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From: kgorlen@alw.nih.gov (Keith Gorlen)
Newsgroups: comp.lang.c++
Subject: Re: form() is broken
Message-ID: <1472@nih-csl.nih.gov>
Date: 11 May 91 01:10:35 GMT
References: <1991May10.200911.28671@jpl-devvax.jpl.nasa.gov>
Sender: news@nih-csl.nih.gov
Reply-To: kgorlen@alw.nih.gov (Keith Gorlen)
Organization: National Inst. of Health
Lines: 27

In article <1991May10.200911.28671@jpl-devvax.jpl.nasa.gov>, russb@alexa.JPL.NASA.GOV (Russ Brill) writes:
|> >The form function in C++, i.e.:
|> >
|> >   cout << form(<control-string>,<args>) ;
|> >
|> >seems to be broken.  Let p be a pointer to a vector of floats.
|> >
|> >  cout << p[1];    // this works
|> >
|> >   cout << form("%f",p[1]) ;   // IOT Trap (Core dumped)
|> >
|> 
|> We've also had problems with form().  Specifically, something like
|> 
|> 	form("%-20.10s","abc")
|> 
|> compiles just fine, but it generates 20 blanks.  This is on Sun's
|> cfront 2.0 on a Sparc (works just fine on our Sun 3's).

Try compiling the iostream libraries with -DVSPRINTF=vsprintf.  form()
uses non-portable code that doesn't work on a SPARC otherwise.

-- 
	Keith Gorlen			phone: (301) 496-1111
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