Subject: Re: [boost] [config] C++0X Compiler doesn't support classes with constructors in unions
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2011-02-23 07:20:37
Nevin Liber wrote:
> On 22 February 2011 16:06, Vicente Botet
> <vicente.botet_at_[hidden]> wrote:
> > is there a macro that can be tested to know if a compiler
> > doesn't support classes with constructors in unions?
> What compiler(s) implement this as an extension?
It isn't an extension but a feature of C++0x.
> It isn't allowed in C++03 either: "An object of a class with a
> non-trivial constructor, a non-trivial copy constructor, a
> non-trivial destructor, or a non-trivial copy assignment
> operator cannot be a member of a union, nor can an array of
> such objects."
That restriction no longer applies in C++0x.
Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP http://www.sig.com
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