Re: [Boost-users] Inconsistent with variant with bool

Subject: Re: [Boost-users] Inconsistent with variant with bool
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2010-05-22 12:01:55

AMDG

Robin wrote:
> I'm facing a inconsistent behavior with Variant when bool is defined. The below 
> code will return i as 0 
>
> typedef boost::variant <int> VariantType;
>
> VariantType variant;
> int i = boost::get <int> (variant));  // default to 0
>
> If I set a bool in the variant
>
> typedef boost::variant <bool, int> VariantType;
>
> VariantType variant;
> int i = boost::get <int> (variant));   // this throws fail get
>
> Is it intended behavior?
>   

Yes. A default constructed variant contains the first variant type,
so your variant contains a bool, not an int.

In Christ,
Steven Watanabe