Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Data / System / Data / SQLTypes / SQLInt64.cs / 1 / SQLInt64.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// junfang
// [....]
// [....]
//-----------------------------------------------------------------------------
//*************************************************************************
// @File: SqlInt64.cs
//
// Create by: JunFang
//
// Purpose: Implementation of SqlInt64 which is equivalent to
// data type "bigint" in SQL Server
//
// Notes:
//
// History:
//
// 10/28/99 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 a 64-bit signed integer to be stored in
/// or retrieved from a database.
///
///
[Serializable]
[StructLayout(LayoutKind.Sequential)]
[XmlSchemaProvider("GetXsdType")]
public struct SqlInt64 : INullable, IComparable, IXmlSerializable {
private bool m_fNotNull; // false if null
private long m_value;
private static readonly long x_lLowIntMask = 0xffffffff;
private static readonly long x_lHighIntMask = unchecked((long)0xffffffff00000000);
// constructor
// construct a Null
private SqlInt64(bool fNull) {
m_fNotNull = false;
m_value = 0;
}
///
/// [To be supplied.]
///
public SqlInt64(long value) {
m_value = value;
m_fNotNull = true;
}
// INullable
///
/// [To be supplied.]
///
public bool IsNull {
get { return !m_fNotNull;}
}
// property: Value
///
/// [To be supplied.]
///
public long Value {
get {
if (m_fNotNull)
return m_value;
else
throw new SqlNullValueException();
}
}
// Implicit conversion from long to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(long x) {
return new SqlInt64(x);
}
// Explicit conversion from SqlInt64 to long. Throw exception if x is Null.
///
/// [To be supplied.]
///
public static explicit operator long(SqlInt64 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 SqlInt64 Parse(String s) {
if (s == SQLResource.NullString)
return SqlInt64.Null;
else
return new SqlInt64(Int64.Parse(s, (IFormatProvider)null));
}
// Unary operators
///
/// [To be supplied.]
///
public static SqlInt64 operator -(SqlInt64 x) {
return x.IsNull ? Null : new SqlInt64(-x.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator ~(SqlInt64 x) {
return x.IsNull ? Null : new SqlInt64(~x.m_value);
}
// Binary operators
// Arithmetic operators
///
/// [To be supplied.]
///
public static SqlInt64 operator +(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
long lResult = x.m_value + y.m_value;
if (SameSignLong(x.m_value, y.m_value) && !SameSignLong(x.m_value, lResult))
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator -(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
long lResult = x.m_value - y.m_value;
if (!SameSignLong(x.m_value, y.m_value) && SameSignLong(y.m_value, lResult))
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator *(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
bool fNeg = false;
long lOp1 = x.m_value;
long lOp2 = y.m_value;
long lResult;
long lPartialResult = 0;
if (lOp1 < 0) {
fNeg = true;
lOp1 = - lOp1;
}
if (lOp2 < 0) {
fNeg = !fNeg;
lOp2 = - lOp2;
}
long lLow1 = lOp1 & x_lLowIntMask;
long lHigh1 = (lOp1 >> 32) & x_lLowIntMask;
long lLow2 = lOp2 & x_lLowIntMask;
long lHigh2 = (lOp2 >> 32) & x_lLowIntMask;
// if both of the high order dwords are non-zero then overflow results
if (lHigh1 != 0 && lHigh2 != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
lResult = lLow1 * lLow2;
if (lResult < 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (lHigh1 != 0) {
SQLDebug.Check(lHigh2 == 0);
lPartialResult = lHigh1 * lLow2;
if (lPartialResult < 0 || lPartialResult > Int64.MaxValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
else if (lHigh2 != 0) {
SQLDebug.Check(lHigh1 == 0);
lPartialResult = lLow1 * lHigh2;
if (lPartialResult < 0 || lPartialResult > Int64.MaxValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
lResult += lPartialResult << 32;
if (lResult < 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (fNeg)
lResult = - lResult;
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator /(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
if ((x.m_value == Int64.MinValue) && (y.m_value == -1))
throw new OverflowException(SQLResource.ArithOverflowMessage);
return new SqlInt64(x.m_value / y.m_value);
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator %(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
if ((x.m_value == Int64.MinValue) && (y.m_value == -1))
throw new OverflowException(SQLResource.ArithOverflowMessage);
return new SqlInt64(x.m_value % y.m_value);
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
// Bitwise operators
///
/// [To be supplied.]
///
public static SqlInt64 operator &(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value & y.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator |(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value | y.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator ^(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value ^ y.m_value);
}
// Implicit conversions
// Implicit conversion from SqlBoolean to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlBoolean x) {
return x.IsNull ? Null : new SqlInt64((long)x.ByteValue);
}
// Implicit conversion from SqlByte to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlByte x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Implicit conversion from SqlInt16 to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlInt16 x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Implicit conversion from SqlInt32 to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlInt32 x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Explicit conversions
// Explicit conversion from SqlSingle to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlSingle x) {
if (x.IsNull)
return Null;
float value = x.Value;
if (value > (float)Int64.MaxValue || value < (float)Int64.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64((long)value);
}
// Explicit conversion from SqlDouble to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlDouble x) {
if (x.IsNull)
return Null;
double value = x.Value;
if (value > (double)Int64.MaxValue || value < (double)Int64.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64((long)value);
}
// Explicit conversion from SqlMoney to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlMoney x) {
return x.IsNull ? Null : new SqlInt64(x.ToInt64());
}
// Explicit conversion from SqlDecimal to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlDecimal x) {
if (x.IsNull)
return SqlInt64.Null;
SqlDecimal ssnumTemp = x;
long llRetVal;
// Throw away decimal portion
ssnumTemp.AdjustScale (-ssnumTemp.m_bScale, false);
// More than 8 bytes of data will always overflow
if (ssnumTemp.m_bLen > 2)
throw new OverflowException(SQLResource.ConversionOverflowMessage);
// If 8 bytes of data, see if fits in LONGLONG
if (ssnumTemp.m_bLen == 2) {
ulong dwl = SqlDecimal.DWL(ssnumTemp.m_data1, ssnumTemp.m_data2);
if (dwl > SqlDecimal.x_llMax && (ssnumTemp.IsPositive || dwl != 1 + SqlDecimal.x_llMax))
throw new OverflowException(SQLResource.ConversionOverflowMessage);
llRetVal = (long) dwl;
}
// 4 bytes of data always fits in a LONGLONG
else
llRetVal = (long) ssnumTemp.m_data1;
//negate result if ssnumTemp negative
if (!ssnumTemp.IsPositive)
llRetVal = -llRetVal;
return new SqlInt64(llRetVal);
}
// Explicit conversion from SqlString to SqlInt
// Throws FormatException or OverflowException if necessary.
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlString x) {
return x.IsNull ? Null : new SqlInt64(Int64.Parse(x.Value, (IFormatProvider)null));
}
// Utility functions
private static bool SameSignLong(long x, long y) {
return((x ^ y) & unchecked((long)0x8000000000000000L)) == 0;
}
// Overloading comparison operators
///
/// [To be supplied.]
///
public static SqlBoolean operator==(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value == y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator!=(SqlInt64 x, SqlInt64 y) {
return ! (x == y);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value < y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value > y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<=(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value <= y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>=(SqlInt64 x, SqlInt64 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 SqlInt64 OnesComplement(SqlInt64 x) {
return ~x;
}
// Alternative method for operator +
public static SqlInt64 Add(SqlInt64 x, SqlInt64 y) {
return x + y;
}
// Alternative method for operator -
public static SqlInt64 Subtract(SqlInt64 x, SqlInt64 y) {
return x - y;
}
// Alternative method for operator *
public static SqlInt64 Multiply(SqlInt64 x, SqlInt64 y) {
return x * y;
}
// Alternative method for operator /
public static SqlInt64 Divide(SqlInt64 x, SqlInt64 y) {
return x / y;
}
// Alternative method for operator %
public static SqlInt64 Mod(SqlInt64 x, SqlInt64 y) {
return x % y;
}
public static SqlInt64 Modulus(SqlInt64 x, SqlInt64 y) {
return x % y;
}
// Alternative method for operator &
public static SqlInt64 BitwiseAnd(SqlInt64 x, SqlInt64 y) {
return x & y;
}
// Alternative method for operator |
public static SqlInt64 BitwiseOr(SqlInt64 x, SqlInt64 y) {
return x | y;
}
// Alternative method for operator ^
public static SqlInt64 Xor(SqlInt64 x, SqlInt64 y) {
return x ^ y;
}
// Alternative method for operator ==
public static SqlBoolean Equals(SqlInt64 x, SqlInt64 y) {
return (x == y);
}
// Alternative method for operator !=
public static SqlBoolean NotEquals(SqlInt64 x, SqlInt64 y) {
return (x != y);
}
// Alternative method for operator <
public static SqlBoolean LessThan(SqlInt64 x, SqlInt64 y) {
return (x < y);
}
// Alternative method for operator >
public static SqlBoolean GreaterThan(SqlInt64 x, SqlInt64 y) {
return (x > y);
}
// Alternative method for operator <=
public static SqlBoolean LessThanOrEqual(SqlInt64 x, SqlInt64 y) {
return (x <= y);
}
// Alternative method for operator >=
public static SqlBoolean GreaterThanOrEqual(SqlInt64 x, SqlInt64 y) {
return (x >= y);
}
// Alternative method for conversions.
public SqlBoolean ToSqlBoolean() {
return (SqlBoolean)this;
}
public SqlByte ToSqlByte() {
return (SqlByte)this;
}
public SqlDouble ToSqlDouble() {
return (SqlDouble)this;
}
public SqlInt16 ToSqlInt16() {
return (SqlInt16)this;
}
public SqlInt32 ToSqlInt32() {
return (SqlInt32)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 SqlInt64) {
SqlInt64 i = (SqlInt64)value;
return CompareTo(i);
}
throw ADP.WrongType(value.GetType(), typeof(SqlInt64));
}
public int CompareTo(SqlInt64 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 SqlInt64)) {
return false;
}
SqlInt64 i = (SqlInt64)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.ToInt64(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("long", XmlSchema.Namespace);
}
///
/// [To be supplied.]
///
public static readonly SqlInt64 Null = new SqlInt64(true);
///
/// [To be supplied.]
///
public static readonly SqlInt64 Zero = new SqlInt64(0);
///
/// [To be supplied.]
///
public static readonly SqlInt64 MinValue = new SqlInt64(Int64.MinValue);
///
/// [To be supplied.]
///
public static readonly SqlInt64 MaxValue = new SqlInt64(Int64.MaxValue);
} // SqlInt64
} // namespace System.Data.SqlTypes
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// junfang
// [....]
// [....]
//-----------------------------------------------------------------------------
//*************************************************************************
// @File: SqlInt64.cs
//
// Create by: JunFang
//
// Purpose: Implementation of SqlInt64 which is equivalent to
// data type "bigint" in SQL Server
//
// Notes:
//
// History:
//
// 10/28/99 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 a 64-bit signed integer to be stored in
/// or retrieved from a database.
///
///
[Serializable]
[StructLayout(LayoutKind.Sequential)]
[XmlSchemaProvider("GetXsdType")]
public struct SqlInt64 : INullable, IComparable, IXmlSerializable {
private bool m_fNotNull; // false if null
private long m_value;
private static readonly long x_lLowIntMask = 0xffffffff;
private static readonly long x_lHighIntMask = unchecked((long)0xffffffff00000000);
// constructor
// construct a Null
private SqlInt64(bool fNull) {
m_fNotNull = false;
m_value = 0;
}
///
/// [To be supplied.]
///
public SqlInt64(long value) {
m_value = value;
m_fNotNull = true;
}
// INullable
///
/// [To be supplied.]
///
public bool IsNull {
get { return !m_fNotNull;}
}
// property: Value
///
/// [To be supplied.]
///
public long Value {
get {
if (m_fNotNull)
return m_value;
else
throw new SqlNullValueException();
}
}
// Implicit conversion from long to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(long x) {
return new SqlInt64(x);
}
// Explicit conversion from SqlInt64 to long. Throw exception if x is Null.
///
/// [To be supplied.]
///
public static explicit operator long(SqlInt64 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 SqlInt64 Parse(String s) {
if (s == SQLResource.NullString)
return SqlInt64.Null;
else
return new SqlInt64(Int64.Parse(s, (IFormatProvider)null));
}
// Unary operators
///
/// [To be supplied.]
///
public static SqlInt64 operator -(SqlInt64 x) {
return x.IsNull ? Null : new SqlInt64(-x.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator ~(SqlInt64 x) {
return x.IsNull ? Null : new SqlInt64(~x.m_value);
}
// Binary operators
// Arithmetic operators
///
/// [To be supplied.]
///
public static SqlInt64 operator +(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
long lResult = x.m_value + y.m_value;
if (SameSignLong(x.m_value, y.m_value) && !SameSignLong(x.m_value, lResult))
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator -(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
long lResult = x.m_value - y.m_value;
if (!SameSignLong(x.m_value, y.m_value) && SameSignLong(y.m_value, lResult))
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator *(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
bool fNeg = false;
long lOp1 = x.m_value;
long lOp2 = y.m_value;
long lResult;
long lPartialResult = 0;
if (lOp1 < 0) {
fNeg = true;
lOp1 = - lOp1;
}
if (lOp2 < 0) {
fNeg = !fNeg;
lOp2 = - lOp2;
}
long lLow1 = lOp1 & x_lLowIntMask;
long lHigh1 = (lOp1 >> 32) & x_lLowIntMask;
long lLow2 = lOp2 & x_lLowIntMask;
long lHigh2 = (lOp2 >> 32) & x_lLowIntMask;
// if both of the high order dwords are non-zero then overflow results
if (lHigh1 != 0 && lHigh2 != 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
lResult = lLow1 * lLow2;
if (lResult < 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (lHigh1 != 0) {
SQLDebug.Check(lHigh2 == 0);
lPartialResult = lHigh1 * lLow2;
if (lPartialResult < 0 || lPartialResult > Int64.MaxValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
else if (lHigh2 != 0) {
SQLDebug.Check(lHigh1 == 0);
lPartialResult = lLow1 * lHigh2;
if (lPartialResult < 0 || lPartialResult > Int64.MaxValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
}
lResult += lPartialResult << 32;
if (lResult < 0)
throw new OverflowException(SQLResource.ArithOverflowMessage);
if (fNeg)
lResult = - lResult;
return new SqlInt64(lResult);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator /(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
if ((x.m_value == Int64.MinValue) && (y.m_value == -1))
throw new OverflowException(SQLResource.ArithOverflowMessage);
return new SqlInt64(x.m_value / y.m_value);
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator %(SqlInt64 x, SqlInt64 y) {
if (x.IsNull || y.IsNull)
return Null;
if (y.m_value != 0) {
if ((x.m_value == Int64.MinValue) && (y.m_value == -1))
throw new OverflowException(SQLResource.ArithOverflowMessage);
return new SqlInt64(x.m_value % y.m_value);
}
else
throw new DivideByZeroException(SQLResource.DivideByZeroMessage);
}
// Bitwise operators
///
/// [To be supplied.]
///
public static SqlInt64 operator &(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value & y.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator |(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value | y.m_value);
}
///
/// [To be supplied.]
///
public static SqlInt64 operator ^(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? Null : new SqlInt64(x.m_value ^ y.m_value);
}
// Implicit conversions
// Implicit conversion from SqlBoolean to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlBoolean x) {
return x.IsNull ? Null : new SqlInt64((long)x.ByteValue);
}
// Implicit conversion from SqlByte to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlByte x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Implicit conversion from SqlInt16 to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlInt16 x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Implicit conversion from SqlInt32 to SqlInt64
///
/// [To be supplied.]
///
public static implicit operator SqlInt64(SqlInt32 x) {
return x.IsNull ? Null : new SqlInt64((long)(x.Value));
}
// Explicit conversions
// Explicit conversion from SqlSingle to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlSingle x) {
if (x.IsNull)
return Null;
float value = x.Value;
if (value > (float)Int64.MaxValue || value < (float)Int64.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64((long)value);
}
// Explicit conversion from SqlDouble to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlDouble x) {
if (x.IsNull)
return Null;
double value = x.Value;
if (value > (double)Int64.MaxValue || value < (double)Int64.MinValue)
throw new OverflowException(SQLResource.ArithOverflowMessage);
else
return new SqlInt64((long)value);
}
// Explicit conversion from SqlMoney to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlMoney x) {
return x.IsNull ? Null : new SqlInt64(x.ToInt64());
}
// Explicit conversion from SqlDecimal to SqlInt64
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlDecimal x) {
if (x.IsNull)
return SqlInt64.Null;
SqlDecimal ssnumTemp = x;
long llRetVal;
// Throw away decimal portion
ssnumTemp.AdjustScale (-ssnumTemp.m_bScale, false);
// More than 8 bytes of data will always overflow
if (ssnumTemp.m_bLen > 2)
throw new OverflowException(SQLResource.ConversionOverflowMessage);
// If 8 bytes of data, see if fits in LONGLONG
if (ssnumTemp.m_bLen == 2) {
ulong dwl = SqlDecimal.DWL(ssnumTemp.m_data1, ssnumTemp.m_data2);
if (dwl > SqlDecimal.x_llMax && (ssnumTemp.IsPositive || dwl != 1 + SqlDecimal.x_llMax))
throw new OverflowException(SQLResource.ConversionOverflowMessage);
llRetVal = (long) dwl;
}
// 4 bytes of data always fits in a LONGLONG
else
llRetVal = (long) ssnumTemp.m_data1;
//negate result if ssnumTemp negative
if (!ssnumTemp.IsPositive)
llRetVal = -llRetVal;
return new SqlInt64(llRetVal);
}
// Explicit conversion from SqlString to SqlInt
// Throws FormatException or OverflowException if necessary.
///
/// [To be supplied.]
///
public static explicit operator SqlInt64(SqlString x) {
return x.IsNull ? Null : new SqlInt64(Int64.Parse(x.Value, (IFormatProvider)null));
}
// Utility functions
private static bool SameSignLong(long x, long y) {
return((x ^ y) & unchecked((long)0x8000000000000000L)) == 0;
}
// Overloading comparison operators
///
/// [To be supplied.]
///
public static SqlBoolean operator==(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value == y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator!=(SqlInt64 x, SqlInt64 y) {
return ! (x == y);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value < y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value > y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator<=(SqlInt64 x, SqlInt64 y) {
return(x.IsNull || y.IsNull) ? SqlBoolean.Null : new SqlBoolean(x.m_value <= y.m_value);
}
///
/// [To be supplied.]
///
public static SqlBoolean operator>=(SqlInt64 x, SqlInt64 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 SqlInt64 OnesComplement(SqlInt64 x) {
return ~x;
}
// Alternative method for operator +
public static SqlInt64 Add(SqlInt64 x, SqlInt64 y) {
return x + y;
}
// Alternative method for operator -
public static SqlInt64 Subtract(SqlInt64 x, SqlInt64 y) {
return x - y;
}
// Alternative method for operator *
public static SqlInt64 Multiply(SqlInt64 x, SqlInt64 y) {
return x * y;
}
// Alternative method for operator /
public static SqlInt64 Divide(SqlInt64 x, SqlInt64 y) {
return x / y;
}
// Alternative method for operator %
public static SqlInt64 Mod(SqlInt64 x, SqlInt64 y) {
return x % y;
}
public static SqlInt64 Modulus(SqlInt64 x, SqlInt64 y) {
return x % y;
}
// Alternative method for operator &
public static SqlInt64 BitwiseAnd(SqlInt64 x, SqlInt64 y) {
return x & y;
}
// Alternative method for operator |
public static SqlInt64 BitwiseOr(SqlInt64 x, SqlInt64 y) {
return x | y;
}
// Alternative method for operator ^
public static SqlInt64 Xor(SqlInt64 x, SqlInt64 y) {
return x ^ y;
}
// Alternative method for operator ==
public static SqlBoolean Equals(SqlInt64 x, SqlInt64 y) {
return (x == y);
}
// Alternative method for operator !=
public static SqlBoolean NotEquals(SqlInt64 x, SqlInt64 y) {
return (x != y);
}
// Alternative method for operator <
public static SqlBoolean LessThan(SqlInt64 x, SqlInt64 y) {
return (x < y);
}
// Alternative method for operator >
public static SqlBoolean GreaterThan(SqlInt64 x, SqlInt64 y) {
return (x > y);
}
// Alternative method for operator <=
public static SqlBoolean LessThanOrEqual(SqlInt64 x, SqlInt64 y) {
return (x <= y);
}
// Alternative method for operator >=
public static SqlBoolean GreaterThanOrEqual(SqlInt64 x, SqlInt64 y) {
return (x >= y);
}
// Alternative method for conversions.
public SqlBoolean ToSqlBoolean() {
return (SqlBoolean)this;
}
public SqlByte ToSqlByte() {
return (SqlByte)this;
}
public SqlDouble ToSqlDouble() {
return (SqlDouble)this;
}
public SqlInt16 ToSqlInt16() {
return (SqlInt16)this;
}
public SqlInt32 ToSqlInt32() {
return (SqlInt32)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 SqlInt64) {
SqlInt64 i = (SqlInt64)value;
return CompareTo(i);
}
throw ADP.WrongType(value.GetType(), typeof(SqlInt64));
}
public int CompareTo(SqlInt64 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 SqlInt64)) {
return false;
}
SqlInt64 i = (SqlInt64)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.ToInt64(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("long", XmlSchema.Namespace);
}
///
/// [To be supplied.]
///
public static readonly SqlInt64 Null = new SqlInt64(true);
///
/// [To be supplied.]
///
public static readonly SqlInt64 Zero = new SqlInt64(0);
///
/// [To be supplied.]
///
public static readonly SqlInt64 MinValue = new SqlInt64(Int64.MinValue);
///
/// [To be supplied.]
///
public static readonly SqlInt64 MaxValue = new SqlInt64(Int64.MaxValue);
} // SqlInt64
} // namespace System.Data.SqlTypes
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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