Managed API: Refactoring and formatting.

Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>

src/api/dotnet/BitVecNum.cs

@@ -0,0 +1,115 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    IntNum.cs
+
+Abstract:
+
+    Z3 Managed API: Int Numerals
+
+Author:
+
+    Christoph Wintersteiger (cwinter) 2012-03-20
+
+Notes:
+    
+--*/
+using System;
+using System.Diagnostics.Contracts;
+
+#if !FRAMEWORK_LT_4
+using System.Numerics;
+#endif
+
+namespace Microsoft.Z3
+{
+    /// <summary>
+    /// Bit-vector numerals
+    /// </summary>
+    [ContractVerification(true)]
+    public class BitVecNum : BitVecExpr
+    {
+        /// <summary>
+        /// Retrieve the 64-bit unsigned integer value.
+        /// </summary>
+        public UInt64 UInt64
+        {
+            get
+            {
+                UInt64 res = 0;
+                if (Native.Z3_get_numeral_uint64(Context.nCtx, NativeObject, ref res) == 0)
+                    throw new Z3Exception("Numeral is not a 64 bit unsigned");
+                return res;
+            }
+        }
+
+        /// <summary>
+        /// Retrieve the int value.
+        /// </summary>
+        public int Int
+        {
+            get
+            {
+                int res = 0;
+                if (Native.Z3_get_numeral_int(Context.nCtx, NativeObject, ref res) == 0)
+                    throw new Z3Exception("Numeral is not an int");
+                return res;
+            }
+        }
+
+        /// <summary>
+        /// Retrieve the 64-bit int value.
+        /// </summary>
+        public Int64 Int64
+        {
+            get
+            {
+                Int64 res = 0;
+                if (Native.Z3_get_numeral_int64(Context.nCtx, NativeObject, ref res) == 0)
+                    throw new Z3Exception("Numeral is not an int64");
+                return res;
+            }
+        }
+
+        /// <summary>
+        /// Retrieve the int value.
+        /// </summary>
+        public uint UInt
+        {
+            get
+            {
+                uint res = 0;
+                if (Native.Z3_get_numeral_uint(Context.nCtx, NativeObject, ref res) == 0)
+                    throw new Z3Exception("Numeral is not a uint");
+                return res;
+            }
+        }
+
+#if !FRAMEWORK_LT_4
+        /// <summary>
+        /// Retrieve the BigInteger value.
+        /// </summary>
+        public BigInteger BigInteger
+        {
+            get
+            {
+                return BigInteger.Parse(this.ToString());
+            }
+        }
+#endif
+
+        /// <summary>
+        /// Returns a string representation of the numeral.
+        /// </summary>        
+        public override string ToString()
+        {
+            return Native.Z3_get_numeral_string(Context.nCtx, NativeObject);
+        }
+
+        #region Internal
+        internal BitVecNum(Context ctx, IntPtr obj) : base(ctx, obj) { Contract.Requires(ctx != null); }
+        #endregion
+    }
+}