diff --git a/include/nana/audio/player.hpp b/include/nana/audio/player.hpp
index c4fc3d87..0dad445f 100644
--- a/include/nana/audio/player.hpp
+++ b/include/nana/audio/player.hpp
@@ -1,6 +1,6 @@
 #ifndef NANA_AUDIO_PLAYER_HPP
 #define NANA_AUDIO_PLAYER_HPP
-
+#include <nana/push_ignore_diagnostic>
 #include <nana/deploy.hpp>
 
 #ifdef NANA_ENABLE_AUDIO
@@ -31,4 +31,7 @@ namespace nana{	namespace audio
 }//end namespace nana
 
 #endif	//NANA_ENABLE_AUDIO
-#endif
\ No newline at end of file
+
+#include <nana/pop_ignore_diagnostic>
+
+#endif
diff --git a/include/nana/basic_types.hpp b/include/nana/basic_types.hpp
index 4fb4385d..4d13b6ec 100644
--- a/include/nana/basic_types.hpp
+++ b/include/nana/basic_types.hpp
@@ -15,6 +15,7 @@
 
 #include <nana/deploy.hpp>
 #include <cctype>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -484,7 +485,7 @@ namespace nana
 		southeast
 	};
 }//end namespace nana
-
+#include <nana/pop_ignore_diagnostic>
 #endif
 
 
diff --git a/include/nana/c++defines.hpp b/include/nana/c++defines.hpp
index 86159f79..2dc4c5f2 100644
--- a/include/nana/c++defines.hpp
+++ b/include/nana/c++defines.hpp
@@ -137,11 +137,11 @@
 
 	#if ((__GNUC__ < 5)   )
 	#	define STD_put_time_NOT_SUPPORTED
-    #endif
+	#endif
 
-    #if ((__GNUC__ > 5) || ((__GNUC__ == 5) && (__GNUC_MINOR__ >= 3 ) ) )
+	#if ((__GNUC__ > 5) || ((__GNUC__ == 5) && (__GNUC_MINOR__ >= 3 ) ) )
 	#	undef STD_FILESYSTEM_NOT_SUPPORTED
-    #endif
+	#endif
 
 	#if (__GNUC__ == 4)
 		#if ((__GNUC_MINOR__ < 8) || (__GNUC_MINOR__ == 8 && __GNUC_PATCHLEVEL__ < 1))
diff --git a/include/nana/deploy.hpp b/include/nana/deploy.hpp
index 0f7cb8c9..f172fb71 100644
--- a/include/nana/deploy.hpp
+++ b/include/nana/deploy.hpp
@@ -14,6 +14,7 @@
 
 #ifndef NANA_DEPLOY_HPP
 #define NANA_DEPLOY_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include <nana/config.hpp>
 #if defined(VERBOSE_PREPROCESSOR)
@@ -215,5 +216,5 @@ namespace std {
 			make_unique(Args&&...) = delete;
 }
 #endif //STD_make_unique_NOT_SUPPORTED
-
-#endif //NANA_MACROS_HPP
+#include <nana/pop_ignore_diagnostic>
+#endif //NANA_DEPLOY_HPP
diff --git a/include/nana/detail/linux_X11/platform_spec.hpp b/include/nana/detail/linux_X11/platform_spec.hpp
index 12bb65c3..e701c203 100644
--- a/include/nana/detail/linux_X11/platform_spec.hpp
+++ b/include/nana/detail/linux_X11/platform_spec.hpp
@@ -18,6 +18,8 @@
 #ifndef NANA_DETAIL_PLATFORM_SPEC_HPP
 #define NANA_DETAIL_PLATFORM_SPEC_HPP
 
+#include <nana/push_ignore_diagnostic>
+
 #include <thread>
 #include <mutex>
 #include <memory>
@@ -193,8 +195,8 @@ namespace detail
 			native_window_type owner;
 			std::vector<native_window_type> * owned;
 		};
-    public:
-        int error_code;
+	public:
+		int error_code;
 	public:
 		typedef drawable_impl_type::font_ptr_t font_ptr_t;
 		typedef void (*timer_proc_type)(unsigned tid);
@@ -202,6 +204,8 @@ namespace detail
 		typedef ::nana::event_code		event_code;
 		typedef ::nana::native_window_type	native_window_type;
 
+		platform_spec(const platform_spec&) = delete;
+		platform_spec& operator=(const platform_spec&) = delete;
 
 		platform_spec();
 		~platform_spec();
@@ -332,6 +336,7 @@ namespace detail
 
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
 // .h ward
 #endif
 
diff --git a/include/nana/detail/win32/platform_spec.hpp b/include/nana/detail/win32/platform_spec.hpp
index dc6329fe..dba6062a 100644
--- a/include/nana/detail/win32/platform_spec.hpp
+++ b/include/nana/detail/win32/platform_spec.hpp
@@ -142,6 +142,9 @@ namespace detail
 			unsigned whitespace_pixels;
 		}string;
 
+		drawable_impl_type(const drawable_impl_type&) = delete;
+		drawable_impl_type& operator=(const drawable_impl_type&) = delete;
+
 		drawable_impl_type();
 		~drawable_impl_type();
 
diff --git a/include/nana/filesystem/filesystem.hpp b/include/nana/filesystem/filesystem.hpp
index 2b44a60d..a62a5707 100644
--- a/include/nana/filesystem/filesystem.hpp
+++ b/include/nana/filesystem/filesystem.hpp
@@ -29,6 +29,9 @@
 
 #ifndef NANA_FILESYSTEM_HPP
 #define NANA_FILESYSTEM_HPP
+
+#include <nana/push_ignore_diagnostic>
+
 #include <string>
 #include <system_error>
 #include <iterator>
@@ -409,4 +412,5 @@ namespace nana  { namespace experimental { namespace filesystem
   //namespace filesystem = experimental::filesystem;
 } //end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/animation.hpp b/include/nana/gui/animation.hpp
index d9a62e26..9f0df563 100644
--- a/include/nana/gui/animation.hpp
+++ b/include/nana/gui/animation.hpp
@@ -12,7 +12,7 @@
 
 #ifndef NANA_GUI_ANIMATION_HPP
 #define NANA_GUI_ANIMATION_HPP
-
+#include <nana/push_ignore_diagnostic>
 #include <nana/paint/image.hpp>
 
 #include <functional>
@@ -82,4 +82,5 @@ namespace nana
 		impl * impl_;
 	};
 }	//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif	//NANA_GUI_ANIMATION_HPP
diff --git a/include/nana/gui/basis.hpp b/include/nana/gui/basis.hpp
index 55518554..37fd7f69 100644
--- a/include/nana/gui/basis.hpp
+++ b/include/nana/gui/basis.hpp
@@ -15,6 +15,8 @@
 #ifndef NANA_GUI_BASIS_HPP
 #define NANA_GUI_BASIS_HPP
 
+#include <nana/push_ignore_diagnostic>
+
 #include "../basic_types.hpp"
 #include "../traits.hpp"	//metacomp::fixed_type_set
 
@@ -59,9 +61,9 @@ namespace nana
 		};
 		//wait for constexpr
 		struct widget_tag{ static const flags value = flags::widget; };
-		struct lite_widget_tag : widget_tag{ static const flags value = flags::lite_widget;};
-		struct root_tag : widget_tag{ static const flags value = flags::root; };
-		struct frame_tag: widget_tag{ static const flags value = flags::frame; };
+		struct lite_widget_tag : public widget_tag{ static const flags value = flags::lite_widget;  };
+		struct root_tag : public widget_tag{ static const flags value = flags::root;  };
+		struct frame_tag : public widget_tag{ static const flags value = flags::frame;  };
 	}// end namespace category
 
 	using native_window_type = detail::native_window_handle_impl*;
@@ -258,4 +260,6 @@ that return a corresponding nana::appearance with predefined values.
 		};
 	};//end namespace apper
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/detail/basic_window.hpp b/include/nana/gui/detail/basic_window.hpp
index ed2e1db4..e2e68fe1 100644
--- a/include/nana/gui/detail/basic_window.hpp
+++ b/include/nana/gui/detail/basic_window.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_DETAIL_BASIC_WINDOW_HPP
 #define NANA_GUI_DETAIL_BASIC_WINDOW_HPP
+#include <nana/push_ignore_diagnostic>
 #include "drawer.hpp"
 #include "events_holder.hpp"
 #include "widget_colors.hpp"
@@ -237,5 +238,6 @@ namespace detail
 
 }//end namespace detail
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif
 
diff --git a/include/nana/gui/detail/bedrock.hpp b/include/nana/gui/detail/bedrock.hpp
index 128ce532..a88e0642 100644
--- a/include/nana/gui/detail/bedrock.hpp
+++ b/include/nana/gui/detail/bedrock.hpp
@@ -33,6 +33,9 @@ namespace detail
 	class bedrock
 	{
 		bedrock();
+
+		bedrock(const bedrock&) = delete;
+		bedrock& operator=(const bedrock&) = delete;
 	public:
 		using core_window_t = basic_window;
 
diff --git a/include/nana/gui/detail/bedrock_pi_data.hpp b/include/nana/gui/detail/bedrock_pi_data.hpp
index 3154a6b3..4e9e28c8 100644
--- a/include/nana/gui/detail/bedrock_pi_data.hpp
+++ b/include/nana/gui/detail/bedrock_pi_data.hpp
@@ -1,6 +1,8 @@
 #ifndef NANA_DETAIL_BEDROCK_PI_DATA_HPP
 #define NANA_DETAIL_BEDROCK_PI_DATA_HPP
 
+#include <nana/push_ignore_diagnostic>
+
 #include <nana/gui/detail/bedrock.hpp>
 #include "color_schemes.hpp"
 #include "events_operation.hpp"
@@ -20,4 +22,7 @@ namespace nana
 		};
 	}
 }
+
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/detail/drawer.hpp b/include/nana/gui/detail/drawer.hpp
index b680ec6a..26061033 100644
--- a/include/nana/gui/detail/drawer.hpp
+++ b/include/nana/gui/detail/drawer.hpp
@@ -13,6 +13,7 @@
 #ifndef NANA_GUI_DETAIL_DRAWER_HPP
 #define NANA_GUI_DETAIL_DRAWER_HPP
 
+#include <nana/push_ignore_diagnostic>
 #include <vector>
 #include "general_events.hpp"
 #include <nana/paint/graphics.hpp>
@@ -170,4 +171,6 @@ namespace nana
 	}//end namespace detail
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/detail/element_store.hpp b/include/nana/gui/detail/element_store.hpp
index 0035d4be..3ac5b242 100644
--- a/include/nana/gui/detail/element_store.hpp
+++ b/include/nana/gui/detail/element_store.hpp
@@ -15,9 +15,13 @@
 
 #include <nana/gui/element.hpp>
 #include <nana/pat/cloneable.hpp>
+
 #include <map>
 #include <string>
 
+#include <nana/push_ignore_diagnostic>
+
+
 namespace nana
 {
 namespace detail
@@ -48,5 +52,6 @@ namespace detail
 	};
 }//end namespace detail
 }
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/detail/general_events.hpp b/include/nana/gui/detail/general_events.hpp
index c30c2d1c..e7a5911a 100644
--- a/include/nana/gui/detail/general_events.hpp
+++ b/include/nana/gui/detail/general_events.hpp
@@ -12,6 +12,8 @@
 #ifndef NANA_DETAIL_GENERAL_EVENTS_HPP
 #define NANA_DETAIL_GENERAL_EVENTS_HPP
 
+#include <nana/push_ignore_diagnostic>
+
 #include <nana/gui/basis.hpp>
 #include "event_code.hpp"
 #include "internal_scope_guard.hpp"
@@ -576,4 +578,6 @@ namespace nana
 	}//end namespace detail
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/detail/handle_manager.hpp b/include/nana/gui/detail/handle_manager.hpp
index 7e8f670d..716433be 100644
--- a/include/nana/gui/detail/handle_manager.hpp
+++ b/include/nana/gui/detail/handle_manager.hpp
@@ -25,6 +25,8 @@
 
 #include <map>
 #include <iterator>
+#include <nana/push_ignore_diagnostic>
+
 
 namespace nana
 {
@@ -288,4 +290,6 @@ namespace nana
 		};//end class handle_manager
 	}//end namespace detail
 }// end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/detail/inner_fwd_implement.hpp b/include/nana/gui/detail/inner_fwd_implement.hpp
index 90589d3c..dd88b9e2 100644
--- a/include/nana/gui/detail/inner_fwd_implement.hpp
+++ b/include/nana/gui/detail/inner_fwd_implement.hpp
@@ -14,6 +14,7 @@
 #ifndef NANA_GUI_INNER_FWD_IMPLEMENT_HPP
 #define NANA_GUI_INNER_FWD_IMPLEMENT_HPP
 
+#include <nana/push_ignore_diagnostic>
 #include "inner_fwd.hpp"
 #include "basic_window.hpp"
 #include "../../paint/graphics.hpp"
@@ -172,4 +173,7 @@ namespace nana{
 		};
 	}
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
+
 #endif	//NANA_GUI_INNER_FWD_IMPLEMENT_HPP
diff --git a/include/nana/gui/detail/window_layout.hpp b/include/nana/gui/detail/window_layout.hpp
index f4bdfe0b..34987291 100644
--- a/include/nana/gui/detail/window_layout.hpp
+++ b/include/nana/gui/detail/window_layout.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_DETAIL_WINDOW_LAYOUT_HPP
 #define NANA_GUI_DETAIL_WINDOW_LAYOUT_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include <nana/gui/basis.hpp>
 #include <vector>
@@ -84,5 +85,7 @@ namespace detail
 }//end namespace detail
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
+
 #endif //NANA_GUI_DETAIL_WINDOW_LAYOUT_HPP
 
diff --git a/include/nana/gui/detail/window_manager.hpp b/include/nana/gui/detail/window_manager.hpp
index 0b1f51c9..9a1302a2 100644
--- a/include/nana/gui/detail/window_manager.hpp
+++ b/include/nana/gui/detail/window_manager.hpp
@@ -18,6 +18,8 @@
 #ifndef NANA_GUI_DETAIL_WINDOW_MANAGER_HPP
 #define NANA_GUI_DETAIL_WINDOW_MANAGER_HPP
 
+#include <nana/push_ignore_diagnostic>
+
 #include <vector>
 #include "window_layout.hpp"
 #include "event_code.hpp"
@@ -195,4 +197,7 @@ namespace detail
 	};//end class window_manager
 }//end namespace detail
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/dragger.hpp b/include/nana/gui/dragger.hpp
index e34094ef..9e6bbbf2 100644
--- a/include/nana/gui/dragger.hpp
+++ b/include/nana/gui/dragger.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_DRAGGER_HPP
 #define NANA_GUI_DRAGGER_HPP
+#include <nana/push_ignore_diagnostic>
 #include "basis.hpp"
 #include "../basic_types.hpp"
 #include "../traits.hpp"
@@ -44,4 +45,5 @@ namespace nana
 		dragger_impl_t * impl_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/drawing.hpp b/include/nana/gui/drawing.hpp
index fb1b966b..06ecece6 100644
--- a/include/nana/gui/drawing.hpp
+++ b/include/nana/gui/drawing.hpp
@@ -11,6 +11,8 @@
  */
 #ifndef NANA_GUI_DRAWING_HPP
 #define NANA_GUI_DRAWING_HPP
+
+#include <nana/push_ignore_diagnostic>
 #include "widgets/widget.hpp"
 #include "../traits.hpp"
 namespace nana
@@ -46,4 +48,6 @@ namespace nana
 		window handle_;
 	};//end class drawing
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/element.hpp b/include/nana/gui/element.hpp
index 599aa87a..93379052 100644
--- a/include/nana/gui/element.hpp
+++ b/include/nana/gui/element.hpp
@@ -12,6 +12,7 @@
 #ifndef NANA_GUI_ELEMENT_HPP
 #define NANA_GUI_ELEMENT_HPP
 
+#include <nana/push_ignore_diagnostic>
 #include <nana/paint/graphics.hpp>
 #include <nana/pat/cloneable.hpp>
 #include <vector>
@@ -349,4 +350,5 @@ namespace nana
 	}//end namespace element
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
 #endif	//NANA_GUI_ELEMENT_HPP
diff --git a/include/nana/gui/msgbox.hpp b/include/nana/gui/msgbox.hpp
index af5a1437..e21392e0 100644
--- a/include/nana/gui/msgbox.hpp
+++ b/include/nana/gui/msgbox.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_MSGBOX_HPP
 #define NANA_GUI_MSGBOX_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include <sstream>
 
@@ -253,5 +254,6 @@ namespace nana
 		::nana::rectangle valid_areas_[4];
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/notifier.hpp b/include/nana/gui/notifier.hpp
index a557fd45..48442a96 100644
--- a/include/nana/gui/notifier.hpp
+++ b/include/nana/gui/notifier.hpp
@@ -14,6 +14,7 @@
 #define NANA_GUI_NOTIFIER_HPP
 #include <nana/gui/basis.hpp>
 #include <nana/gui/detail/general_events.hpp>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -65,4 +66,5 @@ namespace nana
 		implement * impl_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/place.hpp b/include/nana/gui/place.hpp
index 8f32545b..b10a8a18 100644
--- a/include/nana/gui/place.hpp
+++ b/include/nana/gui/place.hpp
@@ -15,6 +15,7 @@
 
 #ifndef NANA_GUI_PLACE_HPP
 #define NANA_GUI_PLACE_HPP
+#include <nana/push_ignore_diagnostic>
 #include <nana/gui/basis.hpp>
 #include <utility>
 #include <memory>
@@ -145,5 +146,6 @@ namespace nana
 		implement * impl_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 
 #endif //#ifndef NANA_GUI_PLACE_HPP
diff --git a/include/nana/gui/timer.hpp b/include/nana/gui/timer.hpp
index 893a4e5d..9ae26f32 100644
--- a/include/nana/gui/timer.hpp
+++ b/include/nana/gui/timer.hpp
@@ -16,6 +16,7 @@
 #ifndef NANA_GUI_TIMER_HPP
 #define NANA_GUI_TIMER_HPP
 #include <nana/gui/detail/general_events.hpp>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {  
@@ -58,4 +59,5 @@ namespace nana
 		implement * const impl_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/button.hpp b/include/nana/gui/widgets/button.hpp
index bddeca77..e1813917 100644
--- a/include/nana/gui/widgets/button.hpp
+++ b/include/nana/gui/widgets/button.hpp
@@ -14,6 +14,8 @@
 #define NANA_GUI_WIDGET_BUTTON_HPP
 #include "widget.hpp"
 #include <nana/gui/element.hpp>
+#include <nana/push_ignore_diagnostic>
+
 
 namespace nana{
 	namespace drawerbase
@@ -105,5 +107,7 @@ namespace nana{
 			void _m_caption(native_string_type&&) override;
 		};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
 
diff --git a/include/nana/gui/widgets/categorize.hpp b/include/nana/gui/widgets/categorize.hpp
index 3b8f5b3c..3f211c81 100644
--- a/include/nana/gui/widgets/categorize.hpp
+++ b/include/nana/gui/widgets/categorize.hpp
@@ -16,6 +16,7 @@
 #include <nana/gui/widgets/widget.hpp>
 #include <nana/pat/cloneable.hpp>
 #include <nana/any.hpp>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -141,7 +142,7 @@ namespace nana
 				void mouse_leave(graph_reference, const arg_mouse&)	override;
 			private:
 				std::unique_ptr<event_agent_interface> event_agent_;
-				scheme * scheme_;
+				scheme * scheme_{nullptr};
 			};
 		}//end namespace categorize
 	}//end namespace drawerbase
@@ -258,5 +259,5 @@ namespace nana
 		}
 	};
 }//end namespace nana
-
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/checkbox.hpp b/include/nana/gui/widgets/checkbox.hpp
index 8d458be3..8d06b590 100644
--- a/include/nana/gui/widgets/checkbox.hpp
+++ b/include/nana/gui/widgets/checkbox.hpp
@@ -12,6 +12,8 @@
 
 #ifndef NANA_GUI_WIDGET_CHECKBOX_HPP
 #define NANA_GUI_WIDGET_CHECKBOX_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include "widget.hpp"
 #include <vector>
 #include <memory>
@@ -106,5 +108,6 @@ namespace drawerbase
 		std::vector<element_tag> ui_container_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/widgets/combox.hpp b/include/nana/gui/widgets/combox.hpp
index 4d22a30e..7e478557 100644
--- a/include/nana/gui/widgets/combox.hpp
+++ b/include/nana/gui/widgets/combox.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_WIDGETS_COMBOX_HPP
 #define NANA_GUI_WIDGETS_COMBOX_HPP
+#include <nana/push_ignore_diagnostic>
 #include "widget.hpp"
 #include "float_listbox.hpp"
 #include "skeletons/text_editor_part.hpp"
@@ -227,4 +228,5 @@ namespace nana
 		nana::any * _m_anyobj(std::size_t pos, bool alloc_if_empty) const override;
 	};
 }
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/date_chooser.hpp b/include/nana/gui/widgets/date_chooser.hpp
index a4e685e1..4d02324b 100644
--- a/include/nana/gui/widgets/date_chooser.hpp
+++ b/include/nana/gui/widgets/date_chooser.hpp
@@ -12,7 +12,7 @@
 
 #ifndef NANA_GUI_WIDGETS_DATE_CHOOSER_HPP
 #define NANA_GUI_WIDGETS_DATE_CHOOSER_HPP
-
+#include <nana/push_ignore_diagnostic>
 #include "widget.hpp"
 #include <nana/datetime.hpp>
 
@@ -114,5 +114,6 @@ namespace nana
 		void weekstr(unsigned index, const ::std::string&);///<Set the week strings which will be displayed for day, index is in range of [0, 6]
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/widgets/detail/tree_cont.hpp b/include/nana/gui/widgets/detail/tree_cont.hpp
index 3618b814..c9684ba6 100644
--- a/include/nana/gui/widgets/detail/tree_cont.hpp
+++ b/include/nana/gui/widgets/detail/tree_cont.hpp
@@ -12,6 +12,7 @@
 #ifndef NANA_GUI_WIDGETS_DETAIL_TREE_CONT_HPP
 #define NANA_GUI_WIDGETS_DETAIL_TREE_CONT_HPP
 #include <stack>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -515,4 +516,6 @@ namespace detail
 }//end namespace detail
 }//end namespace widgets
 }//end namesace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/float_listbox.hpp b/include/nana/gui/widgets/float_listbox.hpp
index 79a66e2f..590479fd 100644
--- a/include/nana/gui/widgets/float_listbox.hpp
+++ b/include/nana/gui/widgets/float_listbox.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_WIDGETS_FLOAT_LISTBOX_HPP
 #define NANA_GUI_WIDGETS_FLOAT_LISTBOX_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include "widget.hpp"
 #include <vector>
@@ -101,5 +102,6 @@ namespace nana
 		std::size_t index() const;
 	};
 }
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/widgets/label.hpp b/include/nana/gui/widgets/label.hpp
index 6b71bd88..f8c97eb9 100644
--- a/include/nana/gui/widgets/label.hpp
+++ b/include/nana/gui/widgets/label.hpp
@@ -12,8 +12,9 @@
 
 #ifndef NANA_GUI_WIDGET_LABEL_HPP
 #define NANA_GUI_WIDGET_LABEL_HPP
-#include "widget.hpp"
 
+#include "widget.hpp"
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -80,4 +81,6 @@ namespace nana
 		void _m_caption(native_string_type&&) override;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/listbox.hpp b/include/nana/gui/widgets/listbox.hpp
index f2c97612..0f1e24e2 100644
--- a/include/nana/gui/widgets/listbox.hpp
+++ b/include/nana/gui/widgets/listbox.hpp
@@ -17,6 +17,8 @@
 
 #ifndef NANA_GUI_WIDGETS_LISTBOX_HPP
 #define NANA_GUI_WIDGETS_LISTBOX_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include "widget.hpp"
 #include "detail/inline_widget.hpp"
 #include <nana/pat/abstract_factory.hpp>
@@ -720,4 +722,6 @@ By \a clicking on one header the list get \a reordered, first up, and then down
 		void _m_erase_key(nana::detail::key_interface*);
 	};
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/menu.hpp b/include/nana/gui/widgets/menu.hpp
index 335796d4..02372079 100644
--- a/include/nana/gui/widgets/menu.hpp
+++ b/include/nana/gui/widgets/menu.hpp
@@ -17,6 +17,8 @@
 #include <nana/gui/timer.hpp>
 #include <nana/pat/cloneable.hpp>
 
+#include <nana/push_ignore_diagnostic>
+
 namespace nana
 {
 	namespace drawerbase
@@ -198,4 +200,6 @@ namespace nana
 	detail::popuper menu_popuper(menu&, mouse = mouse::right_button);
 	detail::popuper menu_popuper(menu&, window owner, const point&, mouse = mouse::right_button);
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/menubar.hpp b/include/nana/gui/widgets/menubar.hpp
index 365d9b1c..3c799936 100644
--- a/include/nana/gui/widgets/menubar.hpp
+++ b/include/nana/gui/widgets/menubar.hpp
@@ -14,6 +14,7 @@
 #define NANA_GUI_WIDGETS_MENUBAR_HPP
 #include "widget.hpp"
 #include "menu.hpp"
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -117,4 +118,6 @@ namespace nana
 		::nana::event_handle evt_resized_{nullptr};
 	};//end class menubar
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/picture.hpp b/include/nana/gui/widgets/picture.hpp
index bd40f0e0..fc8e9c63 100644
--- a/include/nana/gui/widgets/picture.hpp
+++ b/include/nana/gui/widgets/picture.hpp
@@ -13,6 +13,8 @@
  */
 #ifndef NANA_GUI_WIDGET_PICTURE_HPP
 #define NANA_GUI_WIDGET_PICTURE_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include "widget.hpp"
 
 namespace nana
@@ -67,4 +69,6 @@ namespace nana
 		bool transparent() const;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/scroll.hpp b/include/nana/gui/widgets/scroll.hpp
index 96d1b023..458ce877 100644
--- a/include/nana/gui/widgets/scroll.hpp
+++ b/include/nana/gui/widgets/scroll.hpp
@@ -15,6 +15,7 @@
 
 #include "widget.hpp"
 #include <nana/gui/timer.hpp>
+#include <nana/push_ignore_diagnostic>
 
 namespace nana
 {
@@ -502,4 +503,5 @@ namespace nana
 		}
 	};//end class scroll
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/widgets/skeletons/text_editor.hpp b/include/nana/gui/widgets/skeletons/text_editor.hpp
index 3189cd18..46a023fd 100644
--- a/include/nana/gui/widgets/skeletons/text_editor.hpp
+++ b/include/nana/gui/widgets/skeletons/text_editor.hpp
@@ -13,6 +13,8 @@
 
 #ifndef NANA_GUI_SKELETONS_TEXT_EDITOR_HPP
 #define NANA_GUI_SKELETONS_TEXT_EDITOR_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include "textbase.hpp"
 #include "text_editor_part.hpp"
 #include <nana/gui/widgets/scroll.hpp>
@@ -372,5 +374,7 @@ namespace nana{	namespace widgets
 }//end namespace widgets
 }//end namespace nana
 
+#include <nana/pop_ignore_diagnostic>
+
 #endif
 
diff --git a/include/nana/gui/widgets/skeletons/text_token_stream.hpp b/include/nana/gui/widgets/skeletons/text_token_stream.hpp
index 7fbd3801..c5d5a5e7 100644
--- a/include/nana/gui/widgets/skeletons/text_token_stream.hpp
+++ b/include/nana/gui/widgets/skeletons/text_token_stream.hpp
@@ -22,6 +22,8 @@
 #include <stack>
 #include <stdexcept>
 
+#include <nana/push_ignore_diagnostic>
+
 namespace nana{ namespace widgets{	namespace skeletons
 {
 	//The tokens are defined for representing a text, the tokens are divided
@@ -941,4 +943,5 @@ namespace nana{ namespace widgets{	namespace skeletons
 }//end namespace skeletons
 }//end namespace widgets
 }//end namepsace nana
+#include <nana/pop_ignore_diagnostic>
 #endif	//NANA_GUI_WIDGETS_SKELETONS_TEXT_TOKEN_STREAM
diff --git a/include/nana/gui/widgets/skeletons/textbase.hpp b/include/nana/gui/widgets/skeletons/textbase.hpp
index 99cc5799..1c4085b2 100644
--- a/include/nana/gui/widgets/skeletons/textbase.hpp
+++ b/include/nana/gui/widgets/skeletons/textbase.hpp
@@ -13,6 +13,7 @@
 
 #ifndef NANA_GUI_WIDGET_DETAIL_TEXTBASE_HPP
 #define NANA_GUI_WIDGET_DETAIL_TEXTBASE_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include <nana/charset.hpp>
 #include <nana/basic_types.hpp>
@@ -536,4 +537,6 @@ namespace skeletons
 }//end namespace detail
 }//end namespace widgets
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/slider.hpp b/include/nana/gui/widgets/slider.hpp
index c5372034..21b92d47 100644
--- a/include/nana/gui/widgets/slider.hpp
+++ b/include/nana/gui/widgets/slider.hpp
@@ -11,6 +11,9 @@
  */
 #ifndef NANA_GUI_WIDGETS_SLIDER_HPP
 #define NANA_GUI_WIDGETS_SLIDER_HPP
+
+#include <nana/push_ignore_diagnostic>
+
 #include "widget.hpp"
 #include <nana/pat/cloneable.hpp>
 
@@ -141,5 +144,6 @@ namespace nana
 		bool transparent() const;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/widgets/spinbox.hpp b/include/nana/gui/widgets/spinbox.hpp
index fd60f070..e090426a 100644
--- a/include/nana/gui/widgets/spinbox.hpp
+++ b/include/nana/gui/widgets/spinbox.hpp
@@ -12,6 +12,8 @@
 
 #ifndef NANA_GUI_WIDGET_SPINBOX_HPP
 #define NANA_GUI_WIDGET_SPINBOX_HPP
+
+#include <nana/push_ignore_diagnostic>
 #include "widget.hpp"
 #include "skeletons/text_editor_part.hpp"
 
@@ -110,5 +112,5 @@ namespace nana
 		void _m_caption(native_string_type&&);
 	}; //end class spinbox
 }//end namespace nana
-
+#include <nana/pop_ignore_diagnostic>
 #endif //NANA_GUI_WIDGET_SPINBOX_HPP
diff --git a/include/nana/gui/widgets/tabbar.hpp b/include/nana/gui/widgets/tabbar.hpp
index b7a88789..c7d20ad1 100644
--- a/include/nana/gui/widgets/tabbar.hpp
+++ b/include/nana/gui/widgets/tabbar.hpp
@@ -13,6 +13,8 @@
  */
 #ifndef NANA_GUI_WIDGET_TABBAR_HPP
 #define NANA_GUI_WIDGET_TABBAR_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include "widget.hpp"
 #include <nana/pat/cloneable.hpp>
 #include <nana/any.hpp>
@@ -410,5 +412,6 @@ namespace nana
 		void erase(std::size_t pos, bool close_attached = true);
 	};
 }
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/include/nana/gui/widgets/textbox.hpp b/include/nana/gui/widgets/textbox.hpp
index 69fda830..4ce43a3d 100644
--- a/include/nana/gui/widgets/textbox.hpp
+++ b/include/nana/gui/widgets/textbox.hpp
@@ -11,6 +11,8 @@
  */
 #ifndef NANA_GUI_WIDGET_TEXTBOX_HPP
 #define NANA_GUI_WIDGET_TEXTBOX_HPP
+#include <nana/push_ignore_diagnostic>
+
 #include <nana/gui/widgets/widget.hpp>
 #include "skeletons/textbase_export_interface.hpp"
 #include "skeletons/text_editor_part.hpp"
@@ -214,4 +216,6 @@ namespace nana
 		void _m_typeface(const paint::font&) override;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/toolbar.hpp b/include/nana/gui/widgets/toolbar.hpp
index 8a4d3a40..24f27b32 100644
--- a/include/nana/gui/widgets/toolbar.hpp
+++ b/include/nana/gui/widgets/toolbar.hpp
@@ -12,6 +12,7 @@
 
 #ifndef NANA_GUI_WIDGET_TOOLBAR_HPP
 #define NANA_GUI_WIDGET_TOOLBAR_HPP
+#include <nana/push_ignore_diagnostic>
 
 #include "widget.hpp"
 
@@ -101,4 +102,6 @@ namespace nana
 		bool   detached_;
 	};
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/treebox.hpp b/include/nana/gui/widgets/treebox.hpp
index 487812ea..69477824 100644
--- a/include/nana/gui/widgets/treebox.hpp
+++ b/include/nana/gui/widgets/treebox.hpp
@@ -17,6 +17,8 @@
 
 #ifndef NANA_GUI_WIDGETS_TREEBOX_HPP
 #define NANA_GUI_WIDGETS_TREEBOX_HPP
+
+#include <nana/push_ignore_diagnostic>
 #include "widget.hpp"
 #include "detail/compset.hpp"
 #include "detail/tree_cont.hpp"
@@ -452,4 +454,6 @@ namespace nana
 		item_proxy selected() const; ///< returns the selected node
 	};//end class treebox
 }//end namespace nana
+#include <nana/pop_ignore_diagnostic>
+
 #endif
diff --git a/include/nana/gui/widgets/widget.hpp b/include/nana/gui/widgets/widget.hpp
index 1fdb48fa..5caa7510 100644
--- a/include/nana/gui/widgets/widget.hpp
+++ b/include/nana/gui/widgets/widget.hpp
@@ -12,6 +12,8 @@
 
 #ifndef NANA_GUI_WIDGET_HPP
 #define NANA_GUI_WIDGET_HPP
+
+#include <nana/push_ignore_diagnostic>
 #include "../basis.hpp"
 #include "../programming_interface.hpp"
 #include <nana/internationalization.hpp>
@@ -524,4 +526,6 @@ namespace nana
 		std::unique_ptr<scheme_type> scheme_;
 	};//end class widget_object<category::frame_tag>
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/gui/wvl.hpp b/include/nana/gui/wvl.hpp
index 4da60f25..0500a6a0 100644
--- a/include/nana/gui/wvl.hpp
+++ b/include/nana/gui/wvl.hpp
@@ -15,7 +15,6 @@
 #ifndef NANA_GUI_WVL_HPP
 #define NANA_GUI_WVL_HPP
 
-
 #include "programming_interface.hpp"
 #include "screen.hpp"
 #include "widgets/form.hpp"
diff --git a/include/nana/pat/cloneable.hpp b/include/nana/pat/cloneable.hpp
index cf3d9d81..7cff2638 100644
--- a/include/nana/pat/cloneable.hpp
+++ b/include/nana/pat/cloneable.hpp
@@ -13,6 +13,7 @@
 #ifndef NANA_PAT_CLONEABLE_HPP
 #define NANA_PAT_CLONEABLE_HPP
 
+#include <nana/push_ignore_diagnostic>
 #include <nana/c++defines.hpp>
 #include <cstddef>
 #include <type_traits>
@@ -96,10 +97,15 @@ namespace nana{ namespace pat{
 
 		typedef int inner_bool::* operator_bool_t;
 
+		/*
 		template<typename U>
-		struct member_enabled
+		struct member_enabled		//deprecated
 			: public std::enable_if<(!std::is_base_of<cloneable, typename std::remove_reference<U>::type>::value) && std::is_base_of<base_t, typename std::remove_reference<U>::type>::value, int>
 		{};
+		*/
+
+		template<typename U>
+		using member_enabled = std::enable_if<(!std::is_base_of<cloneable, typename std::remove_reference<U>::type>::value) && std::is_base_of<base_t, typename std::remove_reference<U>::type>::value, int>;
 	public:
 		cloneable() noexcept = default;
 
@@ -207,5 +213,5 @@ namespace nana{ namespace pat{
 	using mutable_cloneable = cloneable<T, true>;
 }//end namespace pat
 }//end namespace nana
-
+#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/include/nana/pop_ignore_diagnostic b/include/nana/pop_ignore_diagnostic
new file mode 100644
index 00000000..23c39a69
--- /dev/null
+++ b/include/nana/pop_ignore_diagnostic
@@ -0,0 +1,5 @@
+
+#if (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 6)
+#	pragma GCC diagnostic pop
+#endif
+
diff --git a/include/nana/push_ignore_diagnostic b/include/nana/push_ignore_diagnostic
new file mode 100644
index 00000000..9ba463ad
--- /dev/null
+++ b/include/nana/push_ignore_diagnostic
@@ -0,0 +1,4 @@
+#if (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 6)
+#	pragma GCC diagnostic push
+#	pragma GCC diagnostic ignored "-Weffc++"
+#endif
diff --git a/include/nana/unicode_bidi.hpp b/include/nana/unicode_bidi.hpp
index 766edf46..71a5f882 100644
--- a/include/nana/unicode_bidi.hpp
+++ b/include/nana/unicode_bidi.hpp
@@ -1,6 +1,8 @@
 #ifndef NANA_UNICODE_BIDI_HPP
 #define NANA_UNICODE_BIDI_HPP
 #include <vector>
+#include <nana/push_ignore_diagnostic>
+
 
 namespace nana
 {
@@ -71,5 +73,6 @@ namespace nana
 	};
 
 }
+#include <nana/pop_ignore_diagnostic>
 
 #endif
diff --git a/source/audio/player.cpp b/source/audio/player.cpp
index e86f1798..5ede06a4 100644
--- a/source/audio/player.cpp
+++ b/source/audio/player.cpp
@@ -1,5 +1,8 @@
+
+#include <nana/push_ignore_diagnostic>
 #include <nana/audio/player.hpp>
 
+
 #ifdef NANA_ENABLE_AUDIO
 
 #include <nana/audio/detail/audio_stream.hpp>
@@ -67,4 +70,4 @@ namespace nana{	namespace audio
 }//end namespace audio
 }//end namespace nana
 
-#endif //NANA_ENABLE_AUDIO
\ No newline at end of file
+#endif //NANA_ENABLE_AUDIO
diff --git a/source/charset.cpp b/source/charset.cpp
index ddf7207f..686f8182 100644
--- a/source/charset.cpp
+++ b/source/charset.cpp
@@ -344,11 +344,11 @@ namespace nana
 		{
 		public:
 			charset_string(const std::string& s)
-				: data_(s), is_unicode_(false)
+				: data_(s)
 			{}
 
 			charset_string(std::string&& s)
-				: data_(std::move(s)), is_unicode_(false)
+				: data_(std::move(s))
 			{}
 
 			charset_string(const std::string& s, unicode encoding)
@@ -501,9 +501,9 @@ namespace nana
 			}
 		private:
 			std::string data_;
-			std::wstring wdata_for_move_;
-			bool is_unicode_;
-			unicode utf_x_;
+			std::wstring wdata_for_move_{};
+			bool is_unicode_{ false };
+			unicode utf_x_{ unicode::utf8 };
 		};
 
 		class charset_wstring
@@ -950,11 +950,11 @@ namespace nana
 		{
 		public:
 			charset_string(const std::string& s)
-				: data_(s), is_unicode_(false)
+				: data_(s)
 			{}
 
 			charset_string(std::string&& s)
-				: data_(std::move(s)), is_unicode_(false)
+				: data_(std::move(s))
 			{}
 
 			charset_string(const std::string& s, unicode encoding)
@@ -1122,9 +1122,9 @@ namespace nana
 			}
 		private:
 			std::string data_;
-			std::wstring wdata_for_move_;
-			bool is_unicode_;
-			unicode utf_x_;
+			std::wstring wdata_for_move_{};
+			bool is_unicode_{ false };
+			unicode utf_x_{ unicode::utf8 };
 		};
 
 
@@ -1195,7 +1195,7 @@ namespace nana
 			}
 		private:
 			std::wstring data_;
-			std::string data_for_move_;
+			std::string data_for_move_{};
 		};
 #endif
 	}
diff --git a/source/datetime.cpp b/source/datetime.cpp
index 849ec940..21cfe962 100644
--- a/source/datetime.cpp
+++ b/source/datetime.cpp
@@ -17,62 +17,65 @@
 #include <cassert>
 
 namespace {
-	void localtime(struct tm& tm)
+	std::tm localtime()
 	{
 #if defined(NANA_WINDOWS) && !defined(NANA_MINGW)
 		time_t t;
 		::time(&t);
+		std::tm tm;
 		if(localtime_s(&tm, &t) != 0)
-		{
 			assert(false);
-		}
+
+		return tm;
 #else
 		time_t t = std::time(nullptr);
 		struct tm * tm_addr = std::localtime(&t);
 		assert(tm_addr);
-		tm = *tm_addr;
+		
+		return *tm_addr;
 #endif
 	}
+	
+	::nana::date::value to_dateval(const std::tm& t)
+	{
+		return {static_cast<unsigned>(t.tm_year + 1900), static_cast<unsigned>(t.tm_mon + 1), static_cast<unsigned>(t.tm_mday)};
+	}
+
+	::nana::time::value to_timeval(const std::tm& t)
+	{
+		return {static_cast<unsigned>(t.tm_hour), static_cast<unsigned>(t.tm_min), static_cast<unsigned>(t.tm_sec)};
+	}
+
 } // namespace anonymous
 
 namespace nana
 {
-	//class date
+	//class date		
 		void date::set(const std::tm& t)
 		{
-			value_.year = t.tm_year + 1900;
-			value_.month = t.tm_mon + 1;
-			value_.day = t.tm_mday;
+			value_ = to_dateval(t);
 		}
 
 		date::date()
+			: value_(to_dateval(*std::localtime(nullptr)))
 		{
-			struct tm t;
-			localtime(t);
-			set(t);
 		}
 
 		date::date(const std::tm& t)
+			: value_(to_dateval(t))
 		{
-			set(t);
 		}
 
 		date::date(int year, int month, int day)
+			: value_({static_cast<unsigned>(year), static_cast<unsigned>(month), static_cast<unsigned>(day)})
 		{
 			if(1601 <= year && year < 30827 && 0 < month && month < 13 && day > 0)
 			{
 				if(day <= static_cast<int>(date::month_days(year, month)))
-				{
-					value_.year = year;
-					value_.month = month;
-					value_.day = day;
 					return;
-				}
 			}
 
-			struct tm t;
-			localtime(t);
-			set(t);
+			set(localtime());
 		}
 
 		date date::operator - (int off) const
@@ -258,40 +261,27 @@ namespace nana
 	//class time
 		void time::set(const std::tm& t)
 		{
-			value_.hour = t.tm_hour;
-			value_.minute = t.tm_min;
-			value_.second = t.tm_sec;
+			value_ = to_timeval(t);
 		}
 
 		time::time()
-			: value_{}
+			: value_(to_timeval(localtime()))
 		{
-			struct tm t;
-			localtime(t);
-			set(t);
 		}
 
 		time::time(const std::tm& t)
+			: value_(to_timeval(t))
 		{
-			value_.hour = t.tm_hour;
-			value_.minute = t.tm_min;
-			value_.second = t.tm_sec;
 		}
 
 		time::time(unsigned hour, unsigned minute, unsigned second)
+			: value_({hour, minute, second})
 		{
 			if(hour < 24 && minute < 60 && second < 62)
-			{
-				value_.hour = hour;
-				value_.minute = minute;
-				value_.second = second;
 				return;
-			}
-			struct tm t;
-			localtime(t);
-			set(t);
-		}
 
+			set(localtime());
+		}
 		const time::value& time::read() const
 		{
 			return value_;
diff --git a/source/detail/platform_spec_posix.cpp b/source/detail/platform_spec_posix.cpp
index accaeed2..a2121991 100644
--- a/source/detail/platform_spec_posix.cpp
+++ b/source/detail/platform_spec_posix.cpp
@@ -16,6 +16,9 @@
 
 #include <nana/detail/platform_spec_selector.hpp>
 #if defined(NANA_POSIX) && defined(NANA_X11)
+
+#include <nana/push_ignore_diagnostic>
+
 #include <X11/Xlocale.h>
 #include <locale>
 #include <map>
@@ -1414,4 +1417,6 @@ namespace detail
 	}
 }//end namespace detail
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
 #endif //NANA_POSIX && NANA_X11
diff --git a/source/gui/detail/basic_window.cpp b/source/gui/detail/basic_window.cpp
index 9c1a5ae0..693a9bf7 100644
--- a/source/gui/detail/basic_window.cpp
+++ b/source/gui/detail/basic_window.cpp
@@ -207,10 +207,10 @@ namespace nana
 				{
 					switch(categ)
 					{
-					case category::root_tag::value:
+					case category::flags::root:
 						attribute.root = new attr_root_tag;
 						break;
-					case category::frame_tag::value:
+					case category::flags::frame:
 						attribute.frame = new attr_frame_tag;
 						break;
 					default:
@@ -222,10 +222,10 @@ namespace nana
 				{
 					switch(category)
 					{
-					case category::root_tag::value:
+					case category::flags::root:
 						delete attribute.root;
 						break;
-					case category::frame_tag::value:
+					case category::flags::frame:
 						delete attribute.frame;
 						break;
 					default: break;
@@ -236,7 +236,7 @@ namespace nana
 			//basic_window
 			//@brief: constructor for the root window
 			basic_window::basic_window(basic_window* owner, std::unique_ptr<widget_notifier_interface>&& wdg_notifier, category::root_tag**)
-				: widget_notifier(std::move(wdg_notifier)), other(category::root_tag::value)
+				: widget_notifier(std::move(wdg_notifier)), other(category::flags::root)
 			{
 				drawer.bind(this);
 				_m_init_pos_and_size(nullptr, rectangle());
@@ -256,7 +256,7 @@ namespace nana
 			//@brief: bind a native window and baisc_window
 			void basic_window::bind_native_window(native_window_type wd, unsigned width, unsigned height, unsigned extra_width, unsigned extra_height, nana::paint::graphics& graphics)
 			{
-				if(category::root_tag::value == this->other.category)
+				if(category::flags::root == this->other.category)
 				{
 					this->root = wd;
 					dimension.width = width;
@@ -270,7 +270,7 @@ namespace nana
 
 			void basic_window::frame_window(native_window_type wd)
 			{
-				if(category::frame_tag::value == this->other.category)
+				if(category::flags::frame == this->other.category)
 					other.attribute.frame->container = wd;
 			}
 
@@ -357,12 +357,12 @@ namespace nana
 
 			void basic_window::_m_initialize(basic_window* agrparent)
 			{
-				if(other.category == category::root_tag::value)
+				if(category::flags::root == other.category)
 				{
 					if(agrparent && (nana::system::this_thread_id() != agrparent->thread_id))
 						agrparent = nullptr;
 
-					while(agrparent && (agrparent->other.category != category::root_tag::value))
+					while(agrparent && (category::flags::root != agrparent->other.category))
 						agrparent = agrparent->parent;
 				
 					owner = agrparent;
diff --git a/source/gui/detail/window_layout.cpp b/source/gui/detail/window_layout.cpp
index d2556323..10a94e4d 100644
--- a/source/gui/detail/window_layout.cpp
+++ b/source/gui/detail/window_layout.cpp
@@ -53,7 +53,7 @@ namespace nana
 					//get the root graphics
 					auto& graph = *(wd->root_graph);
 
-					if (wd->other.category != category::lite_widget_tag::value)
+					if (category::flags::lite_widget != wd->other.category)
 						graph.bitblt(vr, wd->drawer.graphics, nana::point(vr.x - wd->pos_root.x, vr.y - wd->pos_root.y));
 
 					_m_paste_children(wd, is_child_refreshed, have_refreshed, vr, graph, nana::point());
@@ -66,7 +66,7 @@ namespace nana
 							nana::point p_src;
 							for (auto & el : blocks)
 							{
-								if (el.window->other.category == category::frame_tag::value)
+								if (category::flags::frame == el.window->other.category)
 								{
 									native_window_type container = el.window->other.attribute.frame->container;
 									native_interface::refresh_window(container);
@@ -158,7 +158,7 @@ namespace nana
 
 			bool window_layout::enable_effects_bground(core_window_t * wd, bool enabled)
 			{
-				if (wd->other.category != category::widget_tag::value)
+				if (category::flags::widget != wd->other.category)
 					return false;
 
 				if (false == enabled)
@@ -199,11 +199,11 @@ namespace nana
 				nana::point rpos{ wd->pos_root };
 				auto & glass_buffer = wd->other.glass_buffer;
 
-				if (wd->parent->other.category == category::lite_widget_tag::value)
+				if (category::flags::lite_widget == wd->parent->other.category)
 				{
 					std::vector<core_window_t*> layers;
 					core_window_t * beg = wd->parent;
-					while (beg && (beg->other.category == category::lite_widget_tag::value))
+					while (beg && (category::flags::lite_widget == beg->other.category))
 					{
 						layers.push_back(beg);
 						beg = beg->parent;
@@ -229,7 +229,7 @@ namespace nana
 							nana::rectangle ovlp;
 							if (child->visible && overlap(r, rectangle(child->pos_owner, child->dimension), ovlp))
 							{
-								if (child->other.category != category::lite_widget_tag::value)
+								if (category::flags::lite_widget != child->other.category)
 									glass_buffer.bitblt(nana::rectangle(ovlp.x - pre->pos_owner.x, ovlp.y - pre->pos_owner.y, ovlp.width, ovlp.height), child->drawer.graphics, nana::point(ovlp.x - child->pos_owner.x, ovlp.y - child->pos_owner.y));
 								ovlp.x += pre->pos_root.x;
 								ovlp.y += pre->pos_root.y;
@@ -250,7 +250,7 @@ namespace nana
 					nana::rectangle ovlp;
 					if (child->visible && overlap(r_of_wd, rectangle{ child->pos_owner, child->dimension }, ovlp))
 					{
-						if (child->other.category != category::lite_widget_tag::value)
+						if (category::flags::lite_widget != child->other.category)
 							glass_buffer.bitblt(nana::rectangle{ ovlp.x - wd->pos_owner.x, ovlp.y - wd->pos_owner.y, ovlp.width, ovlp.height }, child->drawer.graphics, nana::point(ovlp.x - child->pos_owner.x, ovlp.y - child->pos_owner.y));
 
 						ovlp.x += wd->pos_root.x;
@@ -285,7 +285,7 @@ namespace nana
 						if (overlap(nana::rectangle{ child->pos_root, child->dimension }, parent_rect, rect))
 						{
 							bool have_child_refreshed = false;
-							if (child->other.category != category::lite_widget_tag::value)
+							if (category::flags::lite_widget != child->other.category)
 							{
 								if (is_child_refreshed && (false == child->flags.refreshing))
 								{
diff --git a/source/gui/detail/window_manager.cpp b/source/gui/detail/window_manager.cpp
index 6096d543..66d0def6 100644
--- a/source/gui/detail/window_manager.cpp
+++ b/source/gui/detail/window_manager.cpp
@@ -312,7 +312,7 @@ namespace detail
 				wd->bind_native_window(result.native_handle, result.width, result.height, result.extra_width, result.extra_height, value->root_graph);
 				impl_->wd_register.insert(wd, wd->thread_id);
 
-				if (owner && owner->other.category == category::frame_tag::value)
+				if (owner && (category::flags::frame == owner->other.category))
 					insert_frame(owner, wd);
 
 				bedrock::inc_window(wd->thread_id);
@@ -344,7 +344,7 @@ namespace detail
 			{
 				//Thread-Safe Required!
 				std::lock_guard<decltype(mutex_)> lock(mutex_);
-				if(frame->other.category == category::frame_tag::value)
+				if(category::flags::frame == frame->other.category)
 					frame->other.attribute.frame->attach.push_back(wd);
 				return true;
 			}
@@ -357,9 +357,9 @@ namespace detail
 			{
 				//Thread-Safe Required!
 				std::lock_guard<decltype(mutex_)> lock(mutex_);
-				if(frame->other.category == category::frame_tag::value)
+				if(category::flags::frame == frame->other.category)
 				{
-					if (impl_->wd_register.available(wd) && wd->other.category == category::root_tag::value && wd->root != frame->root)
+					if (impl_->wd_register.available(wd) && (category::flags::root == wd->other.category) && wd->root != frame->root)
 					{
 						frame->other.attribute.frame->attach.push_back(wd->root);
 						return true;
@@ -399,7 +399,7 @@ namespace detail
 			if (wd->flags.destroying)
 				return;
 
-			if(wd->other.category == category::root_tag::value)
+			if(category::flags::root == wd->other.category)
 			{
 				auto &brock = bedrock::instance();
 				arg_unload arg;
@@ -464,7 +464,7 @@ namespace detail
 			std::lock_guard<decltype(mutex_)> lock(mutex_);
 			if (impl_->wd_register.available(wd) == false)	return;
 
-			if((wd->other.category == category::root_tag::value) || (wd->other.category != category::frame_tag::value))
+			if((category::flags::root == wd->other.category) || (category::flags::frame != wd->other.category))
 			{
 				impl_->misc_register.erase(wd->root);
 				impl_->wd_register.remove(wd);
@@ -484,7 +484,7 @@ namespace detail
 				std::lock_guard<decltype(mutex_)> lock(mutex_);
 				if (impl_->wd_register.available(wd))
 				{
-					if(wd->other.category == category::root_tag::value)
+					if(category::flags::root == wd->other.category)
 						native_interface::window_icon(wd->root, small_icon, big_icon);
 				}
 			}
@@ -504,9 +504,9 @@ namespace detail
 				native_window_type nv = nullptr;
 				switch(wd->other.category)
 				{
-				case category::root_tag::value:
+				case category::flags::root:
 					nv = wd->root; break;
-				case category::frame_tag::value:
+				case category::flags::frame:
 					nv = wd->other.attribute.frame->container; break;
 				default:	//category::widget_tag, category::lite_widget_tag
 					break;
@@ -703,7 +703,7 @@ namespace detail
 
 			wd->dimension = sz;
 
-			if(category::lite_widget_tag::value != wd->other.category)
+			if(category::flags::lite_widget != wd->other.category)
 			{
 				bool graph_state = wd->drawer.graphics.empty();
 				wd->drawer.graphics.make(sz);
@@ -714,13 +714,13 @@ namespace detail
 				if(graph_state != wd->drawer.graphics.empty())
 					wd->drawer.typeface_changed();
 
-				if(category::root_tag::value == wd->other.category)
+				if(category::flags::root == wd->other.category)
 				{
 					wd->root_graph->make(sz);
 					if(false == passive)
 						native_interface::window_size(wd->root, sz + nana::size(wd->extra_width, wd->extra_height));
 				}
-				else if(category::frame_tag::value == wd->other.category)
+				else if(category::flags::frame == wd->other.category)
 				{
 					native_interface::window_size(wd->other.attribute.frame->container, sz);
 					for(auto natwd : wd->other.attribute.frame->attach)
@@ -850,6 +850,9 @@ namespace detail
 					{
 						window_layer::paint(wd, false, refresh_tree);
 						this->map(wd, force_copy_to_screen);
+
+						wd->drawer.graphics.save_as_file("d:\\button.bmp");
+						wd->root_graph->save_as_file("d:\\button_root.bmp");
 					}
 					else if (effects::edge_nimbus::none != wd->effect.edge_nimbus)
 					{
@@ -1379,7 +1382,7 @@ namespace detail
 						root_attr->menubar = nullptr;
 				}
 
-				if (wd->other.category == category::root_tag::value)
+				if (wd->other.category == category::flags::root)
 				{
 					root_runtime(wd->root)->shortkeys.clear();
 					wd->other.attribute.root->focus = nullptr;
@@ -1459,7 +1462,7 @@ namespace detail
 				}
 			}
 
-			if (wd->other.category == category::frame_tag::value)
+			if (category::flags::frame == wd->other.category)
 			{
 				//remove the frame handle from the WM frames manager.
 				utl::erase(root_attr->frames, wd);
@@ -1565,7 +1568,7 @@ namespace detail
 			wd->drawer.detached();
 			wd->widget_notifier->destroy();
 
-			if(wd->other.category == category::frame_tag::value)
+			if(category::flags::frame == wd->other.category)
 			{
 				//The frame widget does not have an owner, and close their element windows without activating owner.
 				//close the frame container window, it's a native window.
@@ -1616,7 +1619,7 @@ namespace detail
 			for(auto i = wd->children.rbegin(); i != wd->children.rend(); ++i)
 			{
 				core_window_t* child = *i;
-				if((child->other.category != category::root_tag::value) && _m_effective(child, pos))
+				if((child->other.category != category::flags::root) && _m_effective(child, pos))
 				{
 					child = _m_find(child, pos);
 					if(child)
diff --git a/source/gui/place.cpp b/source/gui/place.cpp
index e712b063..c8e6ea9e 100644
--- a/source/gui/place.cpp
+++ b/source/gui/place.cpp
@@ -15,6 +15,7 @@
 #include <cmath>
 #include <map>
 #include <deque>
+#include <nana/push_ignore_diagnostic>
 #include <nana/deploy.hpp>
 #include <nana/gui/place.hpp>
 #include <nana/gui/programming_interface.hpp>
@@ -2851,3 +2852,5 @@ namespace nana
 	}
 	//end class place
 }//end namespace nana
+
+#include <nana/pop_ignore_diagnostic>
diff --git a/source/internationalization.cpp b/source/internationalization.cpp
index 1210826e..8ac35899 100644
--- a/source/internationalization.cpp
+++ b/source/internationalization.cpp
@@ -10,6 +10,8 @@
 *	@file: nana/internationalization.cpp
 */
 
+#include <nana/push_ignore_diagnostic>
+
 #include <nana/internationalization.hpp>
 #include <nana/gui/widgets/widget.hpp>
 #include <unordered_map>
@@ -513,3 +515,5 @@ namespace nana
 	}
 	//end class i18n_eval
 }
+
+#include <nana/pop_ignore_diagnostic>
diff --git a/source/paint/detail/image_process_provider.cpp b/source/paint/detail/image_process_provider.cpp
index 1c0c61ab..414d68dc 100644
--- a/source/paint/detail/image_process_provider.cpp
+++ b/source/paint/detail/image_process_provider.cpp
@@ -1,3 +1,4 @@
+#include <nana/push_ignore_diagnostic>
 #include <nana/paint/detail/image_process_provider.hpp>
 
 #include <nana/paint/detail/image_processor.hpp>
diff --git a/source/paint/image.cpp b/source/paint/image.cpp
index 3d23e3f5..529c5c44 100644
--- a/source/paint/image.cpp
+++ b/source/paint/image.cpp
@@ -11,7 +11,7 @@
  *	@contributors:
  *		nabijaczleweli(pr#106)
  */
-
+#include <nana/push_ignore_diagnostic>
 #include <nana/detail/platform_spec_selector.hpp>
 #include <nana/paint/image.hpp>
 #include <algorithm>
diff --git a/source/paint/image_process_selector.cpp b/source/paint/image_process_selector.cpp
index f95ab20e..9dc76e23 100644
--- a/source/paint/image_process_selector.cpp
+++ b/source/paint/image_process_selector.cpp
@@ -1,3 +1,4 @@
+#include <nana/push_ignore_diagnostic>
 #include <nana/paint/image_process_selector.hpp>
 
 namespace nana