Re: [boost] An open typeswitch using lambdas

Subject: Re: [boost] An open typeswitch using lambdas
From: Evgeny Panasyuk (evgeny.panasyuk_at_[hidden])
Date: 2013-11-29 15:43:02

29.11.2013 22:31, Sumant Tambe:
> template <class Poly>
> void test_poly(Poly& p)
> {
>    match(p)(
>      [](int i)                  { std::cout << "int = "    << i << "\n"; },
>      [](double d)               { std::cout << "double = " << d << "\n"; },
>      [](const std::string &s)  { std::cout << "string = " << s << "\n"; },
>      [](std::ostream &o)        { std::cout << "found ostream"  << "\n"; }
>    );
> }
>

Just for your information, there is Boost.Functional/OverloadedFunction 
library - 
http://www.boost.org/doc/libs/1_55_0/libs/functional/overloaded_function/doc/html/index.html

It has make_overloaded_function template function 
http://www.boost.org/doc/libs/1_55_0/libs/functional/overloaded_function/doc/html/boost/make_overloaded_function.html 
- which is somewhat similar (not sure if it provides required typedef 
for result_type).

-- 
Evgeny Panasyuk