Byte.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Byte.cs / 1305376 / Byte.cs

                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  Byte 
**
** 
** Purpose: This class will encapsulate a byte and provide an
**          Object representation of it.
**
** 
===========================================================*/
 
namespace System { 

    using System; 
    using System.Globalization;
///#if GENERICS_WORK
///    using System.Numerics;
///#endif 
    using System.Runtime.InteropServices;
    using System.Diagnostics.Contracts; 
 
    // The Byte class extends the Value class and
    // provides object representation of the byte primitive type. 
    //
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable]
[System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)] 
#if GENERICS_WORK
    public struct Byte : IComparable, IFormattable, IConvertible 
        , IComparable, IEquatable 
///     , IArithmetic
#if false // ugly hack to fix syntax for TrimSrc parser, which ignores #if directives 
    {
    }
#endif
#else 
    public struct Byte : IComparable, IFormattable, IConvertible
#endif 
    { 
        private byte m_value;
 
        // The maximum value that a Byte may represent: 255.
        public const byte MaxValue = (byte)0xFF;

        // The minimum value that a Byte may represent: 0. 
        public const byte MinValue = 0;
 
 
        // 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 byte, this method throws an ArgumentException.
        // 
        public int CompareTo(Object value) {
            if (value == null) { 
                return 1; 
            }
            if (!(value is Byte)) { 
                throw new ArgumentException(Environment.GetResourceString("Arg_MustBeByte"));
            }

            return m_value - (((Byte)value).m_value); 
        }
 
        public int CompareTo(Byte value) { 
            return m_value - value;
        } 

        // Determines whether two Byte objects are equal.
        public override bool Equals(Object obj) {
            if (!(obj is Byte)) { 
                return false;
            } 
            return m_value == ((Byte)obj).m_value; 
        }
 
        public bool Equals(Byte obj)
        {
            return m_value == obj;
        } 

        // Gets a hash code for this instance. 
        public override int GetHashCode() { 
            return m_value;
        } 

        [Pure]
        public static byte Parse(String s) {
            return Parse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo); 
        }
 
        [Pure] 
        public static byte Parse(String s, NumberStyles style) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Parse(s, style, NumberFormatInfo.CurrentInfo);
        }

        [Pure] 
        public static byte Parse(String s, IFormatProvider provider) {
            return Parse(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider)); 
        } 

 
        // Parses an unsigned byte from a String in the given style.  If
        // a NumberFormatInfo isn't specified, the current culture's
        // NumberFormatInfo is assumed.
        [Pure] 
        public static byte Parse(String s, NumberStyles style, IFormatProvider provider) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Parse(s, style, NumberFormatInfo.GetInstance(provider)); 
        }
 
        private static byte 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_Byte"), e); 
            }
 
            if (i < MinValue || i > MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
            return (byte)i;
        }
 
        public static bool TryParse(String s, out Byte result) {
            return TryParse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result); 
        } 

        public static bool TryParse(String s, NumberStyles style, IFormatProvider provider, out Byte result) { 
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return TryParse(s, style, NumberFormatInfo.GetInstance(provider), out result);
        }
 
        private static bool TryParse(String s, NumberStyles style, NumberFormatInfo info, out Byte result) {
            result = 0; 
            int i; 
            if (!Number.TryParseInt32(s, style, info, out i)) {
                return false; 
            }
            if (i < MinValue || i > MaxValue) {
                return false;
            } 
            result = (byte) i;
            return true; 
        } 

        [Pure] 
        [System.Security.SecuritySafeCritical]  // auto-generated
        public override String ToString() {
            Contract.Ensures(Contract.Result() != null);
            return Number.FormatInt32(m_value, null, NumberFormatInfo.CurrentInfo); 
        }
 
        [Pure] 
        [System.Security.SecuritySafeCritical]  // auto-generated
        public String ToString(String format) { 
            Contract.Ensures(Contract.Result() != null);
            return Number.FormatInt32(m_value, format, NumberFormatInfo.CurrentInfo);
        }
 
        [Pure]
        [System.Security.SecuritySafeCritical]  // auto-generated 
        public String ToString(IFormatProvider provider) { 
            Contract.Ensures(Contract.Result() != 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() != null); 
            return Number.FormatInt32(m_value, format, NumberFormatInfo.GetInstance(provider)); 
        }
 
        //
        // IConvertible implementation
        //
        [Pure] 
        public TypeCode GetTypeCode() {
            return TypeCode.Byte; 
        } 

 
        /// 
        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 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 Convert.ToInt64(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(Environment.GetResourceString("InvalidCast_FromTo", "Byte", "DateTime"));
        } 
 
        /// 
        Object IConvertible.ToType(Type type, IFormatProvider provider) { 
            return Convert.DefaultToType((IConvertible)this, type, provider);
        }

///#if GENERICS_WORK 
///        //
///        // IArithmetic implementation 
///        // 
///
///        ///  
///        Byte IArithmetic.AbsoluteValue(out bool overflowed) {
///            overflowed = false;
///            return m_value;
///        } 
///
///        ///  
///        Byte IArithmetic.Negate(out bool overflowed) { 
///            overflowed = (m_value != 0);
///            return m_value; 
///        }
///
///        /// 
///        Byte IArithmetic.Sign(out bool overflowed) { 
///            overflowed = false;
///            return (byte) (m_value == 0 ? 0 : 1); 
///        } 
///
///        ///  
///        Byte IArithmetic.Add(Byte addend, out bool overflowed) {
///            uint u = ((uint)m_value) + addend;
///            overflowed = (u > MaxValue);
///            return (byte) u; 
///        }
/// 
///        ///  
///        Byte IArithmetic.Subtract(Byte subtrahend, out bool overflowed) {
///            int i = ((int)m_value) - subtrahend; 
///            overflowed = (i < MinValue);
///            return (byte) i;
///        }
/// 
///        /// 
///        Byte IArithmetic.Multiply(Byte multiplier, out bool overflowed) { 
///            uint u = ((uint)m_value) * multiplier; 
///            overflowed = (u > MaxValue);
///            return (byte) u; 
///        }
///
///
///        ///  
///        Byte IArithmetic.Divide(Byte divisor, out bool overflowed) {
///            overflowed = false; 
///            return (byte) (m_value / divisor);  // divide by zero will fail 
///        }
/// 
///        /// 
///        Byte IArithmetic.DivideRemainder(Byte divisor, out Byte remainder, out bool overflowed) {
///            overflowed = false;
///            remainder = (byte) (m_value % divisor); 
///            return (byte) (m_value / divisor);  // divide by zero will fail
///        } 
/// 
///        /// 
///        Byte IArithmetic.Remainder(Byte divisor, out bool overflowed) { 
///            overflowed = false;
///            return (byte) (m_value % divisor);
///        }
/// 
///        /// 
///        ArithmeticDescriptor IArithmetic.GetDescriptor() { 
///            if (s_descriptor == null) { 
///                s_descriptor = new ByteArithmeticDescriptor( ArithmeticCapabilities.One
///                                                           | ArithmeticCapabilities.Zero 
///                                                           | ArithmeticCapabilities.MaxValue
///                                                           | ArithmeticCapabilities.MinValue
///                                                           | ArithmeticCapabilities.Unsigned);
///            } 
///            return s_descriptor;
///        } 
/// 
///        private static ByteArithmeticDescriptor s_descriptor;
/// 
///        class ByteArithmeticDescriptor : ArithmeticDescriptor {
///
///            public ByteArithmeticDescriptor(ArithmeticCapabilities capabilities) : base(capabilities) {}
/// 
///            public override Byte One {
///                get { 
///                    return (Byte) 1; 
///                }
///            } 
///
///            public override Byte Zero {
///                get {
///                    return (Byte) 0; 
///                }
///            } 
/// 
///            public override Byte MinValue {
///                get { 
///                    return Byte.MinValue;
///                }
///            }
/// 
///            public override Byte MaxValue {
///                get { 
///                    return Byte.MaxValue; 
///                }
///            } 
///        }
///#endif // #if GENERICS_WORK
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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