Re: cint problem

Fons Rademakers (Fons.Rademakers@cern.ch)
Fri, 09 Oct 1998 13:21:28 +0200


Hi Christian,

seems to be some problem with the handling of operator<<(i+j).
The following lines work ok:

unsigned int k =3D i + j;
cout << "i =3D " << i << ",j =3D " << j << ", i+j =3D " << k << endl;
printf("i =3D %u, j =3D %u, i+j =3D %u\n", i, j, i+j);

I think Masaharu (the author of CINT) will get back to you soon.

Cheers, Fons.

Christian Guenther wrote:
> =

> Hello,
> I'm just evaluating cint for my own personal use and I found some reall=
y
> strange behaviour, as the following trivial program demonstrates.
> =

> Do you have any ideas ?
> =

> Thank you in advance!!
> =

> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> =

> -> cat /tmp/t1.cc
> #include <iostream.h>
> =

> main() {
> =

> unsigned int i =3D 2087856000;
> unsigned int j =3D 126230400;
> =

> cout << "i =3D " << i << ",j =3D " << j << ", i+j =3D " << i+j << end=
l;
> =

> }
> =

> -> g++ -Wall -pedantic /tmp/t1.cc -o /tmp/t1
> -> /tmp/t1
> i =3D 2087856000,j =3D 126230400, i+j =3D 2214086400
> =

> -> cint /tmp/t1.cc
> i =3D 2087856000,j =3D 126230400, i+j =3D -2080880896
> =

> -> cint -v
> =

> cint : C/C++ interpreter
> Copyright(c) : 1991~1996 [hp] Hewlett-Packard-Japan
> Author : Masaharu Goto (gotom@jpn.hp.com)
> Copyright(c) : 1995~1998 Masaharu Goto (MXJ02154@niftyserve.or.jp)
> revision : 5.13.74, Sep 19 1998 by M.Goto
> =

> ...
> =

> -----------------------------------------------------------------------=

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> Christian G=FCnther                    __o    E-Mail:  cg@uebemc.siemen=
s.de
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82
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Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland Phone: +41 22 7679248 E-Mail: Fons.Rademakers@cern.ch Fax: +41 22 7677910