From: Daniel Frey (daniel.frey_at_[hidden])
Date: 2003-04-16 08:39:02
Reece Dunn wrote:
> If I understand the ISO/IEC C++98 standard correctly:
>  const T & ref;
> means that the data type referred to by ref is constant (i.e. you cannot
> modify its internal state).
>  T & const ref;
> means that the *reference* is constant.
Nope, it's the same as 
>  const T & const ref;
> both reference and data type are constant.
This is like a double const: 'const const T& ref'. References are
*always* constant, their data may be constant if 'const' is present. I
think you just mixed up pointers and references as anything you said
would be correct if you replace the reference by a pointer.
(And maybe some compilers have/had "extensions" that allow references to
be treated like pointers in this area, but that is not ISO/IEC C++...)
-- Daniel Frey aixigo AG - financial training, research and technology Schloß-Rahe-Straße 15, 52072 Aachen, Germany fon: +49 (0)241 936737-42, fax: +49 (0)241 936737-99 eMail: daniel.frey_at_[hidden], web: http://www.aixigo.de
Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk