1 files changed, 57 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/ext/std/ratio/arithmetic.cpp b/src/boost/libs/hana/example/ext/std/ratio/arithmetic.cpp
new file mode 100644
index 000000000..7bcdbbd3f
--- /dev/null
+++ b/src/boost/libs/hana/example/ext/std/ratio/arithmetic.cpp
@@ -0,0 +1,57 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/div.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/ext/std/ratio.hpp>
+#include <boost/hana/minus.hpp>
+#include <boost/hana/mod.hpp>
+#include <boost/hana/mult.hpp>
+#include <boost/hana/one.hpp>
+#include <boost/hana/plus.hpp>
+#include <boost/hana/zero.hpp>
+
+#include <ratio>
+namespace hana = boost::hana;
+
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::plus(std::ratio<5, 3>{}, std::ratio<3, 12>{}),
+    std::ratio<23, 12>{}
+));
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::minus(std::ratio<5, 3>{}, std::ratio<3, 13>{}),
+    std::ratio<56, 39>{}
+));
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::mult(std::ratio<5, 3>{}, std::ratio<3, 13>{}),
+    std::ratio<15, 39>{}
+));
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::div(std::ratio<5, 3>{}, std::ratio<3, 13>{}),
+    std::ratio<65, 9>{}
+));
+
+// The mod of two ratios is always 0, because they can always be
+// divided without remainder.
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::mod(std::ratio<5, 3>{}, std::ratio<3, 13>{}),
+    std::ratio<0>{}
+));
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::zero<hana::ext::std::ratio_tag>(),
+    std::ratio<0>{}
+));
+
+BOOST_HANA_CONSTANT_CHECK(hana::equal(
+    hana::one<hana::ext::std::ratio_tag>(),
+    std::ratio<1>{}
+));
+
+int main() { }