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hana/test/type/alignof.cpp
2022-10-20 23:18:13 -04:00

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// Copyright Louis Dionne 2013-2022
// 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/integral_constant.hpp>
#include <boost/hana/type.hpp>
namespace hana = boost::hana;
struct T { };
int main() {
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::alignof_(T{}),
hana::size_c<alignof(T)>
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::alignof_(hana::type_c<T>),
hana::size_c<alignof(T)>
));
// make sure we don't read from non-constexpr variables
{
auto t = hana::type_c<T>;
auto x = 1;
constexpr auto r1 = hana::alignof_(t); (void)r1;
constexpr auto r2 = hana::alignof_(x); (void)r2;
}
}