Article View: comp.std.c
Article #1382Re: Questions about NCEG
From: Doug Gwyn
Date: Mon, 04 Jun 1990 16:38
Date: Mon, 04 Jun 1990 16:38
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In article <KINGDON.90Jun3221716@pogo.ai.mit.edu> kingdon@pogo.ai.mit.edu (Jim Kingdon) writes: > No, any use of NaNs and Infinities lies in the realm of undefined or > implementation-defined behavior, and thus is not constrained by the > C standard. >Unless I'm misreading something, in the "C" locale, ... I think you're reading the standard correctly. My point was that "reading back in" a NaN or Infinity is beyond the scope of the standard, because "writing it out" is beyond the scope. It is true that "NaN" would not be an appropriate way to externally represent a NaN, because of the argument you gave (strtod is well- defined as not parsing those characters as a number).
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<1990May31.223436.23066@twinsun.com> <13039@smoke.BRL.MIL> <KINGDON.90Jun3221716@pogo.ai.mit.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!ucsd!ames!haven!ncifcrf!nlm-mcs!adm!smoke!gwyn From: gwyn@smoke.BRL.MIL (Doug Gwyn) Newsgroups: comp.std.c Subject: Re: Questions about NCEG Message-ID: <13047@smoke.BRL.MIL> Date: 4 Jun 90 16:38:39 GMT References: <1990May31.223436.23066@twinsun.com> <13039@smoke.BRL.MIL> <KINGDON.90Jun3221716@pogo.ai.mit.edu> Organization: U.S. Army Ballistic Research Laboratory, APG, MD. Lines: 12