Author: Robert Hyatt
Date: 22:20:11 01/12/03
Go up one level in this thread
On January 13, 2003 at 00:43:51, Miguel A. Ballicora wrote: >On January 12, 2003 at 22:40:57, Robert Hyatt wrote: > >>On January 12, 2003 at 02:13:57, Miguel A. Ballicora wrote: >> >>>On January 11, 2003 at 19:26:43, Robert Hyatt wrote: >>> >>>>On January 11, 2003 at 16:44:26, Miguel A. Ballicora wrote: >>>> >>>>>On January 11, 2003 at 11:40:00, Robert Hyatt wrote: >>>>> >>>>>>What do you suppose will happen when we have 64 bit machines with 128 bit >>>>>>integers? Care to guess what that will do to portability when you try to >>>>>>send binary files around between a 32 bit and a 64 bit architecture? Then >>>>>>you might begin to see _the_ problem with the data types as they exist. >>>>> >>>>>To send binary files portably you have to do it byte by byte, so it is the same >>>>>no matter what system you use. You cannot send an int32 as a block, that is not >>>>>portable at all no matter what system you use. >>>> >>>>Sure it is. It is only non-portable on machines with different endianess. >>> >>>It is not portable on machines with different endianess, so sure it is not >>>portable. >> >> >>At least on _one_ machine, I can't write a file in one language, and read it >>in C, with reliability. Particularly if there are bytes/words with groups of > >Portability on the same machine is not portability. So you don't apply "portability" to "data"? My books do. > >>bits that mean different things. I can't use bit-fields for that as on one >>machine bitfields might start at one end, on another they start at the other >>end. > >I haven't mentioned bitfields to do this. > >Miguel I'm just pointing out YAW (yet another weakness) in the standard that isn't a standard. Seems stupid to write a standard but leave things "open" when they could be clearly defined. What would be the harm in saying bitfields start at the LSB and go up? Chars are signed by default? Etc... Not much of a "standard" when major points are "left to the implementation".
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.