Message-ID: <20010508123935.685.qmail@web6304.mail.yahoo.com>
Date: Tue, 8 May 2001 14:39:35 +0200 (CEST)
From: =?iso-8859-1?q?Florent=20Georges?= <darkman_spam AT yahoo DOT fr>
Subject: Bug in gcc or in my install ?
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hello,

In a first time, I prefer to think that it's a bug in
my install, instead
in gcc, but it's quite strange.

I've wrote a {\tinytiny} program which run correctly
when it's compiled with

    gcc -o test.exe test.c -lm

but doesn't with

    gcc -o test.exe test.c -lm -ansi


Here's the source :

    #include <stdlib.h>
    #include <stdio.h>
    #include <math.h>

    int main (void)
    {
      float next = 0.0;
      float prev = 0.0;

      printf("%e \n", next);

      while (prev < 1e-40)
        {
          next = nextafterf(prev, 1.0);        /* the
func I test */
          printf("%e \n", next);
          prev = next;
        }

      return EXIT_SUCCESS;
    }


and here's the output when I compile with the '-ansi'
flag :

    c:\djgpp\home\misc\libm\>test.exe
    0.000000e+00 
    1.638400e+04 


When I don't specify the '-ansi' flag, the program run
as we're waiting for
(not very interesting :p); dus I suppose that the libm
is ok.

I use djgpp with gcc 2.95.3.


--drkm


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