Neil Devlin wrote: > As I only use a memcpy(..) to copy the structure accross instead of each > individual items, will this cause a problem server runs on Win2000, and > client runs on a XP 64 bit,or XP?
It doesn't relate to the OS; it relates to the compiler. As long as your compile environments are similar/identical, no, you won't have any problems. On 64-bit systems, however (both IA64 and x86-64) the situation is different. On those system, data type sizes are different, for example, a long is 64 bits. Therefore, the overall structure size would differ. If you're targetting x86-64, a simple solution is compiling your app to produce a 32-bit binary, which the OS would run just fine (IIRC there was something called WoW64 in this regard). But if you need real 64 bit code, you can only design a data transmission standard which would make sure different sized data gets converted properly before transmission/after reception. You can use well known data transfer formats (like XML) or design your own. -- Ehsan Akhgari Farda Technology <http://www.farda-tech.com/> If Java had true garbage collection, most programs would delete themselves upon execution. - Robert Sewell _______________________________________________ msvc mailing list msvc@beginthread.com See http://beginthread.com/mailman/listinfo/msvc_beginthread.com for subscription changes, and list archive.
