From:	Gesam <vsamou AT cict DOT fr>
Newsgroups:	comp.os.msdos.djgpp
Subject:	pb with long double
Date:	Thu, 14 Aug 1997 00:54:26 +0200
Lines:	21
Message-ID:	<33F23B22.6710@cict.fr>
NNTP-Posting-Host:	vsamou.cict.fr
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I am a french student and I have little problem with GCC
Here is my program :

#include <math.h>
main()
{
 long double a;
 a=PI;
 printf("%22.20Lf",a);
}

After I use GCC : gcc myprog.c -o myprog.exe -lm 
The result is 3.14159265358979311600 
                               wrong
There is only 15 good digits instead of 19 
( PI is defined with more than 20 digits im math.h )

With Borland Turbo C this problem doesn't exist ; there is 
19 good digits. 

Could you help me ?

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