1 files changed, 33 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/drop_while.cpp b/src/boost/libs/hana/example/drop_while.cpp
new file mode 100644
index 000000000..0e3cf7e74
--- /dev/null
+++ b/src/boost/libs/hana/example/drop_while.cpp
@@ -0,0 +1,33 @@
+// 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/drop_while.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/less.hpp>
+#include <boost/hana/negate.hpp>
+#include <boost/hana/range.hpp>
+#include <boost/hana/tuple.hpp>
+namespace hana = boost::hana;
+using namespace hana::literals;
+
+
+auto negative = [](auto x) {
+    return x < hana::int_c<0>;
+};
+
+BOOST_HANA_CONSTANT_CHECK(
+    hana::drop_while(hana::make_range(hana::int_c<-3>, hana::int_c<6>), negative)
+        ==
+    hana::make_range(hana::int_c<0>, hana::int_c<6>)
+);
+
+BOOST_HANA_CONSTANT_CHECK(
+    hana::drop_while(hana::make_tuple(1_c, -2_c, 4_c, 5_c), negative)
+        ==
+    hana::make_tuple(1_c, -2_c, 4_c, 5_c)
+);
+
+int main() { }