From 60676e99e8b4825f1f4720e132689335a1762c10 Mon Sep 17 00:00:00 2001
From: jzmaddock <john@johnmaddock.co.uk>
Date: Mon, 22 Feb 2021 18:49:19 +0000
Subject: [PATCH] Slight increase in policy testing.

---
 test/Jamfile.v2         |  1 +
 test/test_policy_10.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 test/test_policy_10.cpp

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 3b39e3bcb..dedec3110 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -944,6 +944,7 @@ test-suite misc :
    [ run test_policy_7.cpp ../../test/build//boost_unit_test_framework  ]
    [ run test_policy_8.cpp ../../test/build//boost_unit_test_framework  ]
    [ compile test_policy_9.cpp  ]
+   [ run test_policy_10.cpp ../../test/build//boost_unit_test_framework  ]
    [ run test_policy_sf.cpp ../../test/build//boost_unit_test_framework  ]
    [ run test_long_double_support.cpp ../../test/build//boost_unit_test_framework
       : : : [ check-target-builds ../config//has_long_double_support "long double support" : : <build>no ] ]
diff --git a/test/test_policy_10.cpp b/test/test_policy_10.cpp
new file mode 100644
index 000000000..ce53076bf
--- /dev/null
+++ b/test/test_policy_10.cpp
@@ -0,0 +1,38 @@
+
+// Copyright John Maddock 2007.
+
+// Use, modification and distribution are subject to 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/math/policies/policy.hpp>
+#define BOOST_TEST_MAIN
+#include <boost/test/unit_test.hpp> // for test_main
+#include <iostream>
+#include <type_traits>
+
+template <class P1, class P2>
+bool check_same(const P1&, const P2&)
+{
+   if(!std::is_same<P1, P2>::value)
+   {
+      std::cout << "P1 = " << typeid(P1).name() << std::endl;
+      std::cout << "P2 = " << typeid(P2).name() << std::endl;
+   }
+   return std::is_same<P1, P2>::value;
+}
+
+
+BOOST_AUTO_TEST_CASE( test_main )
+{
+   using namespace boost::math::policies;
+   using namespace boost;
+
+   BOOST_CHECK(check_same(make_policy(denorm_error<ignore_error>(), digits2<20>()), make_policy(digits2<20>(), denorm_error<ignore_error>())));
+   BOOST_CHECK(check_same(make_policy(denorm_error<ignore_error>(), promote_float<false>()), make_policy(promote_float<false>(), denorm_error<ignore_error>())));
+   BOOST_CHECK(check_same(make_policy(denorm_error<ignore_error>(), indeterminate_result_error<ignore_error>(), promote_float<false>()), make_policy(indeterminate_result_error<ignore_error>(), promote_float<false>(), denorm_error<ignore_error>())));
+} // BOOST_AUTO_TEST_CASE( test_main )
+
+
+