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From: leo@atcmp.nl (@ Leo Willems)
Newsgroups: comp.lang.c++
Subject: Re: bug in iostream?
Summary: no it is not a bug
Keywords: iostream format
Message-ID: <879@atcmpe.atcmp.nl>
Date: 7 Feb 91 16:36:48 GMT
References: <875@atcmpe.atcmp.nl>
Organization: AT Computing, Nijmegen, The Netherlands
Lines: 49

In article <875@atcmpe.atcmp.nl>, leo@atcmp.nl (@ Leo Willems) writes:
> When compiling the next program under cfron ports 2.0 and 2.1 the output
> in both cases is not what I expect it to be:
> 
> #include <iostream.h>
> 
> main()
> {
> 	cout.setf(ios::showpoint);
> 	cout.precision(3);
> 
> 	cout << 0.1 << endl << 1.1 << endl;
> }
> 
> Output:
> 
> 0.100
> 1.10
> 
> The extra 0 from 0.1 is a little too much :-(
> 
> Is this a known bug, or am I wrong? In both cases, is there a fix?

Since a while I think it is not a bug, I didn't understand ios::precision().

What I want is this: given some floats I want them to be inserted in a stream
in a columnwise fashion (like printf "%8.3f") i.e.:

  .... some statements setting the format

  cout <<setw(8) << 123.45 << " " <<setw(8) <<  121.1 << endl;
  cout <<setw(8) << 23.45 << " " <<setw(8) <<  21.1 << endl;
  cout <<setw(8) << 0.1 << " " <<setw(8) <<  1.0 << endl;

giving:  
 123.450  121.100
  23.450   21.100
   0.100    1.000

Is this possible with ios formatting capabilities?

Thanks

Leo
-- 
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