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Mail Archives: cygwin/2005/03/26/13:30:21

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From: "Isselmou dellahy" <disselmou AT hotmail DOT com>
To: cygwin AT cygwin DOT com
Subject: fscanf "%lf" misses the "-" sign in "-5.0e+00" on cygwin 1.5.13-1
Date: Sat, 26 Mar 2005 12:30:09 -0600
Mime-Version: 1.0
X-OriginalArrivalTime: 26 Mar 2005 18:30:09.0824 (UTC) FILETIME=[D7620A00:01C53231]

Hi,
I'm using cygwin 1.5.13-1 and gcc version 3.3.3 to compile the following 
foo.C :

#include <stdio.h>
#include <stdlib.h>
int main()
{
  FILE *ff = fopen( "foo.dat", "r");
  double x;
  int n = fscanf( ff, "%lf", &x);
  printf( "n=%d x=%lf\n", n, x);
  fclose(ff);
  return 0;
}

foo.dat contains the single text line:

-5.0e+00

The compiler does'nt show any warning and when executed prints:

n=1 x=5.000000

missing the "-" sign.

As soon as you replace the line in foo.dat by "-5.0e+01", thing works better 
and the sign shows up.
When you run the executable on cygwin 1.5.12-1 it works fine.
Am I doing something wrong or is this a bug in some new dlls within cygwin 
1.5.13-1 ?
Thank you for any hint/help
--
Isselmou

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