Sender: jlopes AT fc DOT up DOT pt
Message-ID: <378124C2.FFD900DD@fc.up.pt>
Date: Mon, 05 Jul 1999 17:33:54 -0400
From: =?iso-8859-1?Q?Jo=E3o?= Manuel Viana Parente Lopes <jlopes AT fc DOT up DOT pt>
Organization: Faculdade de =?iso-8859-1?Q?Ci=EAncias?=
X-Mailer: Mozilla 4.6 [en] (X11; I; Linux 2.2.3 i686)
X-Accept-Language: en
MIME-Version: 1.0
To: pgcc AT delorie DOT com
Subject: Problem in Mod() Calculation
Content-Type: text/plain; charset=iso-8859-1
X-MIME-Autoconverted: from 8bit to quoted-printable by caserver.fc.up.pt id RAA14022
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id MAA21709
Reply-To: pgcc AT delorie DOT com

Hello,
I've found some strange thing in pgcc-g77 compiler,
When I do something like:
    program teste
    integer k
    do k = 127,131
        write(6,*) k,mod(k,32), k - k/32*32
      enddo
      end

    I obtain,

 127 31 31
 128 0 0
 129 -31 1  -> That's a silly thing, in mod() calculation!!!
 130 -30 2
 131 -29 3

    I had solved the problem making the calculation by hand....
    In egcs-1.0.3 release, I don't have this problem...
Thank's

Joćo Lopes