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diff --git a/src/boost/libs/spirit/example/x3/actions.cpp b/src/boost/libs/spirit/example/x3/actions.cpp
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+/*=============================================================================
+ Copyright (c) 2001-2015 Joel de Guzman
+
+ 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 <boost/config/warning_disable.hpp>
+#include <boost/spirit/home/x3.hpp>
+
+#include <iostream>
+
+// Presented are various ways to attach semantic actions
+// * Using plain function pointer
+// * Using simple function object
+
+namespace client
+{
+ namespace x3 = boost::spirit::x3;
+ using x3::_attr;
+
+ struct print_action
+ {
+ template <typename Context>
+ void operator()(Context const& ctx) const
+ {
+ std::cout << _attr(ctx) << std::endl;
+ }
+ };
+}
+
+int main()
+{
+ using boost::spirit::x3::int_;
+ using boost::spirit::x3::parse;
+ using client::print_action;
+
+ { // example using function object
+
+ char const *first = "{43}", *last = first + std::strlen(first);
+ parse(first, last, '{' >> int_[print_action()] >> '}');
+ }
+
+ { // example using C++14 lambda
+
+ using boost::spirit::x3::_attr;
+ char const *first = "{44}", *last = first + std::strlen(first);
+ auto f = [](auto& ctx){ std::cout << _attr(ctx) << std::endl; };
+ parse(first, last, '{' >> int_[f] >> '}');
+ }
+
+ return 0;
+}