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Subject: c/10844: Wrong computation on nan initialized vectors.
Date: Sun, 18 May 2003 17:26:00 -0000	[thread overview]
Message-ID: <> (raw)

>Number:         10844
>Category:       c
>Synopsis:       Wrong computation on nan initialized vectors.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Sun May 18 17:26:00 UTC 2003
>Originator:     Christian Szegedy
>Release:        gcc (GCC) 3.2.2
gentoo Linux
The following program outputs nan istead of 0:

#include <math.h>

int main()
   int n = 10;
   int i;
   double *w= (double*)malloc(sizeof(double)*n);
   double x;

   for( i=0 ; i<n ; i++ ) { w[i] = nan(""); }

   w[0] = .0;
   w[0] += .0;

   return 0;



             reply	other threads:[~2003-05-18 17:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-18 17:26 szegedy [this message]
2003-05-18 17:49 ehrhardt
2003-05-19 10:17 Christian Szegedy
2003-05-19 12:01 ehrhardt
2003-05-19 15:06 Christian Szegedy

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