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diff --git a/src/boost/libs/hana/test/_include/auto/index_if.hpp b/src/boost/libs/hana/test/_include/auto/index_if.hpp
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+// Copyright Louis Dionne 2013-2017
+// Copyright Jason Rice 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)
+
+#ifndef BOOST_HANA_TEST_AUTO_INDEX_IF_HPP
+#define BOOST_HANA_TEST_AUTO_INDEX_IF_HPP
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/index_if.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/optional.hpp>
+
+#include "test_case.hpp"
+#include <laws/base.hpp>
+#include <support/tracked.hpp>
+
+
+namespace _test_index_if_detail { template <int> struct invalid { }; }
+
+
+TestCase test_index_if{[]{
+ namespace hana = boost::hana;
+ using hana::test::ct_eq;
+ using _test_index_if_detail::invalid;
+
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(), hana::equal.to(ct_eq<0>{})),
+ hana::nothing
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}), hana::equal.to(ct_eq<0>{})),
+ hana::just(hana::size_c<0>)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}), hana::equal.to(ct_eq<42>{})),
+ hana::nothing
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<0>{})),
+ hana::just(hana::size_c<0>)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<1>{})),
+ hana::just(hana::size_c<1>)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<2>{})),
+ hana::just(hana::size_c<2>)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::index_if(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), hana::equal.to(ct_eq<42>{})),
+ hana::nothing
+ ));
+
+#ifndef MAKE_TUPLE_NO_CONSTEXPR
+ auto type_equal = [](auto type) { return [=](auto&& value) {
+ return hana::equal(hana::typeid_(value), type);
+ };};
+
+ static_assert(decltype(hana::equal(
+ hana::index_if(MAKE_TUPLE(1, '2', 3.3), type_equal(hana::type_c<int>)),
+ hana::just(hana::size_c<0>)
+ )){}, "");
+ static_assert(decltype(hana::equal(
+ hana::index_if(MAKE_TUPLE(1, '2', 3.3), type_equal(hana::type_c<char>)),
+ hana::just(hana::size_c<1>)
+ )){}, "");
+ static_assert(decltype(hana::equal(
+ hana::index_if(MAKE_TUPLE(1, '2', 3.3), type_equal(hana::type_c<double>)),
+ hana::just(hana::size_c<2>)
+ )){}, "");
+ static_assert(decltype(hana::equal(
+ hana::index_if(MAKE_TUPLE(1, '2', 3.3), type_equal(hana::type_c<invalid<42>>)),
+ hana::nothing
+ )){}, "");
+#endif
+}};
+
+#endif // !BOOST_HANA_TEST_AUTO_INDEX_IF_HPP