http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/flags.h

@@ -0,0 +1,165 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/flags.h
+// Purpose:     a bitset suited for replacing the current style flags
+// Author:      Stefan Csomor
+// Modified by:
+// Created:     27/07/03
+// RCS-ID:      $Id: flags.h 35650 2005-09-23 12:56:45Z MR $
+// Copyright:   (c) 2003 Stefan Csomor
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_SETH__
+#define _WX_SETH__
+
+// wxBitset should be applied to an enum, then this can be used like
+// bitwise operators but keeps the type safety and information, the
+// enums must be in a sequence , their value determines the bit position
+// that they represent
+// The api is made as close as possible to <bitset>
+
+template <class T> class wxBitset
+{
+    friend class wxEnumData ;
+public:
+    // creates a wxBitset<> object with all flags initialized to 0
+    wxBitset() { m_data = 0; }
+
+    // created a wxBitset<> object initialized according to the bits of the
+    // integral value val
+    wxBitset(unsigned long val) { m_data = val ; }
+
+    // copies the content in the new wxBitset<> object from another one
+    wxBitset(const wxBitset &src) { m_data = src.m_data; }
+
+    // creates a wxBitset<> object that has the specific flag set
+    wxBitset(const T el) { m_data |= 1 << el; }
+
+    // returns the integral value that the bits of this object represent
+    unsigned long to_ulong() const { return m_data ; }
+
+    // assignment
+    wxBitset &operator =(const wxBitset &rhs)
+    {
+        m_data = rhs.m_data;
+        return *this;
+    }
+
+    // bitwise or operator, sets all bits that are in rhs and leaves
+    // the rest unchanged
+    wxBitset &operator |=(const wxBitset &rhs)
+    {
+        m_data |= rhs.m_data;
+        return *this;
+    }
+
+    // bitwsie exclusive-or operator, toggles the value of all bits
+    // that are set in bits and leaves all others unchanged
+    wxBitset &operator ^=(const wxBitset &rhs) // difference
+    {
+        m_data ^= rhs.m_data;
+        return *this;
+    }
+
+    // bitwise and operator, resets all bits that are not in rhs and leaves
+    // all others unchanged
+    wxBitset &operator &=(const wxBitset &rhs) // intersection
+    {
+        m_data &= rhs.m_data;
+        return *this;
+    }
+
+    // bitwise or operator, returns a new bitset that has all bits set that set are in
+    // bitset2 or in this bitset
+    wxBitset operator |(const wxBitset &bitset2) const // union
+    {
+        wxBitset<T> s;
+        s.m_data = m_data | bitset2.m_data;
+        return s;
+    }
+
+    // bitwise exclusive-or operator, returns a new bitset that has all bits set that are set either in
+    // bitset2 or in this bitset but not in both
+    wxBitset operator ^(const wxBitset &bitset2) const // difference
+    {
+        wxBitset<T> s;
+        s.m_data = m_data ^ bitset2.m_data;
+        return s;
+    }
+
+    // bitwise and operator, returns a new bitset that has all bits set that are set both in
+    // bitset2 and in this bitset
+    wxBitset operator &(const wxBitset &bitset2) const // intersection
+    {
+        wxBitset<T> s;
+        s.m_data = m_data & bitset2.m_data;
+        return s;
+    }
+
+    // sets appropriate the bit to true
+    wxBitset& set(const T el) //Add element
+    {
+        m_data |= 1 << el;
+        return *this;
+    }
+
+    // clears the appropriate flag to false
+    wxBitset& reset(const T el) //remove element
+    {
+        m_data &= ~(1 << el);
+        return *this;
+    }
+
+    // clear all flags
+    wxBitset& reset()
+    {
+        m_data = 0;
+        return *this;
+    }
+
+    // true if this flag is set
+    bool test(const T el) const
+    {
+        return (m_data & (1 << el)) ? true : false;
+    }
+
+    // true if no flag is set
+    bool none() const
+    {
+        return m_data == 0;
+    }
+
+    // true if any flag is set
+    bool any() const
+    {
+        return m_data != 0;
+    }
+
+    // true if both have the same flags
+    bool operator ==(const wxBitset &rhs) const
+    {
+        return m_data == rhs.m_data;
+    }
+
+    // true if both differ in their flags set
+    bool operator !=(const wxBitset &rhs) const
+    {
+        return !operator==(rhs);
+    }
+
+    bool operator[] (const T el) const { return test(el) ; }
+
+private :
+    unsigned long m_data;
+};
+
+#define WX_DEFINE_FLAGS( flags ) \
+    class WXDLLEXPORT flags \
+    {\
+    public : \
+        flags(long data=0) :m_data(data) {} \
+        long m_data ;\
+        bool operator ==(const flags &rhs) const { return m_data == rhs.m_data; }\
+    } ;
+
+#endif