Author: Robert Hyatt
Date: 11:49:45 09/10/02
Go up one level in this thread
On September 10, 2002 at 13:39:13, Vincent Diepeveen wrote:
>On September 09, 2002 at 23:11:47, Robert Hyatt wrote:
>
>>On September 09, 2002 at 14:05:30, Vincent Diepeveen wrote:
>>
>>>On September 09, 2002 at 13:32:42, Ed Panek wrote:
>>>
>>>use a different compiler. gcc 3.2 or something instead of 5 years old
>>>RH6.
>>>
>>>It's like me blaming m$ for bugs in windows NT 4.0 which is from 1995.
>>
>>
>>Same here. This is _not_ a compiler bug. It is a simply an artifact of
>>using floating point math. Well-known to those of us that have done this
>>very much.
>
>try the example i gave for the intel c++ compiler.
>
It works fine for me:
Here is the simple source:
#include <stdio.h>
int myfunct(float a,float b,float c) {
return((int)(a*b+c));
}
main () {
int myfunct(float,float,float);
float a=2.5, b=4.0, c=12.0;
int result;
result=myfunct(a,b,c);
printf("a=%f b=%f c=%f\n",a,b,c);
printf("result=%d\n",result);
}
compiled like this:
icc -o tstx tstx.c
And executed:
crafty% ./tstx
a=2.500000 b=4.000000 c=12.000000
I don't see any problem whatsoever.
in fact, several here are using that compiler for numerical floating point
applications and they have tested the accuracy very carefully...
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.