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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,5697899e4423465c X-Google-Attributes: gid103376,public From: Keith Thompson Subject: Re: null pointer representation (was: Boolean Representation) Date: 1998/09/28 Message-ID: #1/1 X-Deja-AN: 395527602 Cache-Post-Path: wagasa.cts.com!kst@king.cts.com References: <6umkbn$pv5$1@nnrp1.dejanews.com> Organization: CTS Network Services Newsgroups: comp.lang.ada Date: 1998-09-28T00:00:00+00:00 List-Id: dewarr@my-dejanews.com writes: [...] > Certainly though, you are right, Null_Address can be assumed to be all > zero bits in practice, but not Null. Why is it safe to assume that Null_Address is all zero bits? I'd normally expect it to have the same representation as a null pointer, though of course that's not guaranteed either. (In any case, since Null_Address is conveniently declared in System, there's no need to assume anything about how it's represented.) -- Keith Thompson (The_Other_Keith) kst@cts.com <*> Qualcomm, San Diego, California, USA It takes a Viking to raze a village.