1 files changed, 266 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Int16.cs b/src/mscorlib/src/System/Int16.cs
new file mode 100644
index 0000000000..aeb80c21a7
--- /dev/null
+++ b/src/mscorlib/src/System/Int16.cs
@@ -0,0 +1,266 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+/*============================================================
+**
+**
+**
+** Purpose: This class will encapsulate a short and provide an
+**          Object representation of it.
+**
+** 
+===========================================================*/
+
+namespace System {
+    
+    using System;
+    using System.Globalization;
+    using System.Runtime.InteropServices;
+    using System.Diagnostics.Contracts;
+
+[System.Runtime.InteropServices.ComVisible(true)]
+[Serializable]
+[System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)]
+    public struct Int16 : IComparable, IFormattable, IConvertible
+        , IComparable<Int16>, IEquatable<Int16>
+    {
+        internal short m_value;
+    
+        public const short MaxValue = (short)0x7FFF;
+        public const short MinValue = unchecked((short)0x8000);
+        
+        // Compares this object to another object, returning an integer that
+        // indicates the relationship. 
+        // Returns a value less than zero if this  object
+        // null is considered to be less than any instance.
+        // If object is not of type Int16, this method throws an ArgumentException.
+        // 
+        public int CompareTo(Object value) {
+            if (value == null) {
+                return 1;
+            }
+    
+            if (value is Int16) {
+                return m_value - ((Int16)value).m_value;
+            }
+    
+            throw new ArgumentException(Environment.GetResourceString("Arg_MustBeInt16"));
+        }
+
+        public int CompareTo(Int16 value) {
+            return m_value - value;
+        }
+    
+        public override bool Equals(Object obj) {
+            if (!(obj is Int16)) {
+                return false;
+            }
+            return m_value == ((Int16)obj).m_value;
+        }
+
+        [System.Runtime.Versioning.NonVersionable]
+        public bool Equals(Int16 obj)
+        {
+            return m_value == obj;
+        }
+
+        // Returns a HashCode for the Int16
+        public override int GetHashCode() {
+            return ((int)((ushort)m_value) | (((int)m_value) << 16));
+        }
+    
+
+        [System.Security.SecuritySafeCritical]  // auto-generated
+        public override String ToString() {
+            Contract.Ensures(Contract.Result<String>() != null);
+            return Number.FormatInt32(m_value, null, NumberFormatInfo.CurrentInfo);
+        }
+        
+        [System.Security.SecuritySafeCritical]  // auto-generated
+        public String ToString(IFormatProvider provider) {
+            Contract.Ensures(Contract.Result<String>() != null);
+            return Number.FormatInt32(m_value, null, NumberFormatInfo.GetInstance(provider));
+        }        
+
+        public String ToString(String format) {
+            Contract.Ensures(Contract.Result<String>() != null);
+            return ToString(format, NumberFormatInfo.CurrentInfo);
+        }        
+    
+        public String ToString(String format, IFormatProvider provider) {
+            Contract.Ensures(Contract.Result<String>() != null);
+            return ToString(format, NumberFormatInfo.GetInstance(provider));
+        }
+
+        [System.Security.SecuritySafeCritical]  // auto-generated
+        private String ToString(String format, NumberFormatInfo info) {
+            Contract.Ensures(Contract.Result<String>() != null);
+
+            if (m_value<0 && format!=null && format.Length>0 && (format[0]=='X' || format[0]=='x')) {
+                uint temp = (uint)(m_value & 0x0000FFFF);
+                return Number.FormatUInt32(temp,format, info);
+            }
+            return Number.FormatInt32(m_value, format, info);
+        }
+    
+        public static short Parse(String s) {
+            return Parse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo);
+        }
+    
+        public static short Parse(String s, NumberStyles style) {
+            NumberFormatInfo.ValidateParseStyleInteger(style);
+            return Parse(s, style, NumberFormatInfo.CurrentInfo);
+        }
+
+        public static short Parse(String s, IFormatProvider provider) {
+            return Parse(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider));
+        }
+
+        public static short Parse(String s, NumberStyles style, IFormatProvider provider) {
+            NumberFormatInfo.ValidateParseStyleInteger(style);
+            return Parse(s, style, NumberFormatInfo.GetInstance(provider));
+        }
+        
+        private static short Parse(String s, NumberStyles style, NumberFormatInfo info) {        
+
+            int i = 0;
+            try {
+                i = Number.ParseInt32(s, style, info);
+            }
+            catch(OverflowException e) {
+                throw new OverflowException(Environment.GetResourceString("Overflow_Int16"), e);
+            }
+
+            // We need this check here since we don't allow signs to specified in hex numbers. So we fixup the result
+            // for negative numbers
+            if ((style & NumberStyles.AllowHexSpecifier) != 0) { // We are parsing a hexadecimal number
+                if ((i < 0) || (i > UInt16.MaxValue)) {
+                    throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
+                }
+                return (short)i;
+            }
+                
+            if (i < MinValue || i > MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
+            return (short)i;
+        }
+
+        public static bool TryParse(String s, out Int16 result) {
+            return TryParse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
+        }
+
+        public static bool TryParse(String s, NumberStyles style, IFormatProvider provider, out Int16 result) {
+            NumberFormatInfo.ValidateParseStyleInteger(style);
+            return TryParse(s, style, NumberFormatInfo.GetInstance(provider), out result);
+        }
+        
+        private static bool TryParse(String s, NumberStyles style, NumberFormatInfo info, out Int16 result) {
+
+            result = 0;
+            int i;
+            if (!Number.TryParseInt32(s, style, info, out i)) {
+                return false;
+            }
+
+            // We need this check here since we don't allow signs to specified in hex numbers. So we fixup the result
+            // for negative numbers
+            if ((style & NumberStyles.AllowHexSpecifier) != 0) { // We are parsing a hexadecimal number
+                if ((i < 0) || i > UInt16.MaxValue) {
+                    return false;
+                }
+                result = (Int16) i;
+                return true;
+            }
+                
+            if (i < MinValue || i > MaxValue) {
+                return false;
+            }
+            result = (Int16) i;
+            return true;
+        }
+
+        //
+        // IConvertible implementation
+        // 
+        
+        public TypeCode GetTypeCode() {
+            return TypeCode.Int16;
+        }
+
+
+        /// <internalonly/>
+        bool IConvertible.ToBoolean(IFormatProvider provider) {
+            return Convert.ToBoolean(m_value);
+        }
+
+        /// <internalonly/>
+        char IConvertible.ToChar(IFormatProvider provider) {
+            return Convert.ToChar(m_value);
+        }
+
+        /// <internalonly/>
+        sbyte IConvertible.ToSByte(IFormatProvider provider) {
+            return Convert.ToSByte(m_value);
+        }
+
+        /// <internalonly/>
+        byte IConvertible.ToByte(IFormatProvider provider) {
+            return Convert.ToByte(m_value);
+        }
+
+        /// <internalonly/>
+        short IConvertible.ToInt16(IFormatProvider provider) {
+            return m_value;
+        }
+
+        /// <internalonly/>
+        ushort IConvertible.ToUInt16(IFormatProvider provider) {
+            return Convert.ToUInt16(m_value);
+        }
+
+        /// <internalonly/>
+        int IConvertible.ToInt32(IFormatProvider provider) {
+            return Convert.ToInt32(m_value);
+        }
+
+        /// <internalonly/>
+        uint IConvertible.ToUInt32(IFormatProvider provider) {
+            return Convert.ToUInt32(m_value);
+        }
+
+        /// <internalonly/>
+        long IConvertible.ToInt64(IFormatProvider provider) {
+            return Convert.ToInt64(m_value);
+        }
+
+        /// <internalonly/>
+        ulong IConvertible.ToUInt64(IFormatProvider provider) {
+            return Convert.ToUInt64(m_value);
+        }
+
+        /// <internalonly/>
+        float IConvertible.ToSingle(IFormatProvider provider) {
+            return Convert.ToSingle(m_value);
+        }
+
+        /// <internalonly/>
+        double IConvertible.ToDouble(IFormatProvider provider) {
+            return Convert.ToDouble(m_value);
+        }
+
+        /// <internalonly/>
+        Decimal IConvertible.ToDecimal(IFormatProvider provider) {
+            return Convert.ToDecimal(m_value);
+        }
+
+        /// <internalonly/>
+        DateTime IConvertible.ToDateTime(IFormatProvider provider) {
+            throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", "Int16", "DateTime"));
+        }
+
+        /// <internalonly/>
+        Object IConvertible.ToType(Type type, IFormatProvider provider) {
+            return Convert.DefaultToType((IConvertible)this, type, provider);
+        }
+
+    }
+}