Add support for value lists to mp_assign, mp_clear. Refs #53.

test/mp_clear_2.cpp

@@ -0,0 +1,32 @@
+// Copyright 2023 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/mp11/list.hpp>
+
+#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
+
+#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
+int main() {}
+
+#else
+
+#include <boost/mp11/integral.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+
+template<auto... A> struct L1 {};
+template<int... I> struct L2 {};
+
+int main()
+{
+    using boost::mp11::mp_list_v;
+    using boost::mp11::mp_clear;
+
+    BOOST_TEST_TRAIT_SAME(mp_clear<mp_list_v<false, true, 0, -4>>, mp_list_v<>);
+    BOOST_TEST_TRAIT_SAME(mp_clear<L1<false, true, 0, -4>>, L1<>);
+    BOOST_TEST_TRAIT_SAME(mp_clear<L2<0, 1, 2>>, L2<>);
+
+    return boost::report_errors();
+}
+
+#endif