add subtree-ish sources for 12.0.3

[ceph.git] / ceph / src / boost / libs / spirit / test / x3 / with.cpp

diff --git a/ceph/src/boost/libs/spirit/test/x3/with.cpp b/ceph/src/boost/libs/spirit/test/x3/with.cpp
new file mode 100644 (file)
index 0000000..840bbed
--- /dev/null
+++ b/ceph/src/boost/libs/spirit/test/x3/with.cpp
@@ -0,0 +1,60 @@
+/*=============================================================================
+    Copyright (c) 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/detail/lightweight_test.hpp>
+#include <boost/spirit/home/x3.hpp>
+#include "test.hpp"
+
+namespace x3 = boost::spirit::x3;
+
+struct my_tag;
+
+struct my_rule_class
+{
+    template <typename Iterator, typename Exception, typename Context>
+    x3::error_handler_result
+    on_error(Iterator&, Iterator const&, Exception const& x, Context const& context)
+    {
+        x3::get<my_tag>(context)++;
+        return x3::error_handler_result::fail;
+    }
+
+    template <typename Iterator, typename Attribute, typename Context>
+    inline void
+    on_success(Iterator const&, Iterator const&, Attribute&, Context const& context)
+    {
+        x3::get<my_tag>(context)++;
+    }
+};
+
+int
+main()
+{
+    using spirit_test::test_attr;
+    using spirit_test::test;
+
+    using boost::spirit::x3::rule;
+    using boost::spirit::x3::int_;
+    using boost::spirit::x3::with;
+
+    { // injecting data into the context in the grammar
+
+        int val = 0;
+        auto r = rule<my_rule_class, char const*>() =
+            '(' > int_ > ',' > int_ > ')'
+            ;
+
+        auto start =
+            with<my_tag>(std::ref(val)) [ r ]
+            ;
+
+        BOOST_TEST(test("(123,456)", start));
+        BOOST_TEST(!test("(abc,def)", start));
+        BOOST_TEST(val == 2);
+    }
+
+    return boost::report_errors();
+}