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//
// System.Data.SqlTypes.SqlInt32
//
// Author:
// Rodrigo Moya (rodrigo@ximian.com)
// Daniel Morgan (danmorg@sc.rr.com)
// Tim Coleman (tim@timcoleman.com)
//
// (C) Ximian, Inc. 2002
// (C) Copyright 2002 Tim Coleman
//
using System;
using System.Globalization;
namespace System.Data.SqlTypes
{
/// <summary>
/// a 32-bit signed integer to be used in reading or writing
/// of data from a database
/// </summary>
public struct SqlInt32 : INullable, IComparable
{
#region Fields
int value;
public static readonly SqlInt32 MaxValue = new SqlInt32 (2147483647);
public static readonly SqlInt32 MinValue = new SqlInt32 (-2147483648);
public static readonly SqlInt32 Null;
public static readonly SqlInt32 Zero = new SqlInt32 (0);
#endregion
#region Constructors
public SqlInt32(int value)
{
this.value = value;
}
#endregion
#region Properties
public bool IsNull {
get { return (bool) (this == Null); }
}
public int Value {
get {
if (this.IsNull)
throw new SqlNullValueException ();
else
return value;
}
}
#endregion
#region Methods
public static SqlInt32 Add (SqlInt32 x, SqlInt32 y)
{
return (x + y);
}
public static SqlInt32 BitwiseAnd(SqlInt32 x, SqlInt32 y)
{
return (x & y);
}
public static SqlInt32 BitwiseOr(SqlInt32 x, SqlInt32 y)
{
return (x | y);
}
public int CompareTo(object value)
{
if (value == null)
return 1;
else if (!(value is SqlInt32))
throw new ArgumentException (Locale.GetText ("Value is not a System.Data.SqlTypes.SqlInt32"));
else if (((SqlInt32)value).IsNull)
return 1;
else
return this.value.CompareTo (((SqlInt32)value).Value);
}
public static SqlInt32 Divide(SqlInt32 x, SqlInt32 y)
{
return (x / y);
}
public override bool Equals(object value)
{
if (!(value is SqlInt32))
return false;
else
return (bool) (this == (SqlInt32)value);
}
public static SqlBoolean Equals(SqlInt32 x, SqlInt32 y)
{
return (x == y);
}
public override int GetHashCode()
{
return value;
}
public static SqlBoolean GreaterThan (SqlInt32 x, SqlInt32 y)
{
return (x > y);
}
public static SqlBoolean GreaterThanOrEqual (SqlInt32 x, SqlInt32 y)
{
return (x >= y);
}
public static SqlBoolean LessThan(SqlInt32 x, SqlInt32 y)
{
return (x < y);
}
public static SqlBoolean LessThanOrEqual(SqlInt32 x, SqlInt32 y)
{
return (x <= y);
}
public static SqlInt32 Mod(SqlInt32 x, SqlInt32 y)
{
return (x % y);
}
public static SqlInt32 Multiply(SqlInt32 x, SqlInt32 y)
{
return (x * y);
}
public static SqlBoolean NotEquals(SqlInt32 x, SqlInt32 y)
{
return (x != y);
}
public static SqlInt32 OnesComplement(SqlInt32 x)
{
return ~x;
}
public static SqlInt32 Parse(string s)
{
throw new NotImplementedException ();
}
public static SqlInt32 Subtract(SqlInt32 x, SqlInt32 y)
{
return (x - y);
}
public SqlBoolean ToSqlBoolean()
{
return ((SqlBoolean)this);
}
public SqlByte ToSqlByte()
{
return ((SqlByte)this);
}
public SqlDecimal ToSqlDecimal()
{
return ((SqlDecimal)this);
}
public SqlDouble ToSqlDouble()
{
return ((SqlDouble)this);
}
public SqlInt16 ToSqlInt16()
{
return ((SqlInt16)this);
}
public SqlInt64 ToSqlInt64()
{
return ((SqlInt64)this);
}
public SqlMoney ToSqlMoney()
{
return ((SqlMoney)this);
}
public SqlSingle ToSqlSingle()
{
return ((SqlSingle)this);
}
public SqlString ToSqlString ()
{
return ((SqlString)this);
}
public override string ToString()
{
if (this.IsNull)
return String.Empty;
else
return value.ToString ();
}
public static SqlInt32 Xor(SqlInt32 x, SqlInt32 y)
{
return (x ^ y);
}
#endregion
#region Operators
// Compute Addition
public static SqlInt32 operator + (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value + y.Value);
}
// Bitwise AND
public static SqlInt32 operator & (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value & y.Value);
}
// Bitwise OR
public static SqlInt32 operator | (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value | y.Value);
}
// Compute Division
public static SqlInt32 operator / (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value / y.Value);
}
// Compare Equality
public static SqlBoolean operator == (SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value == y.Value);
}
// Bitwise Exclusive-OR (XOR)
public static SqlInt32 operator ^ (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value ^ y.Value);
}
// > Compare
public static SqlBoolean operator >(SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value > y.Value);
}
// >= Compare
public static SqlBoolean operator >= (SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value >= y.Value);
}
// != Inequality Compare
public static SqlBoolean operator != (SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value != y.Value);
}
// < Compare
public static SqlBoolean operator < (SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value < y.Value);
}
// <= Compare
public static SqlBoolean operator <= (SqlInt32 x, SqlInt32 y)
{
if (x.IsNull || y.IsNull)
return SqlBoolean.Null;
else
return new SqlBoolean (x.Value <= y.Value);
}
// Compute Modulus
public static SqlInt32 operator % (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value % y.Value);
}
// Compute Multiplication
public static SqlInt32 operator * (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value * y.Value);
}
// Ones Complement
public static SqlInt32 operator ~ (SqlInt32 x)
{
return new SqlInt32 (~x.Value);
}
// Subtraction
public static SqlInt32 operator - (SqlInt32 x, SqlInt32 y)
{
return new SqlInt32 (x.Value - y.Value);
}
// Negates the Value
public static SqlInt32 operator - (SqlInt32 x)
{
return new SqlInt32 (-x.Value);
}
// Type Conversions
public static explicit operator SqlInt32 (SqlBoolean x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.ByteValue);
}
public static explicit operator SqlInt32 (SqlDecimal x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
public static explicit operator SqlInt32 (SqlDouble x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
public static explicit operator int (SqlInt32 x)
{
return x.Value;
}
public static explicit operator SqlInt32 (SqlInt64 x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
public static explicit operator SqlInt32(SqlMoney x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
public static explicit operator SqlInt32(SqlSingle x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
[MonoTODO]
public static explicit operator SqlInt32(SqlString x)
{
throw new NotImplementedException ();
}
public static implicit operator SqlInt32(int x)
{
return new SqlInt32 (x);
}
public static implicit operator SqlInt32(SqlByte x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
public static implicit operator SqlInt32(SqlInt16 x)
{
if (x.IsNull)
return Null;
else
return new SqlInt32 ((int)x.Value);
}
#endregion
}
}
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