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comp.lang.c++

anonymous ctor?

.rhavin grobert

12/6/2008 12:29:00 AM

in anonymous unions you can overload the operators
(at least, it seems to work with my compiler;-), but ...

union {
//whatever
operator= (...);
} foo;

.... is there a way to overload the ctor?
3 Answers

ebony.soft

12/6/2008 7:49:00 AM

0

On Dec 6, 3:28 am, ".rhavin grobert" <cl...@yahoo.de> wrote:
> in anonymous unions you can overload the operators
> (at least, it seems to work with my compiler;-), but ...
>
> union {
>   //whatever
>   operator= (...);
>
> } foo;
>
> ... is there a way to overload the ctor?

Hi .rhavin
According to C++ standard draft SC22-N-4411, Chapter 9, section 9.5
[class.union] paragraph 2:
An anonymous union shall not have function members.
You can't have an anonymous union with member functions let alone to
overload constructors.

Regards,
Saeed Amrollahi

jason.cipriani@gmail.com

12/6/2008 6:57:00 PM

0

On Dec 5, 7:28 pm, ".rhavin grobert" <cl...@yahoo.de> wrote:
> in anonymous unions you can overload the operators
> (at least, it seems to work with my compiler;-), but ...
>
> union {
>   //whatever
>   operator= (...);
>
> } foo;
>
> ... is there a way to overload the ctor?

You can't have an anonymous union with member functions, even if your
particular compiler lets you do it (it shouldn't).

The simple solution may be to not use an anonymous union.

union FooUnion {
//whatever
FooUnion ();
operator= (...);
} foo;

Jason

mirjam

6/19/2014 7:44:00 PM

0

On Thursday, June 19, 2014 6:30:44 PM UTC+3, Giborah wrote:
> On Wednesday, June 18, 2014 8:58:50 PM UTC-7, mirjam wrote:

OK just wanted to help
mirjam


>
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