Re: [boost] boost::variant and "Current Approach: TemporaryHeapBackup" vs "An Initial Solution: Double Storage"

Subject: Re: [boost] boost::variant and "Current Approach: TemporaryHeapBackup" vs "An Initial Solution: Double Storage"
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-09-30 18:00:59

AMDG

Peter Foelsche wrote:
> also it would be nice if one could somehow deduce the integer value 
> returned from which():
>
>
> typedef boost::variant<std::string, int, double> CVariant;
>
>
> CVariant("test").which() == CVariant::ID<std::string>::value
> CVariant(1.0).which() == CVariant::ID<double>::value

boost::mpl::index_of<CVariant::types, std::string>::value

In Christ,
Steven Watanabe