CODEWITHSUNDEEP
c++boostc++14boost-variantstd-variant
The Quantum Physicist
The Quantum Physicist

Reputation: 26276

Is there boost::visit like std::visit, for boost::variant?

With C++14, I'm using boost::variant as a way of compile-time polymorphism:

using MyType = boost::variant<A, B>;

Both classes have a method sayHello(). I'd like to call:

MyType obj = ...; // either A() or B()
boost::visit([](auto&& o) { o.sayHello();}, obj);

I know the static_visitor way, but I find it cumbersome. Is there a boost::visit like std::visit that I'm missing? If not, why doesn't it exist?

Minimal example here.

Upvotes: 10

Views: 2715

Answers (1)

StoryTeller - Unslander Monica
StoryTeller - Unslander Monica

Reputation: 170084

There is, but it's called boost::apply_visitor. Its behavior in relation to boost::variant is the as std::visit's to std::variant.

Upvotes: 9

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