Path: utzoo!attcan!uunet!super!udel!gatech!bloom-beacon!oberon!panarea.usc.edu!english From: english@panarea.usc.edu (Joe English) Newsgroups: comp.lang.c Subject: Re: Rearranging FP expressions Summary: unary + operator? Message-ID: <12393@oberon.USC.EDU> Date: 27 Sep 88 03:56:06 GMT References: <4700017@m.cs.uiuc.edu> Sender: news@super.ORG Reply-To: english@panarea.usc.edu (Joe English) Organization: University of Southern California, Los Angeles, CA Lines: 22 In article <4700017@m.cs.uiuc.edu> wsmith@m.cs.uiuc.edu writes: > >I realize this topic has been beat to death and its probably too late >for the ANSI C committee to do anything about it, but here's a suggestion >anyway. > >The problem: How can C know when it is safe to rearrange expressions, > especially floating point expressions. > Didn't I read somewhere that the unary + operator can be used to suppress rearrangement of the enclosed expression? (as in +(a + b - c + d) ) This could be ANSI, or it could just be another Borland or gcc extension that I remember seeing. Which reminds me: are there any good books out yet giving a complete description of the dpANS? I wish K&R had waited another coupla months before they published Edition 2... /|/| -----< | | Joe English O \|\| ARPA: english%lipari@oberon.usc.edu