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-rw-r--r--src/boost/libs/hana/example/cartesian_product.cpp37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/cartesian_product.cpp b/src/boost/libs/hana/example/cartesian_product.cpp
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+++ b/src/boost/libs/hana/example/cartesian_product.cpp
@@ -0,0 +1,37 @@
+// 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/cartesian_product.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/type.hpp>
+namespace hana = boost::hana;
+
+
+constexpr auto tuples = hana::make_tuple(
+ hana::make_tuple(1, 2, 3),
+ hana::make_tuple('a', 'b'),
+ hana::make_tuple(hana::type_c<int>, hana::type_c<char>)
+);
+
+constexpr auto prod = hana::make_tuple(
+ hana::make_tuple(1, 'a', hana::type_c<int>),
+ hana::make_tuple(1, 'a', hana::type_c<char>),
+ hana::make_tuple(1, 'b', hana::type_c<int>),
+ hana::make_tuple(1, 'b', hana::type_c<char>),
+
+ hana::make_tuple(2, 'a', hana::type_c<int>),
+ hana::make_tuple(2, 'a', hana::type_c<char>),
+ hana::make_tuple(2, 'b', hana::type_c<int>),
+ hana::make_tuple(2, 'b', hana::type_c<char>),
+
+ hana::make_tuple(3, 'a', hana::type_c<int>),
+ hana::make_tuple(3, 'a', hana::type_c<char>),
+ hana::make_tuple(3, 'b', hana::type_c<int>),
+ hana::make_tuple(3, 'b', hana::type_c<char>)
+);
+
+static_assert(hana::cartesian_product(tuples) == prod, "");
+
+int main() { }