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Date: Thu, 6 Jan 2005 16:07:11 +0000
From: Roger Leigh <roger DOT leigh AT epictechnology DOT co DOT uk>
To: cygwin AT cygwin DOT com
Subject: Bug: atof() can't parse "NaN"
Message-ID: <20050106160711.GA5621@epictechnology.co.uk>
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Hi folks,

While fixing up glib-2.6.0 to build, I found a failure in the
floating-point tests.  This is seemingly because atof() is bust.
This is a trivial example:


/* for NAN and INFINITY */
#define _ISOC99_SOURCE

#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <ieeefp.h>

int 
main ()
{
  double our_nan;

#ifdef NAN
  our_nan = NAN;
#else
  /* Do this before any call to setlocale.  */
  our_nan = atof ("NaN");
#endif
  assert (isnan (our_nan));

  return 0;
} 


When I run this (current net release) the assert fails, and it
segfaults.


Regards,
Roger

-- 
Roger Leigh

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