Re: [boost] [variant] match()

On January 7, 2015 3:41:04 AM EST, Eelis wrote:

Boost.Variant provides access through get() and visitors, but in C++11 we can do so much better! :)

For a boost::variant, the attached small utility function match() lets you write:

match(v, [](A & a){ cout << "it's a A!"; } [](B & b){ cout << "oh, a B!"; } [](C & c){ cout << "ah yes, a C!"; });

Return values are supported. I think this really belongs in Boost. It makes variants much more usable.

That looks nice, but I don't see how it will work for, say, variant,int>. What's the common type for those types? ___ Rob (Sent from my portable computation engine)