Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 31 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/find.cpp b/src/boost/libs/hana/example/find.cpp
new file mode 100644
index 00000000..cd75bc97
--- /dev/null
+++ b/src/boost/libs/hana/example/find.cpp
@@ -0,0 +1,31 @@
+// 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/equal.hpp>
+#include <boost/hana/find.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/map.hpp>
+#include <boost/hana/optional.hpp>
+#include <boost/hana/pair.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/type.hpp>
+namespace hana = boost::hana;
+
+
+BOOST_HANA_CONSTANT_CHECK(
+    hana::find(hana::make_tuple(hana::int_c<1>, hana::type_c<int>, '3'), hana::type_c<int>) == hana::just(hana::type_c<int>)
+);
+BOOST_HANA_CONSTANT_CHECK(
+    hana::find(hana::make_tuple(hana::int_c<1>, hana::type_c<int>, '3'), hana::type_c<void>) == hana::nothing
+);
+
+constexpr auto m = hana::make_map(
+    hana::make_pair(hana::int_c<2>, 2),
+    hana::make_pair(hana::type_c<float>, 3.3),
+    hana::make_pair(hana::type_c<char>, hana::type_c<int>)
+);
+static_assert(hana::find(m, hana::type_c<float>) == hana::just(3.3), "");
+
+int main() { }