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, 57 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/struct.mcd.nested.cpp b/src/boost/libs/hana/example/struct.mcd.nested.cpp
new file mode 100644
index 000000000..3ba10a374
--- /dev/null
+++ b/src/boost/libs/hana/example/struct.mcd.nested.cpp
@@ -0,0 +1,57 @@
+// 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/concept/struct.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/find.hpp>
+#include <boost/hana/functional/id.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/not_equal.hpp>
+#include <boost/hana/pair.hpp>
+#include <boost/hana/string.hpp>
+#include <boost/hana/tuple.hpp>
+
+#include <string>
+#include <utility>
+namespace hana = boost::hana;
+
+
+//! [main]
+struct Person {
+    std::string name;
+    int age;
+
+    struct hana_accessors_impl {
+        static BOOST_HANA_CONSTEXPR_LAMBDA auto apply() {
+            return boost::hana::make_tuple(
+                boost::hana::make_pair(BOOST_HANA_STRING("name"),
+                [](auto&& p) -> decltype(auto) {
+                    return boost::hana::id(std::forward<decltype(p)>(p).name);
+                }),
+                boost::hana::make_pair(BOOST_HANA_STRING("age"),
+                [](auto&& p) -> decltype(auto) {
+                    return boost::hana::id(std::forward<decltype(p)>(p).age);
+                })
+            );
+        }
+    };
+};
+//! [main]
+
+int main() {
+    Person john{"John", 30}, bob{"Bob", 40};
+    BOOST_HANA_RUNTIME_CHECK(hana::equal(john, john));
+    BOOST_HANA_RUNTIME_CHECK(hana::not_equal(john, bob));
+
+    BOOST_HANA_RUNTIME_CHECK(hana::find(john, BOOST_HANA_STRING("name")) == hana::just("John"));
+    BOOST_HANA_RUNTIME_CHECK(hana::find(john, BOOST_HANA_STRING("age")) == hana::just(30));
+    BOOST_HANA_CONSTANT_CHECK(hana::find(john, BOOST_HANA_STRING("foo")) == hana::nothing);
+
+    BOOST_HANA_RUNTIME_CHECK(hana::to_tuple(john) == hana::make_tuple(
+        hana::make_pair(BOOST_HANA_STRING("name"), "John"),
+        hana::make_pair(BOOST_HANA_STRING("age"), 30)
+    ));
+}