Additional visitor tests

Currently failing tests are commented out for now.

Author: Kojoley

test/unary_visit_helper.hpp

@@ -0,0 +1,83 @@
+#if defined(DECLTYPE_VISITOR)
+{
+    struct visitor_type
+    {
+    #if !DECLTYPE_VISITOR
+        typedef int result_type;
+    #endif
+        int operator()(udt1 VARIANT_QUALIFIERS) VISITOR_QUALIFIERS { return 0; }
+        int operator()(udt2 VARIANT_QUALIFIERS) VISITOR_QUALIFIERS { return 1; }
+    } visitor;
+
+    typedef boost::variant<udt1, udt2> variant_type;
+    variant_type v = udt2();
+
+    BOOST_TEST_EQ(1,
+        (boost::apply_visitor(
+            static_cast<visitor_type VISITOR_QUALIFIERS>(visitor),
+            static_cast<variant_type VARIANT_QUALIFIERS>(v))
+        ));
+
+    v = udt1();
+
+    BOOST_TEST_EQ(0,
+        (boost::apply_visitor(
+            static_cast<visitor_type VISITOR_QUALIFIERS>(visitor),
+            static_cast<variant_type VARIANT_QUALIFIERS>(v))
+        ));
+}
+#elif defined(VARIANT_QUALIFIERS)
+
+#define DECLTYPE_VISITOR 0
+#include "unary_visit_helper.hpp"
+#undef DECLTYPE_VISITOR
+#ifdef BOOST_VARIANT_HAS_DECLTYPE_APPLY_VISITOR_RETURN_TYPE
+#define DECLTYPE_VISITOR 1
+#include "unary_visit_helper.hpp"
+#undef DECLTYPE_VISITOR
+#endif
+
+#elif defined(VISITOR_QUALIFIERS)
+
+#define VARIANT_QUALIFIERS
+#include "unary_visit_helper.hpp"
+#undef VARIANT_QUALIFIERS
+#ifndef BOOST_NO_CXX11_REF_QUALIFIERS // BOOST_NO_CXX11_RVALUE_REFERENCES is not enough for disabling buggy GCCs < 4.8
+#define VARIANT_QUALIFIERS &
+#include "unary_visit_helper.hpp"
+#undef VARIANT_QUALIFIERS
+#define VARIANT_QUALIFIERS const&
+#include "unary_visit_helper.hpp"
+#undef VARIANT_QUALIFIERS
+#define VARIANT_QUALIFIERS &&
+#include "unary_visit_helper.hpp"
+#undef VARIANT_QUALIFIERS
+#define VARIANT_QUALIFIERS const&&
+#include "unary_visit_helper.hpp"
+#undef VARIANT_QUALIFIERS
+#endif
+
+#elif !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+//#define VISITOR_QUALIFIERS
+//#include "unary_visit_helper.hpp"
+//#undef VISITOR_QUALIFIERS
+#define VISITOR_QUALIFIERS const
+#include "unary_visit_helper.hpp"
+#undef VISITOR_QUALIFIERS
+#ifndef BOOST_NO_CXX11_REF_QUALIFIERS
+#define VISITOR_QUALIFIERS &
+#include "unary_visit_helper.hpp"
+#undef VISITOR_QUALIFIERS
+#define VISITOR_QUALIFIERS const&
+#include "unary_visit_helper.hpp"
+#undef VISITOR_QUALIFIERS
+//#define VISITOR_QUALIFIERS &&
+//#include "unary_visit_helper.hpp"
+//#undef VISITOR_QUALIFIERS
+//#define VISITOR_QUALIFIERS const&&
+//#include "unary_visit_helper.hpp"
+//#undef VISITOR_QUALIFIERS
+#endif
+
+#endif

test/variant_visit_test.cpp

@@ -62,22 +62,6 @@ class binary_check_content_type
 
 };
 
-#ifndef BOOST_NO_CXX11_REF_QUALIFIERS // BOOST_NO_CXX11_RVALUE_REFERENCES is not enough for disabling buggy GCCs < 4.8
-struct rvalue_ref_visitor
-{
-    typedef int result_type;
-    int operator()(udt1&&) const { return 0; }
-    int operator()(udt2&&) const { return 1; }
-};
-#endif
-#ifdef BOOST_VARIANT_HAS_DECLTYPE_APPLY_VISITOR_RETURN_TYPE
-struct rvalue_ref_decltype_visitor
-{
-    int operator()(udt1&&) const { return 0; }
-    int operator()(udt2&&) const { return 1; }
-};
-#endif
-
 template <typename Checker, typename Variant>
 inline void unary_test(Variant& var, Checker* = 0)
 {
@@ -140,16 +124,7 @@ int main()
     unary_test< check2_t       >(var2);
     unary_test< check2_const_t >(cvar2);
 
-#ifndef BOOST_NO_CXX11_REF_QUALIFIERS // BOOST_NO_CXX11_RVALUE_REFERENCES is not enough for disabling buggy GCCs < 4.8
-    BOOST_TEST_EQ( (boost::apply_visitor(
-                        rvalue_ref_visitor(),
-                        boost::variant<udt1, udt2>(udt2()))), 1 );
-#endif
-#ifdef BOOST_VARIANT_HAS_DECLTYPE_APPLY_VISITOR_RETURN_TYPE
-    BOOST_TEST_EQ( (boost::apply_visitor(
-                        rvalue_ref_decltype_visitor(),
-                        boost::variant<udt1, udt2>(udt2()))), 1 );
-#endif
+    #include "unary_visit_helper.hpp"
 
     //
     // binary tests