Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

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

1 files changed, 22 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/functional/overload_linearly.cpp b/src/boost/libs/hana/example/functional/overload_linearly.cpp
new file mode 100644
index 000000000..632234f56
--- /dev/null
+++ b/src/boost/libs/hana/example/functional/overload_linearly.cpp
@@ -0,0 +1,22 @@
+// 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/functional/overload_linearly.hpp>
+
+#include <string>
+namespace hana = boost::hana;
+
+
+auto f = hana::overload_linearly(
+    [](int i) { return i + 1; },
+    [](std::string s) { return s + "d"; },
+    [](double) { BOOST_HANA_RUNTIME_CHECK(false && "never called"); }
+);
+
+int main() {
+    BOOST_HANA_RUNTIME_CHECK(f(1) == 2);
+    BOOST_HANA_RUNTIME_CHECK(f("abc") == "abcd");
+    BOOST_HANA_RUNTIME_CHECK(f(2.2) == static_cast<int>(2.2) + 1);
+}