1 files changed, 89 insertions, 0 deletions
diff --git a/include/lldb/Utility/Range.h b/include/lldb/Utility/Range.h
new file mode 100644
index 000000000000..1257adb719a1
--- /dev/null
+++ b/include/lldb/Utility/Range.h
@@ -0,0 +1,89 @@
+//===--------------------- Range.h ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef utility_Range_h_
+#define utility_Range_h_
+
+#include <stdint.h>
+#include <algorithm>
+
+namespace lldb_utility {
+    
+class Range
+{
+public:
+    
+    typedef uint64_t ValueType;
+    
+    static const ValueType OPEN_END = UINT64_MAX;
+    
+    Range (const Range& rng);
+    
+    Range (ValueType low = 0,
+           ValueType high = OPEN_END);
+
+    Range&
+    operator = (const Range& rhs);
+    
+    ValueType
+    GetLow ()
+    {
+        return m_low;
+    }
+    
+    ValueType
+    GetHigh ()
+    {
+        return m_high;
+    }
+    
+    void
+    SetLow (ValueType low)
+    {
+        m_low = low;
+    }
+    
+    void
+    SetHigh (ValueType high)
+    {
+        m_high = high;
+    }
+    
+    void
+    Flip ();
+    
+    void
+    Intersection (const Range& other);
+    
+    void
+    Union (const Range& other);
+    
+    typedef bool (*RangeCallback)(ValueType index);
+    
+    void
+    Iterate (RangeCallback callback);
+    
+    ValueType
+    GetSize ();
+    
+    bool
+    IsEmpty ();
+    
+private:
+    
+    void
+    InitRange ();
+    
+    ValueType m_low;
+    ValueType m_high;
+};
+    
+} // namespace lldb_private
+
+#endif // #ifndef utility_Range_h_