hana/example/ext/boost/fusion/deque.cpp
2017-01-07 14:14:18 -08:00

36 lines
1008 B
C++

// Copyright Louis Dionne 2013-2017
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#include <boost/hana/assert.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/ext/boost/fusion/deque.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/transform.hpp>
#include <boost/fusion/include/deque.hpp>
#include <boost/fusion/include/make_deque.hpp>
#include <string>
namespace fusion = boost::fusion;
namespace hana = boost::hana;
struct Fish { std::string name; };
struct Cat { std::string name; };
struct Dog { std::string name; };
int main() {
fusion::deque<Fish, Cat, Dog> animals{{"Nemo"}, {"Garfield"}, {"Snoopy"}};
hana::front(animals).name = "Moby Dick";
auto names = hana::transform(animals, [](auto a) {
return a.name;
});
BOOST_HANA_RUNTIME_CHECK(hana::equal(
names,
fusion::make_deque("Moby Dick", "Garfield", "Snoopy")
));
}