Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/functional/iterate.cpp b/src/boost/libs/hana/example/functional/iterate.cpp
new file mode 100644
index 00000000..40aa7c93
--- /dev/null
+++ b/src/boost/libs/hana/example/functional/iterate.cpp
@@ -0,0 +1,19 @@
+// 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/equal.hpp>
+#include <boost/hana/functional/iterate.hpp>
+#include <boost/hana/functional/placeholder.hpp>
+#include <boost/hana/tuple.hpp>
+namespace hana = boost::hana;
+
+
+constexpr auto next_10 = hana::iterate<10>(hana::_ + 1);
+static_assert(next_10(3) == 13, "");
+
+constexpr auto xs = hana::make_tuple(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+static_assert(hana::iterate<3>(hana::make_tuple, xs) ==
+              hana::make_tuple(hana::make_tuple(hana::make_tuple(xs))), "");
+
+int main() { }