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diff --git a/src/mscorlib/src/System/Int32.cs b/src/mscorlib/src/System/Int32.cs
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+++ b/src/mscorlib/src/System/Int32.cs
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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+**
+**
+** Purpose: A representation of a 32 bit 2's complement
+** integer.
+**
+**
+===========================================================*/
+namespace System {
+
+ using System;
+ using System.Globalization;
+ using System.Runtime;
+ using System.Runtime.InteropServices;
+ using System.Diagnostics.Contracts;
+
+[Serializable]
+[System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)]
+[System.Runtime.InteropServices.ComVisible(true)]
+ public struct Int32 : IComparable, IFormattable, IConvertible
+ , IComparable<Int32>, IEquatable<Int32>
+ {
+ internal int m_value;
+
+ public const int MaxValue = 0x7fffffff;
+ public const int MinValue = unchecked((int)0x80000000);
+
+ // 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 Int32, this method throws an ArgumentException.
+ //
+ public int CompareTo(Object value) {
+ if (value == null) {
+ return 1;
+ }
+ if (value is Int32) {
+ // Need to use compare because subtraction will wrap
+ // to positive for very large neg numbers, etc.
+ int i = (int)value;
+ if (m_value < i) return -1;
+ if (m_value > i) return 1;
+ return 0;
+ }
+ throw new ArgumentException (Environment.GetResourceString("Arg_MustBeInt32"));
+ }
+
+ public int CompareTo(int value) {
+ // Need to use compare because subtraction will wrap
+ // to positive for very large neg numbers, etc.
+ if (m_value < value) return -1;
+ if (m_value > value) return 1;
+ return 0;
+ }
+
+ public override bool Equals(Object obj) {
+ if (!(obj is Int32)) {
+ return false;
+ }
+ return m_value == ((Int32)obj).m_value;
+ }
+
+ [System.Runtime.Versioning.NonVersionable]
+ public bool Equals(Int32 obj)
+ {
+ return m_value == obj;
+ }
+
+ // The absolute value of the int contained.
+ public override int GetHashCode() {
+ return m_value;
+ }
+
+ [System.Security.SecuritySafeCritical] // auto-generated
+ [Pure]
+ public override String ToString() {
+ Contract.Ensures(Contract.Result<String>() != null);
+ return Number.FormatInt32(m_value, null, NumberFormatInfo.CurrentInfo);
+ }
+
+ [System.Security.SecuritySafeCritical] // auto-generated
+ [Pure]
+ public String ToString(String format) {
+ Contract.Ensures(Contract.Result<String>() != null);
+ return Number.FormatInt32(m_value, format, NumberFormatInfo.CurrentInfo);
+ }
+
+ [System.Security.SecuritySafeCritical] // auto-generated
+ [Pure]
+ public String ToString(IFormatProvider provider) {
+ Contract.Ensures(Contract.Result<String>() != null);
+ return Number.FormatInt32(m_value, null, NumberFormatInfo.GetInstance(provider));
+ }
+
+ [Pure]
+ [System.Security.SecuritySafeCritical] // auto-generated
+ public String ToString(String format, IFormatProvider provider) {
+ Contract.Ensures(Contract.Result<String>() != null);
+ return Number.FormatInt32(m_value, format, NumberFormatInfo.GetInstance(provider));
+ }
+
+ [Pure]
+ public static int Parse(String s) {
+ return Number.ParseInt32(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo);
+ }
+
+ [Pure]
+ public static int Parse(String s, NumberStyles style) {
+ NumberFormatInfo.ValidateParseStyleInteger(style);
+ return Number.ParseInt32(s, style, NumberFormatInfo.CurrentInfo);
+ }
+
+ // Parses an integer from a String in the given style. If
+ // a NumberFormatInfo isn't specified, the current culture's
+ // NumberFormatInfo is assumed.
+ //
+ [Pure]
+ public static int Parse(String s, IFormatProvider provider) {
+ return Number.ParseInt32(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider));
+ }
+
+ // Parses an integer from a String in the given style. If
+ // a NumberFormatInfo isn't specified, the current culture's
+ // NumberFormatInfo is assumed.
+ //
+ [Pure]
+ public static int Parse(String s, NumberStyles style, IFormatProvider provider) {
+ NumberFormatInfo.ValidateParseStyleInteger(style);
+ return Number.ParseInt32(s, style, NumberFormatInfo.GetInstance(provider));
+ }
+
+ // Parses an integer from a String. Returns false rather
+ // than throwing exceptin if input is invalid
+ //
+ [Pure]
+ public static bool TryParse(String s, out Int32 result) {
+ return Number.TryParseInt32(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
+ }
+
+ // Parses an integer from a String in the given style. Returns false rather
+ // than throwing exceptin if input is invalid
+ //
+ [Pure]
+ public static bool TryParse(String s, NumberStyles style, IFormatProvider provider, out Int32 result) {
+ NumberFormatInfo.ValidateParseStyleInteger(style);
+ return Number.TryParseInt32(s, style, NumberFormatInfo.GetInstance(provider), out result);
+ }
+
+ //
+ // IConvertible implementation
+ //
+
+ [Pure]
+ public TypeCode GetTypeCode() {
+ return TypeCode.Int32;
+ }
+
+ /// <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 Convert.ToInt16(m_value);
+ }
+
+ /// <internalonly/>
+ ushort IConvertible.ToUInt16(IFormatProvider provider) {
+ return Convert.ToUInt16(m_value);
+ }
+
+ /// <internalonly/>
+ int IConvertible.ToInt32(IFormatProvider provider) {
+ return 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", "Int32", "DateTime"));
+ }
+
+ /// <internalonly/>
+ Object IConvertible.ToType(Type type, IFormatProvider provider) {
+ return Convert.DefaultToType((IConvertible)this, type, provider);
+ }
+ }
+}