RE: [Mingw-users] I'm trying to port some code from VC++ to Mingw

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: min...@li... 
> [mailto:min...@li...] On Behalf Of 
> Garrett Serack
> Sent: Friday, June 21, 2002 12:52 AM
> To: Min...@li...
> Subject: Re: [Mingw-users] I'm trying to port some code from 
> VC++ to Mingw
> 
> 
>                                                               
>             
> >
> > I'll try it out on the Intel compiler next, and see what 
> that's doing.
> >
> Yep, Intel's 6.0 compiler works fine too.


Ok let me summarize. At first as another said the alpha a() is a
function declaration depending on context. new alpha() is a call to the
default constructor but is meaningless.


Second i made a mistake talking about that the mistake is due to a
possible optimisation of the style

A a=x; to get A a(x); It happens some times, but the whole thing must
*behave* as if a temporary is created and is copied, so there can be no
ambiguity on this, it is a system's responsibility of how to get things
done.


The problem is due to ptr(&ptr) and is dangerous to point temporaries
with simple references (must produce at least some diagnostic).
The proper solution is to make it a const reference:

ptr(const ptr &);


It is not a GCC problem.


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys