Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 67 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/adapt_adt.cpp b/src/boost/libs/hana/example/adapt_adt.cpp
new file mode 100644
index 00000000..54e591dc
--- /dev/null
+++ b/src/boost/libs/hana/example/adapt_adt.cpp
@@ -0,0 +1,67 @@
+// 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/accessors.hpp>
+#include <boost/hana/adapt_adt.hpp>
+#include <boost/hana/assert.hpp>
+#include <boost/hana/core/to.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/find.hpp>
+#include <boost/hana/first.hpp>
+#include <boost/hana/map.hpp>
+#include <boost/hana/not_equal.hpp>
+#include <boost/hana/optional.hpp>
+#include <boost/hana/pair.hpp>
+#include <boost/hana/string.hpp>
+#include <boost/hana/transform.hpp>
+#include <boost/hana/tuple.hpp>
+
+#include <string>
+namespace hana = boost::hana;
+
+
+namespace ns {
+    struct Person {
+        explicit Person(std::string const& name, int age)
+            : name_(name), age_(age)
+        { }
+        std::string const& get_name() const { return name_; }
+        int get_age() const { return age_; }
+
+    private:
+        std::string name_;
+        int age_;
+    };
+}
+
+BOOST_HANA_ADAPT_ADT(ns::Person,
+    (name, [](ns::Person const& p) { return p.get_name(); }),
+    (age, [](ns::Person const& p) { return p.get_age(); })
+);
+
+// The member names are hana::strings:
+auto names = hana::transform(hana::accessors<ns::Person>(), hana::first);
+BOOST_HANA_CONSTANT_CHECK(
+    names == hana::make_tuple(BOOST_HANA_STRING("name"), BOOST_HANA_STRING("age"))
+);
+
+int main() {
+    ns::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)
+    ));
+
+    BOOST_HANA_RUNTIME_CHECK(hana::to_map(john) == hana::make_map(
+        hana::make_pair(BOOST_HANA_STRING("name"), "John"),
+        hana::make_pair(BOOST_HANA_STRING("age"), 30)
+    ));
+}