Path: utzoo!mnetor!uunet!husc6!rutgers!ucla-cs!zen!ucbvax!decvax!decwrl!thundr.dec.com!minow From: minow@thundr.dec.com (Martin Minow THUNDR::MINOW ML3-5/U26 223-9922) Newsgroups: comp.lang.c Subject: Ansi C -- no system-specific pre-#defines Message-ID: <8712260015.AA01517@decwrl.dec.com> Date: 26 Dec 87 03:05:00 GMT Organization: Digital Equipment Corporation Lines: 15 In a recent posting, watmath!rbutterworth suggests that noalias could be replaced by a compiler-specific _noalias keyword and a user writing portable code should addd something like #if !defined(_XYZ_COMPILER) # define _noalias /*nothing*/ #endif Unfortunately, the Ansi committee doesn't seem to allow vendor-specific pre-defined variables. I asked specifically for this in my comments to the November '86 Draft Standard and was rejected. The August '87 Draft (section 3.8.8) seems somewhat ambiguous in this matter, however. Martin Minow minow%thundr.dec@decwrl.dec.com decvax!decwrl!dec-rhea!dec-thundr!minow