1 files changed, 59 insertions, 0 deletions
diff --git a/src/boost/libs/mp11/test/mp_nth_element_q.cpp b/src/boost/libs/mp11/test/mp_nth_element_q.cpp
new file mode 100644
index 000000000..0c6a333fe
--- /dev/null
+++ b/src/boost/libs/mp11/test/mp_nth_element_q.cpp
@@ -0,0 +1,59 @@
+
+// Copyright 2017 Peter Dimov.
+//
+// Distributed under the Boost Software License, Version 1.0.
+//
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+
+
+#include <boost/mp11/algorithm.hpp>
+#include <boost/mp11/list.hpp>
+#include <boost/mp11/integral.hpp>
+#include <boost/mp11/function.hpp>
+#include <boost/mp11/utility.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <type_traits>
+#include <tuple>
+
+int main()
+{
+    using boost::mp11::mp_nth_element_q;
+    using boost::mp11::mp_list_c;
+    using boost::mp11::mp_sort_q;
+    using boost::mp11::mp_less;
+    using boost::mp11::mp_at_c;
+    using boost::mp11::mp_size_t;
+    using boost::mp11::mp_rename;
+    using boost::mp11::mp_quote;
+
+    using Q_less = mp_quote<mp_less>;
+
+    {
+        using L1 = mp_list_c<int, 7, 1, 11, 3, 2, 2, 4>;
+        using L2 = mp_sort_q<L1, Q_less>;
+
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<0>, Q_less>, mp_at_c<L2, 0>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<1>, Q_less>, mp_at_c<L2, 1>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<2>, Q_less>, mp_at_c<L2, 2>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<3>, Q_less>, mp_at_c<L2, 3>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<4>, Q_less>, mp_at_c<L2, 4>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<5>, Q_less>, mp_at_c<L2, 5>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<6>, Q_less>, mp_at_c<L2, 6>>));
+    }
+
+    {
+        using L1 = mp_rename<mp_list_c<int, 7, 1, 11, 3, 2, 2, 4>, std::tuple>;
+        using L2 = mp_sort_q<L1, Q_less>;
+
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<0>, Q_less>, mp_at_c<L2, 0>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<1>, Q_less>, mp_at_c<L2, 1>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<2>, Q_less>, mp_at_c<L2, 2>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<3>, Q_less>, mp_at_c<L2, 3>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<4>, Q_less>, mp_at_c<L2, 4>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<5>, Q_less>, mp_at_c<L2, 5>>));
+        BOOST_TEST_TRAIT_TRUE((std::is_same<mp_nth_element_q<L1, mp_size_t<6>, Q_less>, mp_at_c<L2, 6>>));
+    }
+
+    return boost::report_errors();
+}