From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,3ccb707f4c91a5f2 X-Google-Attributes: gid103376,public From: "Norman H. Cohen" Subject: Re: Portability of Arithmetic (was: Java vs Ada 95) Date: 1996/10/21 Message-ID: <326BBD70.2131@watson.ibm.com>#1/1 X-Deja-AN: 190997995 references: <325D7F9B.2A8B@gte.net> <1996Oct15.174526.1@eisner> <32679C86.2FB8@watson.ibm.com> <3268573F.41C6@cray.com> content-type: text/plain; charset=us-ascii organization: IBM Thomas J. Watson Research Center mime-version: 1.0 reply-to: ncohen@watson.ibm.com newsgroups: comp.lang.ada x-mailer: Mozilla 3.0 (Win95; I) Date: 1996-10-21T00:00:00+00:00 List-Id: Robert Dewar wrote: > I think it would be a GOOD THING if all Ada compilers (and all C compilers > for that matter) supported 64-bit integers. > > The interesting thing is that obviously there has not been too much pressure > in the past for this, since almost all Ada 83 compilers and almost all C > and C++ compilers for 32-bit machines do NOT support 64-bit integers, even > though it is really pretty simple to do. So from that I conclude that at > least in the past it has not been a major requirement. In the past, there were no machines with 64-bit address spaces; now there are several. As Robert is well aware, several vendors of 64-bit machines have sought to establish a common set of rules about how the C integral types should correspond to 8-bit, 16-bit, 32-bit, and 64-bit integers on 64-bit machines. -- Norman H. Cohen mailto:ncohen@watson.ibm.com http://www.research.ibm.com/people/n/ncohen