From: "Kirk Hartstrom" <gods_character AT yahoo DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <38c484bb DOT 0 AT news DOT qnet DOT com>
Subject: Re: setprecision() c++
Date: Thu, 9 Mar 2000 01:38:10 -0800
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

this code worked for me

cout.setf(ios::fixed);
cout << setprecision(2) << myFloatNumber << endl;

I guess it was that cout.setf(ios::fixed) setting that changes
setprecision() from significant digits to decimal places,  alliteratively I
also tried

#include<stdio.h>
main()
....
printf("My number %.2f ", myFloatNumber);

this bit of c code worked also in my c++ program so now I know two ways to
do it.
 Thanks for the Help. Kirk

> try adding these lines before you set the precision
>
> cout.setf(ios::fixed,ios::floatfield);
> cout.setf(ios::showpoint);
>
> cout<<setprecision(2)<<number<<endl;
Kirk Hartstrom <gods_character AT yahoo DOT com> wrote in message
news:38c484bb DOT 0 AT news DOT qnet DOT com...
> Hi there!  I've been programming about a week in c++ and was wondering if
> any of you could answer a question for me.
>
> I want to display a dollar amount (#.##) with two numbers after the
decimal
> point.  My book says I can use something like
> cout << setprecision(2) << number_to_display << endl;
>
> but setprecision() works on significant digits, so 23 with setprecision(2)
> shows only 23, and 1 shows as 1.0.
>
> I have a number to display 0.096875 (the tax for something) and when I use
> setprecision(1) I get "0.1" so I set it to 2, and get "0.097" ! I can't
get
> it to two digits.  If there is a better way please tell me.  Maybe there
is
> a different function I should use.  I'm pretty sure my stuff is uptodate
> because I downloaded it just last week.
>
> Thanks again for your help.
> Kirk
>
>