Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 58 insertions, 0 deletions

diff --git a/src/boost/libs/hof/test/lift.cpp b/src/boost/libs/hof/test/lift.cpp
new file mode 100644
index 00000000..cae10578
--- /dev/null
+++ b/src/boost/libs/hof/test/lift.cpp
@@ -0,0 +1,58 @@
+/*=============================================================================
+    Copyright (c) 2017 Paul Fultz II
+    lift.cpp
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+#include "test.hpp"
+#include <boost/hof/lift.hpp>
+#include <boost/hof/function.hpp>
+#include <boost/hof/detail/move.hpp>
+#include <tuple>
+#include <algorithm>
+
+template<class T, class U>
+constexpr T sum(T x, U y) BOOST_HOF_RETURNS_DEDUCE_NOEXCEPT(x+y)
+{
+    return x + y;
+}
+
+BOOST_HOF_LIFT_CLASS(max_f, std::max);
+BOOST_HOF_LIFT_CLASS(sum_f, sum);
+
+#if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION
+BOOST_HOF_TEST_CASE()
+{
+    static_assert(noexcept(sum_f()(1, 2)), "noexcept lift");
+    static_assert(!noexcept(sum_f()(std::string(), std::string())), "noexcept lift");
+}
+#endif
+
+BOOST_HOF_TEST_CASE()
+{
+    BOOST_HOF_TEST_CHECK(max_f()(3, 4) == std::max(3, 4));
+
+    BOOST_HOF_TEST_CHECK(sum_f()(1, 2) == 3);
+    BOOST_HOF_STATIC_TEST_CHECK(sum_f()(1, 2) == 3);
+}
+
+#if BOOST_HOF_HAS_GENERIC_LAMBDA
+BOOST_HOF_TEST_CASE()
+{
+    auto my_max = BOOST_HOF_LIFT(std::max);
+    BOOST_HOF_TEST_CHECK(my_max(3, 4) == std::max(3, 4));
+    
+    BOOST_HOF_TEST_CHECK(BOOST_HOF_LIFT(std::max)(3, 4) == std::max(3, 4));
+    BOOST_HOF_TEST_CHECK(BOOST_HOF_LIFT(sum)(1, 2) == 3);
+}
+
+BOOST_HOF_STATIC_FUNCTION(psum) = BOOST_HOF_LIFT(sum);
+BOOST_HOF_STATIC_FUNCTION(pmax) = BOOST_HOF_LIFT(std::max);
+
+BOOST_HOF_TEST_CASE()
+{
+    BOOST_HOF_TEST_CHECK(pmax(3, 4) == std::max(3, 4));
+
+    BOOST_HOF_TEST_CHECK(psum(1, 2) == 3);
+}
+#endif