Re: how can i allocate an objekt with initialization???

[Martin Krischik <martin@krischik.com>]

Dave Thompson wrote:

> On Mon, 06 Dec 2004 14:34:13 +0100, Martin Krischik
> <martin@krischik.com> wrote:
> 
>> > Ole-Hjalmar Kristensen wrote:
>> > the corresponding C++ example should have been:
> 
>> >    a &my_object = b(1);
>> 
>> I have seen this before and I am wondering if it is actualy valid.
>> Because: where is the result of the b(1) constructor call been stored? a&
>> can only hold a reference to retun value.
> 
> In a temporary which persists as long as the reference, 12.2p5.

You live and learn!

> (Aside: auto is the default storage class where it applies, to local
> variables, so does not need to be and usually is not given explicitly.
> Especially since in C++ and C99 'implicit int' is gone and the type
> specifier must be present in the beginning part of a declaration. In
> fact there have been semiserious proposals to 'recycle' the keyword
> 'auto' to a new meaning since its existing one is so unnecessary.)

Having learned pascal and modula 2 before C and C++ I don't consider it
unnecessary. I consider it good for readability. If I see "auto" I know a
variable is declared. If I just see

"some_very_long_something somthing_else_after_a_tiny_space;"

It's not quite as easy to see. 

Martin
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