Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / SQLTypes / SQLByte.cs / 1 / SQLByte.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// junfang
// [....]
// [....]
//-----------------------------------------------------------------------------
//*************************************************************************
// @File: SqlByte.cs
//
// Create by: JunFang
//
// Purpose: Implementation of SqlByte which is equivalent to
// data type "smallint" in SQL Server
//
// Notes:
//
// History:
//
// 11/1/99 JunFang Created.
//
// @EndHeader@
//*************************************************************************
using System;
using System.Data.Common;
using System.Runtime.InteropServices;
using System.Globalization;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
namespace System.Data.SqlTypes {
///
///
/// Represents an 8-bit unsigned integer to be stored in
/// or retrieved from a database.
///
///
[Serializable]
[StructLayout(LayoutKind.Sequential)]
[XmlSchemaProvider("GetXsdType")]
public struct SqlByte : INullable, IComparable, IXmlSerializable {
private bool m_fNotNull; // false if null
private byte m_value;
private static readonly int x_iBitNotByteMax = ~0xff;
// constructor
// construct a Null
private SqlByte(bool fNull) {
m_fNotNull = false;
m_value = 0;
}
///
/// [To be supplied.]
///
public SqlByte(byte value) {
m_value = value;
m_fNotNull = true;
}
// INullable
///
/// [To be supplied.]
///
public bool IsNull {
get { return !m_fNotNull;}
}
// property: Value
///
/// [To be supplied.]
///
public byte Value {
get {
if (m_fNotNull)
return m_value;
else
throw new SqlNullValueException();
}
}
// Implicit conversion from byte to SqlByte
///
/// [To be supplied.]
///
public static implicit operator SqlByte(byte x) {
return new SqlByte(x);
}
// Explicit conversion from SqlByte to byte. Throw exception if x is Null.
///
/// [To be supplied.]
///
public static explicit operator byte(SqlByte x) {
return x.Value;
}
///
/// [To be supplied.]
///
public override String ToString() {
return IsNull ? SQLResource.NullString : m_value.ToString((IFormatProvider)null);
}
///
/// [To be supplied.]
///
public static SqlByte Parse(String s) {
if (s == SQLResource.NullString)
return SqlByte.Null;
else
return new SqlByte(Byte.Parse(s, (IFormatProvider)null));
}
// Unary operators
///
/// [To be supplied.]
///
public static SqlByte operator ~(SqlByte x) {
return x.IsNull ? Null : new SqlByte((byte)~x.m_value);
}
// Binary operators
// Arithmetic operators
///
/// [To be supplied.]
///
public static SqlByte operator +(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value + (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator -(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value - (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator *(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value * (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator /(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
return new SqlByte((byte)(x.m_value / y.m_value));
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
///
/// [To be supplied.]
///
public static SqlByte operator %(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
return new SqlByte((byte)(x.m_value % y.m_value));
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
// Bitwise operators
///
/// [To be supplied.]
///
public static SqlByte operator &(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value & y.m_value));
}
///
/// [To be supplied.]
///
public static SqlByte operator |(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value | y.m_value));
}
///
/// [To be supplied.]
///
public static SqlByte operator ^(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value ^ y.m_value));
}
// Implicit conversions
// Implicit conversion from SqlBoolean to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlBoolean x) {
return x.IsNull ? Null : new SqlByte((byte)(x.ByteValue));
}
// Explicit conversions
// Explicit conversion from SqlMoney to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlMoney x) {
return x.IsNull ? Null : new SqlByte(checked((byte)x.ToInt32()));
}
// Explicit conversion from SqlInt16 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt16 x) {
if (x.IsNull)
return Null;
if (x.Value > (short)Byte.MaxValue || x.Value < (short)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlInt32 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt32 x) {
if (x.IsNull)
return Null;
if (x.Value > (int)Byte.MaxValue || x.Value < (int)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlInt64 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt64 x) {
if (x.IsNull)
return Null;
if (x.Value > (long)Byte.MaxValue || x.Value < (long)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlSingle to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlSingle x) {
if (x.IsNull)
return Null;
if (x.Value > (float)Byte.MaxValue || x.Value < (float)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlDouble to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlDouble x) {
if (x.IsNull)
return Null;
if (x.Value > (double)Byte.MaxValue || x.Value < (double)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlDecimal to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlDecimal x) {
return(SqlByte)(SqlInt32)x;
}
// Implicit conversion from SqlString to SqlByte
// Throws FormatException or OverflowException if necessary.
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlString x) {
return x.IsNull ? Null : new SqlByte(Byte.Parse(x.Value, (IFormatProvider)null));
}
// Overloading comparison operators
///
/// [To be supplied.]
///
public static SqlBoolean operator==(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value == y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator!=(SqlByte x, SqlByte y) {
return ! (x == y);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value < y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value > y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<=(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value <= y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>=(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value >= y.m_value);
}
//--------------------------------------------------
// Alternative methods for overloaded operators
//--------------------------------------------------
// Alternative method for operator ~
public static SqlByte OnesComplement(SqlByte x) {
return ~x;
}
// Alternative method for operator +
public static SqlByte Add(SqlByte x, SqlByte y) {
return x + y;
}
// Alternative method for operator -
public static SqlByte Subtract(SqlByte x, SqlByte y) {
return x - y;
}
// Alternative method for operator *
public static SqlByte Multiply(SqlByte x, SqlByte y) {
return x * y;
}
// Alternative method for operator /
public static SqlByte Divide(SqlByte x, SqlByte y) {
return x / y;
}
// Alternative method for operator %
public static SqlByte Mod(SqlByte x, SqlByte y) {
return x % y;
}
public static SqlByte Modulus(SqlByte x, SqlByte y) {
return x % y;
}
// Alternative method for operator &
public static SqlByte BitwiseAnd(SqlByte x, SqlByte y) {
return x & y;
}
// Alternative method for operator |
public static SqlByte BitwiseOr(SqlByte x, SqlByte y) {
return x | y;
}
// Alternative method for operator ^
public static SqlByte Xor(SqlByte x, SqlByte y) {
return x ^ y;
}
// Alternative method for operator ==
public static SqlBoolean Equals(SqlByte x, SqlByte y) {
return (x == y);
}
// Alternative method for operator !=
public static SqlBoolean NotEquals(SqlByte x, SqlByte y) {
return (x != y);
}
// Alternative method for operator <
public static SqlBoolean LessThan(SqlByte x, SqlByte y) {
return (x < y);
}
// Alternative method for operator >
public static SqlBoolean GreaterThan(SqlByte x, SqlByte y) {
return (x > y);
}
// Alternative method for operator <=
public static SqlBoolean LessThanOrEqual(SqlByte x, SqlByte y) {
return (x <= y);
}
// Alternative method for operator >=
public static SqlBoolean GreaterThanOrEqual(SqlByte x, SqlByte y) {
return (x >= y);
}
// Alternative method for conversions.
public SqlBoolean ToSqlBoolean() {
return (SqlBoolean)this;
}
public SqlDouble ToSqlDouble() {
return (SqlDouble)this;
}
public SqlInt16 ToSqlInt16() {
return (SqlInt16)this;
}
public SqlInt32 ToSqlInt32() {
return (SqlInt32)this;
}
public SqlInt64 ToSqlInt64() {
return (SqlInt64)this;
}
public SqlMoney ToSqlMoney() {
return (SqlMoney)this;
}
public SqlDecimal ToSqlDecimal() {
return (SqlDecimal)this;
}
public SqlSingle ToSqlSingle() {
return (SqlSingle)this;
}
public SqlString ToSqlString() {
return (SqlString)this;
}
// IComparable
// Compares this object to another object, returning an integer that
// indicates the relationship.
// Returns a value less than zero if this < object, zero if this = object,
// or a value greater than zero if this > object.
// null is considered to be less than any instance.
// If object is not of same type, this method throws an ArgumentException.
///
/// [To be supplied.]
///
public int CompareTo(Object value) {
if (value is SqlByte) {
SqlByte i = (SqlByte)value;
return CompareTo(i);
}
throw ADP.WrongType(value.GetType(), typeof(SqlByte));
}
public int CompareTo(SqlByte value) {
// If both Null, consider them equal.
// Otherwise, Null is less than anything.
if (IsNull)
return value.IsNull ? 0 : -1;
else if (value.IsNull)
return 1;
if (this < value) return -1;
if (this > value) return 1;
return 0;
}
// Compares this instance with a specified object
///
/// [To be supplied.]
///
public override bool Equals(Object value) {
if (!(value is SqlByte)) {
return false;
}
SqlByte i = (SqlByte)value;
if (i.IsNull || IsNull)
return (i.IsNull && IsNull);
else
return (this == i).Value;
}
// For hashing purpose
///
/// [To be supplied.]
///
public override int GetHashCode() {
return IsNull ? 0 : Value.GetHashCode();
}
///
/// [To be supplied.]
///
XmlSchema IXmlSerializable.GetSchema() { return null; }
///
/// [To be supplied.]
///
void IXmlSerializable.ReadXml(XmlReader reader) {
string isNull = reader.GetAttribute("nil", XmlSchema.InstanceNamespace);
if (isNull != null && XmlConvert.ToBoolean(isNull)) {
m_fNotNull = false;
}
else {
m_value = XmlConvert.ToByte(reader.ReadElementString());
m_fNotNull = true;
}
}
///
/// [To be supplied.]
///
void IXmlSerializable.WriteXml(XmlWriter writer) {
if (IsNull) {
writer.WriteAttributeString("xsi", "nil", XmlSchema.InstanceNamespace, "true");
}
else {
writer.WriteString(XmlConvert.ToString(m_value));
}
}
///
/// [To be supplied.]
///
public static XmlQualifiedName GetXsdType(XmlSchemaSet schemaSet) {
return new XmlQualifiedName("unsignedByte", XmlSchema.Namespace);
}
///
/// [To be supplied.]
///
public static readonly SqlByte Null = new SqlByte(true);
///
/// [To be supplied.]
///
public static readonly SqlByte Zero = new SqlByte(0);
///
/// [To be supplied.]
///
public static readonly SqlByte MinValue = new SqlByte(Byte.MinValue);
///
/// [To be supplied.]
///
public static readonly SqlByte MaxValue = new SqlByte(Byte.MaxValue);
} // SqlByte
} // namespace System
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// junfang
// [....]
// [....]
//-----------------------------------------------------------------------------
//*************************************************************************
// @File: SqlByte.cs
//
// Create by: JunFang
//
// Purpose: Implementation of SqlByte which is equivalent to
// data type "smallint" in SQL Server
//
// Notes:
//
// History:
//
// 11/1/99 JunFang Created.
//
// @EndHeader@
//*************************************************************************
using System;
using System.Data.Common;
using System.Runtime.InteropServices;
using System.Globalization;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
namespace System.Data.SqlTypes {
///
///
/// Represents an 8-bit unsigned integer to be stored in
/// or retrieved from a database.
///
///
[Serializable]
[StructLayout(LayoutKind.Sequential)]
[XmlSchemaProvider("GetXsdType")]
public struct SqlByte : INullable, IComparable, IXmlSerializable {
private bool m_fNotNull; // false if null
private byte m_value;
private static readonly int x_iBitNotByteMax = ~0xff;
// constructor
// construct a Null
private SqlByte(bool fNull) {
m_fNotNull = false;
m_value = 0;
}
///
/// [To be supplied.]
///
public SqlByte(byte value) {
m_value = value;
m_fNotNull = true;
}
// INullable
///
/// [To be supplied.]
///
public bool IsNull {
get { return !m_fNotNull;}
}
// property: Value
///
/// [To be supplied.]
///
public byte Value {
get {
if (m_fNotNull)
return m_value;
else
throw new SqlNullValueException();
}
}
// Implicit conversion from byte to SqlByte
///
/// [To be supplied.]
///
public static implicit operator SqlByte(byte x) {
return new SqlByte(x);
}
// Explicit conversion from SqlByte to byte. Throw exception if x is Null.
///
/// [To be supplied.]
///
public static explicit operator byte(SqlByte x) {
return x.Value;
}
///
/// [To be supplied.]
///
public override String ToString() {
return IsNull ? SQLResource.NullString : m_value.ToString((IFormatProvider)null);
}
///
/// [To be supplied.]
///
public static SqlByte Parse(String s) {
if (s == SQLResource.NullString)
return SqlByte.Null;
else
return new SqlByte(Byte.Parse(s, (IFormatProvider)null));
}
// Unary operators
///
/// [To be supplied.]
///
public static SqlByte operator ~(SqlByte x) {
return x.IsNull ? Null : new SqlByte((byte)~x.m_value);
}
// Binary operators
// Arithmetic operators
///
/// [To be supplied.]
///
public static SqlByte operator +(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value + (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator -(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value - (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator *(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
int iResult = (int)x.m_value * (int)y.m_value;
if ((iResult & x_iBitNotByteMax) != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlByte((byte)iResult);
}
///
/// [To be supplied.]
///
public static SqlByte operator /(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
return new SqlByte((byte)(x.m_value / y.m_value));
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
///
/// [To be supplied.]
///
public static SqlByte operator %(SqlByte x, SqlByte y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
return new SqlByte((byte)(x.m_value % y.m_value));
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
// Bitwise operators
///
/// [To be supplied.]
///
public static SqlByte operator &(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value & y.m_value));
}
///
/// [To be supplied.]
///
public static SqlByte operator |(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value | y.m_value));
}
///
/// [To be supplied.]
///
public static SqlByte operator ^(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? Null : new SqlByte((byte)(x.m_value ^ y.m_value));
}
// Implicit conversions
// Implicit conversion from SqlBoolean to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlBoolean x) {
return x.IsNull ? Null : new SqlByte((byte)(x.ByteValue));
}
// Explicit conversions
// Explicit conversion from SqlMoney to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlMoney x) {
return x.IsNull ? Null : new SqlByte(checked((byte)x.ToInt32()));
}
// Explicit conversion from SqlInt16 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt16 x) {
if (x.IsNull)
return Null;
if (x.Value > (short)Byte.MaxValue || x.Value < (short)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlInt32 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt32 x) {
if (x.IsNull)
return Null;
if (x.Value > (int)Byte.MaxValue || x.Value < (int)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlInt64 to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlInt64 x) {
if (x.IsNull)
return Null;
if (x.Value > (long)Byte.MaxValue || x.Value < (long)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlSingle to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlSingle x) {
if (x.IsNull)
return Null;
if (x.Value > (float)Byte.MaxValue || x.Value < (float)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlDouble to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlDouble x) {
if (x.IsNull)
return Null;
if (x.Value > (double)Byte.MaxValue || x.Value < (double)Byte.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
return x.IsNull ? Null : new SqlByte((byte)(x.Value));
}
// Explicit conversion from SqlDecimal to SqlByte
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlDecimal x) {
return(SqlByte)(SqlInt32)x;
}
// Implicit conversion from SqlString to SqlByte
// Throws FormatException or OverflowException if necessary.
///
/// [To be supplied.]
///
public static explicit operator SqlByte(SqlString x) {
return x.IsNull ? Null : new SqlByte(Byte.Parse(x.Value, (IFormatProvider)null));
}
// Overloading comparison operators
///
/// [To be supplied.]
///
public static SqlBoolean operator==(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value == y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator!=(SqlByte x, SqlByte y) {
return ! (x == y);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value < y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value > y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<=(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value <= y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>=(SqlByte x, SqlByte y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value >= y.m_value);
}
//--------------------------------------------------
// Alternative methods for overloaded operators
//--------------------------------------------------
// Alternative method for operator ~
public static SqlByte OnesComplement(SqlByte x) {
return ~x;
}
// Alternative method for operator +
public static SqlByte Add(SqlByte x, SqlByte y) {
return x + y;
}
// Alternative method for operator -
public static SqlByte Subtract(SqlByte x, SqlByte y) {
return x - y;
}
// Alternative method for operator *
public static SqlByte Multiply(SqlByte x, SqlByte y) {
return x * y;
}
// Alternative method for operator /
public static SqlByte Divide(SqlByte x, SqlByte y) {
return x / y;
}
// Alternative method for operator %
public static SqlByte Mod(SqlByte x, SqlByte y) {
return x % y;
}
public static SqlByte Modulus(SqlByte x, SqlByte y) {
return x % y;
}
// Alternative method for operator &
public static SqlByte BitwiseAnd(SqlByte x, SqlByte y) {
return x & y;
}
// Alternative method for operator |
public static SqlByte BitwiseOr(SqlByte x, SqlByte y) {
return x | y;
}
// Alternative method for operator ^
public static SqlByte Xor(SqlByte x, SqlByte y) {
return x ^ y;
}
// Alternative method for operator ==
public static SqlBoolean Equals(SqlByte x, SqlByte y) {
return (x == y);
}
// Alternative method for operator !=
public static SqlBoolean NotEquals(SqlByte x, SqlByte y) {
return (x != y);
}
// Alternative method for operator <
public static SqlBoolean LessThan(SqlByte x, SqlByte y) {
return (x < y);
}
// Alternative method for operator >
public static SqlBoolean GreaterThan(SqlByte x, SqlByte y) {
return (x > y);
}
// Alternative method for operator <=
public static SqlBoolean LessThanOrEqual(SqlByte x, SqlByte y) {
return (x <= y);
}
// Alternative method for operator >=
public static SqlBoolean GreaterThanOrEqual(SqlByte x, SqlByte y) {
return (x >= y);
}
// Alternative method for conversions.
public SqlBoolean ToSqlBoolean() {
return (SqlBoolean)this;
}
public SqlDouble ToSqlDouble() {
return (SqlDouble)this;
}
public SqlInt16 ToSqlInt16() {
return (SqlInt16)this;
}
public SqlInt32 ToSqlInt32() {
return (SqlInt32)this;
}
public SqlInt64 ToSqlInt64() {
return (SqlInt64)this;
}
public SqlMoney ToSqlMoney() {
return (SqlMoney)this;
}
public SqlDecimal ToSqlDecimal() {
return (SqlDecimal)this;
}
public SqlSingle ToSqlSingle() {
return (SqlSingle)this;
}
public SqlString ToSqlString() {
return (SqlString)this;
}
// IComparable
// Compares this object to another object, returning an integer that
// indicates the relationship.
// Returns a value less than zero if this < object, zero if this = object,
// or a value greater than zero if this > object.
// null is considered to be less than any instance.
// If object is not of same type, this method throws an ArgumentException.
///
/// [To be supplied.]
///
public int CompareTo(Object value) {
if (value is SqlByte) {
SqlByte i = (SqlByte)value;
return CompareTo(i);
}
throw ADP.WrongType(value.GetType(), typeof(SqlByte));
}
public int CompareTo(SqlByte value) {
// If both Null, consider them equal.
// Otherwise, Null is less than anything.
if (IsNull)
return value.IsNull ? 0 : -1;
else if (value.IsNull)
return 1;
if (this < value) return -1;
if (this > value) return 1;
return 0;
}
// Compares this instance with a specified object
///
/// [To be supplied.]
///
public override bool Equals(Object value) {
if (!(value is SqlByte)) {
return false;
}
SqlByte i = (SqlByte)value;
if (i.IsNull || IsNull)
return (i.IsNull && IsNull);
else
return (this == i).Value;
}
// For hashing purpose
///
/// [To be supplied.]
///
public override int GetHashCode() {
return IsNull ? 0 : Value.GetHashCode();
}
///
/// [To be supplied.]
///
XmlSchema IXmlSerializable.GetSchema() { return null; }
///
/// [To be supplied.]
///
void IXmlSerializable.ReadXml(XmlReader reader) {
string isNull = reader.GetAttribute("nil", XmlSchema.InstanceNamespace);
if (isNull != null && XmlConvert.ToBoolean(isNull)) {
m_fNotNull = false;
}
else {
m_value = XmlConvert.ToByte(reader.ReadElementString());
m_fNotNull = true;
}
}
///
/// [To be supplied.]
///
void IXmlSerializable.WriteXml(XmlWriter writer) {
if (IsNull) {
writer.WriteAttributeString("xsi", "nil", XmlSchema.InstanceNamespace, "true");
}
else {
writer.WriteString(XmlConvert.ToString(m_value));
}
}
///
/// [To be supplied.]
///
public static XmlQualifiedName GetXsdType(XmlSchemaSet schemaSet) {
return new XmlQualifiedName("unsignedByte", XmlSchema.Namespace);
}
///
/// [To be supplied.]
///
public static readonly SqlByte Null = new SqlByte(true);
///
/// [To be supplied.]
///
public static readonly SqlByte Zero = new SqlByte(0);
///
/// [To be supplied.]
///
public static readonly SqlByte MinValue = new SqlByte(Byte.MinValue);
///
/// [To be supplied.]
///
public static readonly SqlByte MaxValue = new SqlByte(Byte.MaxValue);
} // SqlByte
} // namespace System
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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