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-rw-r--r--src/boost/libs/hana/example/struct/searchable.cpp46
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diff --git a/src/boost/libs/hana/example/struct/searchable.cpp b/src/boost/libs/hana/example/struct/searchable.cpp
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+// 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/all_of.hpp>
+#include <boost/hana/assert.hpp>
+#include <boost/hana/define_struct.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/find.hpp>
+#include <boost/hana/optional.hpp>
+#include <boost/hana/second.hpp>
+#include <boost/hana/string.hpp>
+
+#include <string>
+namespace hana = boost::hana;
+
+
+struct Person {
+ BOOST_HANA_DEFINE_STRUCT(Person,
+ (std::string, name),
+ (unsigned short, age)
+ );
+};
+
+int main() {
+ Person john{"John", 30};
+
+ BOOST_HANA_RUNTIME_CHECK(
+ hana::find(john, BOOST_HANA_STRING("name")) == hana::just("John")
+ );
+
+ BOOST_HANA_CONSTANT_CHECK(
+ hana::find(john, BOOST_HANA_STRING("foobar")) == hana::nothing
+ );
+
+
+ BOOST_HANA_RUNTIME_CHECK(
+ hana::all_of(hana::accessors<Person>(), [&](auto a) {
+ return hana::second(a)(john) == hana::second(a)(john);
+ })
+ );
+
+ // the above is equivalent to:
+ BOOST_HANA_RUNTIME_CHECK(hana::equal(john, john));
+}