first commit

include/platform/memory/bit_field.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NBITFIELD__
+#define	__NBITFIELD__
+
+
+		#include "ntypes.h"
+
+
+namespace GS {
+
+class	BitField
+{
+		uint		v;
+
+public:
+
+		BitField	&operator &= (uint b) { v &= b; return *this; }
+		BitField	&operator |= (uint b) { v |= b; return *this; }
+		BitField	&operator = (uint b) { v = b; return *this; }
+
+		BitField	&operator &= (const BitField &b) { v &= b.v; return *this; }
+		BitField	&operator |= (const BitField &b) { v |= b.v; return *this; }
+		BitField	&operator = (const BitField &b) { v = b.v; return *this; }
+
+		bool		operator == (const BitField &b) const { return v == b.v; }
+		bool		operator != (const BitField &b) const { return v != b.v; }
+
+inline	uint		Get() const
+		{
+			return v;
+		}
+inline	uint		Set(uint b)
+		{
+			v |= b;
+			return v;
+		}
+inline	uint		Remove(uint b)
+		{
+			v &= ~b;
+			return v;
+		}
+
+inline	uint		Raise(uint b, bool raise = true)
+		{
+			return raise ? Set(b) : Remove(b);
+		}
+inline	bool		IsSet(uint b) const { return asbool(v & b); }
+
+		BitField() : v(0) {}
+};
+
+}
+
+
+#endif	// __NBITFIELD__