Article View: comp.std.c
Article #1598Re: constant expressions
From: diamond
Date: Thu, 16 Aug 1990 00:21
Date: Thu, 16 Aug 1990 00:21
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1611 bytes
In article <13555@smoke.BRL.MIL> gwyn@smoke.BRL.MIL (Doug Gwyn) writes: >In article <1923@tkou02.enet.dec.com> diamond@tkou02.enet.dec.com (diamond@tkovoa) writes: >>Yes, section 3.4 says that a constant expression CAN be evaluated during >>translation. It is sufficiently clear that the translator is NOT REQUIRED >>to do so. >Wrong, at least when the translator needs to evaluate the expression in >order to perform the translation. Besides clearly NOT REQUIRING translation-time evaluations, I have also seen clear REASONS for this non-requirement. If your target machine can handle 128-bit ints, your host machine is not required to provide a simulator. "Wrong" appears wrong. >However, a conforming >implementation must ACT exactly as though constant expressions ARE >evaluated in many contexts. Yes, on this we agree -- but it is still a guess. -- Norman Diamond, Nihon DEC diamond@tkou02.enet.dec.com This is me speaking. If you want to hear the company speak, you need DECtalk.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!wuarchive!decwrl!bacchus.pa.dec.com!shlump.nac.dec.com!tkou02.enet.dec.com!diamond From: diamond@tkou02.enet.dec.com (diamond@tkovoa) Newsgroups: comp.std.c Subject: Re: constant expressions Message-ID: <1924@tkou02.enet.dec.com> Date: 16 Aug 90 00:21:41 GMT References: <1916@tkou02.enet.dec.com> <13550@smoke.BRL.MIL> <1923@tkou02.enet.dec.com> <13555@smoke.BRL.MIL> Reply-To: diamond@tkou02.enet.dec.com (diamond@tkovoa) Organization: Digital Equipment Corporation Japan , Tokyo Lines: 21