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Mail Archives: djgpp/2000/03/20/17:20:09

Message-ID: <38D68EC3.A651AF90@brandonsd.mb.ca>
From: N J Chackowsky <chackowsky AT brandonsd DOT mb DOT ca>
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: Manipulators, where are they?
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Date: Mon, 20 Mar 2000 20:35:51 GMT
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This works:
// Program 2.6 Experimenting with floating point output
#include <iostream>
#include <iomanip>
using namespace std;
int main ()
{
 float value1 = 0.1f;
 float value2 = 2.1f;
 value1 -= 0.09f;                       // Should be 0.01
 value2 -= 2.09f;                       // Should be 0.01
 cout << setiosflags(ios::fixed | ios::showpoint | ios::right);   // NB
 cout << setprecision(14);     // Change to fixed notation
 cout << value1 - value2 << endl;       // Should output zero
 cout << setiosflags(ios::scientific);				  // NB
 cout << setprecision(5) ; // Return to scientific notation
 cout << value1 - value2 << endl;       // Should output zero
 return 0;
}

RoadRaat wrote:
> 
> Even though I include iomanip in my program, I get a message that 'fixed' or
> 'scientific' is an undeclared identifier.
> 
> I verified that iomanip is contained in my /lib directory.  Why doesn't this
> work?
> 
> #include <iomanip>
> etc......
> cout << fixed << area << endl;
> 
> area is a computed value.  The code successfully compiles under MS Visual C++.
> Why won't it work with DJGPP?
> 
> RoadRaat

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