Int64.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Int64.cs / 1 / Int64.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  Int64.cs 
**
** 
** Purpose: This class will encapsulate a long and provide an
**          Object representation of it.
**
** 
===========================================================*/
namespace System { 
 
    using System;
    using System.Globalization; 
    using System.Runtime.InteropServices;

    [Serializable, System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)]
[System.Runtime.InteropServices.ComVisible(true)] 
    public struct Int64 : IComparable, IFormattable, IConvertible
#if GENERICS_WORK 
        , IComparable, IEquatable 
#endif
    { 
        internal long m_value;

        public const long MaxValue = 0x7fffffffffffffffL;
        public const long MinValue = unchecked((long)0x8000000000000000L); 

        // 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 Int64, this method throws an ArgumentException.
        //
        public int CompareTo(Object value) {
            if (value == null) { 
                return 1;
            } 
            if (value is Int64) { 
                // Need to use compare because subtraction will wrap
                // to positive for very large neg numbers, etc. 
                long i = (long)value;
                if (m_value < i) return -1;
                if (m_value > i) return 1;
                return 0; 
            }
            throw new ArgumentException (Environment.GetResourceString("Arg_MustBeInt64")); 
        } 

        public int CompareTo(Int64 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 Int64)) { 
                return false;
            }
            return m_value == ((Int64)obj).m_value;
        } 

        public bool Equals(Int64 obj) 
        { 
            return m_value == obj;
        } 

        // The value of the lower 32 bits XORed with the uppper 32 bits.
        public override int GetHashCode() {
            return (unchecked((int)((long)m_value)) ^ (int)(m_value >> 32)); 
        }
 
        public override String ToString() { 
            return Number.FormatInt64(m_value, null, NumberFormatInfo.CurrentInfo);
        } 

 	public String ToString(IFormatProvider provider) {
            return Number.FormatInt64(m_value, null, NumberFormatInfo.GetInstance(provider));
        } 

        public String ToString(String format) { 
            return Number.FormatInt64(m_value, format, NumberFormatInfo.CurrentInfo); 
        }
 
        public String ToString(String format, IFormatProvider provider) {
            return Number.FormatInt64(m_value, format, NumberFormatInfo.GetInstance(provider));
        }
 
        public static long Parse(String s) {
            return Number.ParseInt64(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo); 
        } 

        public static long Parse(String s, NumberStyles style) { 
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Number.ParseInt64(s, style, NumberFormatInfo.CurrentInfo);
        }
 
        public static long Parse(String s, IFormatProvider provider) {
            return Number.ParseInt64(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider)); 
        } 

 
    	// Parses a long from a String in the given style.  If
    	// a NumberFormatInfo isn't specified, the current culture's
    	// NumberFormatInfo is assumed.
    	// 
    	public static long Parse(String s, NumberStyles style, IFormatProvider provider) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Number.ParseInt64(s, style, NumberFormatInfo.GetInstance(provider)); 
        }
 
        public static Boolean TryParse(String s, out Int64 result) {
            return Number.TryParseInt64(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
        }
 
        public static Boolean TryParse(String s, NumberStyles style, IFormatProvider provider, out Int64 result) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Number.TryParseInt64(s, style, NumberFormatInfo.GetInstance(provider), out result); 
        }
 
        //
        // IValue implementation
        //
 
        public TypeCode GetTypeCode() {
            return TypeCode.Int64; 
        } 

        ///  
        bool IConvertible.ToBoolean(IFormatProvider provider) {
            return Convert.ToBoolean(m_value);
        }
 
        /// 
        char IConvertible.ToChar(IFormatProvider provider) { 
            return Convert.ToChar(m_value); 
        }
 
        /// 
        sbyte IConvertible.ToSByte(IFormatProvider provider) {
            return Convert.ToSByte(m_value);
        } 

        ///  
        byte IConvertible.ToByte(IFormatProvider provider) { 
            return Convert.ToByte(m_value);
        } 

        /// 
        short IConvertible.ToInt16(IFormatProvider provider) {
            return Convert.ToInt16(m_value); 
        }
 
        ///  
        ushort IConvertible.ToUInt16(IFormatProvider provider) {
            return Convert.ToUInt16(m_value); 
        }

        /// 
        int IConvertible.ToInt32(IFormatProvider provider) { 
            return Convert.ToInt32(m_value);
        } 
 
        /// 
        uint IConvertible.ToUInt32(IFormatProvider provider) { 
            return Convert.ToUInt32(m_value);
        }

        ///  
        long IConvertible.ToInt64(IFormatProvider provider) {
            return m_value; 
        } 

        ///  
        ulong IConvertible.ToUInt64(IFormatProvider provider) {
            return Convert.ToUInt64(m_value);
        }
 
        /// 
        float IConvertible.ToSingle(IFormatProvider provider) { 
            return Convert.ToSingle(m_value); 
        }
 
        /// 
        double IConvertible.ToDouble(IFormatProvider provider) {
            return Convert.ToDouble(m_value);
        } 

        ///  
        Decimal IConvertible.ToDecimal(IFormatProvider provider) { 
            return Convert.ToDecimal(m_value);
        } 

        /// 
        DateTime IConvertible.ToDateTime(IFormatProvider provider) {
            throw new InvalidCastException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("InvalidCast_FromTo"), "Int64", "DateTime")); 
        }
 
        ///  
        Object IConvertible.ToType(Type type, IFormatProvider provider) {
            return Convert.DefaultToType((IConvertible)this, type, provider); 
        }
    }
}

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