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Newsgroups: comp.lang.c
Subject: Simple atof() question
Message-ID: <1214@caslon.cs.arizona.edu>
From: armstron@cs.arizona.edu (Jim Armstrong)
Date: 19 Mar 91 15:52:35 GMT
Distribution: na
Organization: U of Arizona CS Dept, Tucson
Lines: 26


How can I get atof() to return a float instead of a double? 
When I run this simple program I get n = 37.549999 instead of
n = 37.55.  What am I doing wrong?


#include <stdio.h>

main()
{

double atof();
char buf[10];
float n;

strcpy(buf,"37.55");
n = (float) atof(buf);
printf("n = %f\n",n);

}


-- 
Jim Armstrong			  "The nonpayment and subsequent abuse of
armstron@cs.arizona.edu		  socially powerless athletes is simply a
{uunet|noao}!arizona!armstron     form of modern-day slavery" --Rick Telander