Re: [boost] 3-state boolean type

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-08-02 12:31:31

From: "Rob Stewart" <stewart_at_[hidden]>
> From: "William E. Kempf" <williamkempf_at_[hidden]>
> >
> > bool b();
> >
> > initializes b to false.  So I'd think the  default ctor should
initialize
> > the state to false.
>
> That doesn't invoke the default ctor.  You'd have to do something like
this:
>
>    bool b(bool());
>
> to get what you're referring to.

Language lawyer day on boost!

bool b(); // function, no arguments, returns bool

bool b(bool()); // function, one argument bool (*) (), returns bool

bool b = bool(); // value-initialized bool
bool b((bool())); // ditto