cray-2 may use 64 bits to store an |int|,
but a |long| cast into an |int| and back to a |long| may be truncated
to 32 bits.
;-D on ( Clint "programmer" Eastwood: "Port *this*! ) Pardo
--
pardo at cs.washington.edu
{rutgers,cornell,ucsd,ubc-cs,tektronix}!uw-beaver!june!pardo
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