Added thirdparty: boost library

thirdparty/include/boost/spirit/home/qi/detail/pass_function.hpp

@@ -0,0 +1,73 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 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)
+=============================================================================*/
+#ifndef BOOST_SPIRIT_QI_DETAIL_PASS_FUNCTION_HPP
+#define BOOST_SPIRIT_QI_DETAIL_PASS_FUNCTION_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/support/unused.hpp>
+#include <boost/optional.hpp>
+
+namespace boost { namespace spirit { namespace qi { namespace detail
+{
+#ifdef _MSC_VER
+#  pragma warning(push)
+#  pragma warning(disable: 4512) // assignment operator could not be generated.
+#endif
+    template <typename Iterator, typename Context, typename Skipper>
+    struct pass_function
+    {
+        pass_function(
+            Iterator& first_, Iterator const& last_
+          , Context& context_, Skipper const& skipper_)
+          : first(first_)
+          , last(last_)
+          , context(context_)
+          , skipper(skipper_)
+        {
+        }
+
+        template <typename Component, typename Attribute>
+        bool operator()(Component const& component, Attribute& attr)
+        {
+            // return true if the parser succeeds
+            return component.parse(first, last, context, skipper, attr);
+        }
+
+        template <typename Component, typename Attribute>
+        bool operator()(Component const& component, boost::optional<Attribute>& attr)
+        {
+            // return true if the parser succeeds
+            Attribute val;
+            if (component.parse(first, last, context, skipper, val))
+            {
+                attr = val;
+                return true;
+            }
+            return false;
+        }
+
+        template <typename Component>
+        bool operator()(Component const& component)
+        {
+            // return true if the parser succeeds
+            return component.parse(first, last, context, skipper, unused);
+        }
+
+        Iterator& first;
+        Iterator const& last;
+        Context& context;
+        Skipper const& skipper;
+    };
+#ifdef _MSC_VER
+#  pragma warning(pop)
+#endif
+}}}}
+
+#endif