hana/example/sequence/monad_plus.cpp
2017-01-07 14:14:18 -08:00

28 lines
872 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/append.hpp>
#include <boost/hana/assert.hpp>
#include <boost/hana/concat.hpp>
#include <boost/hana/empty.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/tuple.hpp>
#include <string>
namespace hana = boost::hana;
using namespace std::string_literals;
BOOST_HANA_CONSTANT_CHECK(hana::empty<hana::tuple_tag>() == hana::make_tuple());
static_assert(hana::append(hana::make_tuple(1, '2', 3.3), nullptr)
== hana::make_tuple(1, '2', 3.3, nullptr), "");
int main() {
BOOST_HANA_RUNTIME_CHECK(
hana::concat(hana::make_tuple(1, '2', 3.3), hana::make_tuple("abcdef"s)) ==
hana::make_tuple(1, '2', 3.3, "abcdef"s)
);
}