hana/example/ext/std/array/comparable.cpp
2017-01-07 14:14:18 -08:00

25 lines
723 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/std/array.hpp>
#include <boost/hana/not_equal.hpp>
#include <array>
namespace hana = boost::hana;
constexpr std::array<int, 4> xs = {{1, 2, 3, 4}};
constexpr std::array<int, 5> ys = {{1, 2, 3, 4, 5}};
// arrays have different constexpr contents; result is a constexpr bool
static_assert(hana::equal(xs, xs), "");
// arrays have different lengths; result is an integral_constant
BOOST_HANA_CONSTANT_CHECK(hana::not_equal(xs, ys));
int main() { }