Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!rpi!leah!rds95
From: rds95@leah.Albany.Edu (Robert Seals)
Newsgroups: comp.unix.aix
Subject: predefined macros and "MAXFLOAT"
Keywords: xlc, defines
Message-ID: <3583@leah.Albany.Edu>
Date: 29 Aug 90 17:51:04 GMT
Organization: The University at Albany, Computer Services Center
Lines: 26


Hello,

<math.h> defines MAXFLOAT as (*((float *) (&SFPMAX))), and SFPMAX
is an extern unsigned int. So, it's impossible to do something like

const float        lims[] = {1.0, 2.5, MAXFLOAT};

because MAXFLOAT isn't constant.

I suppose there's nothing really wrong with this, but it kinda
bugs me that it's a variable. What do YOU think? Should it
be just #defined to be the real value, or is this tricky business
better?

And another thing, I can't find anyplace (even under "Predefined Macros"
in the info explorer) what sort of groovy things are defined by the
compiler - there must be something like "AIX" or "(C) IBM Corp" or
something, eh?

rob
-- 
--------------------------------------------------------------------------------
"Unix has its weak points, but its file system is not one of them." -Chris Torek
  rob rob@asrcmv.albany.edu or rds95@leah.albany.edu or rob@dinner.albany.edu
		I have no idea what the uucp path to me is.