1 files changed, 27 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/adjust_if.cpp b/src/boost/libs/hana/example/adjust_if.cpp
new file mode 100644
index 000000000..399f9e60f
--- /dev/null
+++ b/src/boost/libs/hana/example/adjust_if.cpp
@@ -0,0 +1,27 @@
+// 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/adjust_if.hpp>
+#include <boost/hana/assert.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/tuple.hpp>
+namespace hana = boost::hana;
+
+
+BOOST_HANA_CONSTEXPR_LAMBDA auto negative = [](auto x) {
+    return x < 0;
+};
+
+BOOST_HANA_CONSTEXPR_LAMBDA auto negate = [](auto x) {
+    return -x;
+};
+
+int main() {
+    BOOST_HANA_CONSTEXPR_CHECK(
+        hana::adjust_if(hana::make_tuple(-3, -2, -1, 0, 1, 2, 3), negative, negate)
+                ==
+        hana::make_tuple(3, 2, 1, 0, 1, 2, 3)
+    );
+}