1 files changed, 43 insertions, 0 deletions
diff --git a/src/boost/libs/hana/benchmark/fold_left/compile.cexpr.unrolled.erb.cpp b/src/boost/libs/hana/benchmark/fold_left/compile.cexpr.unrolled.erb.cpp
new file mode 100644
index 000000000..80fb46f05
--- /dev/null
+++ b/src/boost/libs/hana/benchmark/fold_left/compile.cexpr.unrolled.erb.cpp
@@ -0,0 +1,43 @@
+// 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/detail/variadic/foldl1.hpp>
+
+
+template <typename ...xs>
+struct list { };
+
+template <typename T>
+struct basic_type { using type = T; };
+
+template <typename T>
+constexpr basic_type<T> type{};
+
+
+template <typename F, typename State, typename ...Xs>
+constexpr auto foldl(F f, State s, list<Xs...> xs)
+{ return boost::hana::detail::variadic::foldl(f, s, type<Xs>...); }
+
+//////////////////////////////////////////////////////////////////////////////
+
+struct f {
+    template <typename ...>
+    struct result { };
+
+    template <typename X, typename Y>
+    constexpr auto operator()(X, Y) const
+    { return result<X, Y>{}; }
+};
+
+template <int> struct x { };
+struct state { };
+
+int main() {
+    constexpr auto xs = list<
+        <%= (1..input_size).map { |i| "x<#{i}>" }.join(', ') %>
+    >{};
+
+    constexpr auto result = foldl(f{}, state{}, xs);
+    (void)result;
+}