1 files changed, 31 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/index_if.cpp b/src/boost/libs/hana/test/index_if.cpp
new file mode 100644
index 00000000..b899f0ca
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+++ b/src/boost/libs/hana/test/index_if.cpp
@@ -0,0 +1,31 @@
+// Copyright Louis Dionne 2013-2017
+// Copyright Jason Rice 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/index_if.hpp>
+#include <boost/hana/integral_constant.hpp>
+
+#include <cstddef>
+#include <support/counter.hpp>
+
+namespace hana = boost::hana;
+
+
+int main() {
+    // Tests hana::index_if on an infinite iterable
+    constexpr Counter<> c{};
+    auto pred = [](auto i) {
+        return [=](auto x) {
+            return hana::bool_c<decltype(x)::value == decltype(i)::value>;
+        };
+    };
+
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<0>)).value()){}) == 0, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<1>)).value()){}) == 1, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<2>)).value()){}) == 2, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<3>)).value()){}) == 3, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<4>)).value()){}) == 4, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<5>)).value()){}) == 5, "");
+    static_assert(hana::value(decltype(hana::index_if(c, pred(hana::size_c<6>)).value()){}) == 6, "");
+}