Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Convert.cs / 1305376 / Convert.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: Convert
**
**
** Purpose: Home for static conversion methods.
**
**
===========================================================*/
namespace System {
using System;
using System.Globalization;
using System.Threading;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Diagnostics.Contracts;
// Returns the type code of this object. An implementation of this method
// must not return TypeCode.Empty (which represents a null reference) or
// TypeCode.Object (which represents an object that doesn't implement the
// IConvertible interface). An implementation of this method should return
// TypeCode.DBNull if the value of this object is a database null. For
// example, a nullable integer type should return TypeCode.DBNull if the
// value of the object is the database null. Otherwise, an implementation
// of this method should return the TypeCode that best describes the
// internal representation of the object.
// The Value class provides conversion and querying methods for values. The
// Value class contains static members only, and it is not possible to create
// instances of the class.
//
// The statically typed conversion methods provided by the Value class are all
// of the form:
//
// public static XXX ToXXX(YYY value)
//
// where XXX is the target type and YYY is the source type. The matrix below
// shows the set of supported conversions. The set of conversions is symmetric
// such that for every ToXXX(YYY) there is also a ToYYY(XXX).
//
// From: To: Bol Chr SBy Byt I16 U16 I32 U32 I64 U64 Sgl Dbl Dec Dat Str
// ---------------------------------------------------------------------
// Boolean x x x x x x x x x x x x x
// Char x x x x x x x x x x
// SByte x x x x x x x x x x x x x x
// Byte x x x x x x x x x x x x x x
// Int16 x x x x x x x x x x x x x x
// UInt16 x x x x x x x x x x x x x x
// Int32 x x x x x x x x x x x x x x
// UInt32 x x x x x x x x x x x x x x
// Int64 x x x x x x x x x x x x x x
// UInt64 x x x x x x x x x x x x x x
// Single x x x x x x x x x x x x x
// Double x x x x x x x x x x x x x
// Decimal x x x x x x x x x x x x x
// DateTime x x
// String x x x x x x x x x x x x x x x
// ---------------------------------------------------------------------
//
// For dynamic conversions, the Value class provides a set of methods of the
// form:
//
// public static XXX ToXXX(object value)
//
// where XXX is the target type (Boolean, Char, SByte, Byte, Int16, UInt16,
// Int32, UInt32, Int64, UInt64, Single, Double, Decimal, DateTime,
// or String). The implementations of these methods all take the form:
//
// public static XXX toXXX(object value) {
// return value == null? XXX.Default: ((IConvertible)value).ToXXX();
// }
//
// The code first checks if the given value is a null reference (which is the
// same as Value.Empty), in which case it returns the default value for type
// XXX. Otherwise, a cast to IConvertible is performed, and the appropriate ToXXX()
// method is invoked on the object. An InvalidCastException is thrown if the
// cast to IConvertible fails, and that exception is simply allowed to propagate out
// of the conversion method.
// Constant representing the database null value. This value is used in
// database applications to indicate the absense of a known value. Note
// that Value.DBNull is NOT the same as a null object reference, which is
// represented by Value.Empty.
//
// The Equals() method of DBNull always returns false, even when the
// argument is itself DBNull.
//
// When passed Value.DBNull, the Value.GetTypeCode() method returns
// TypeCode.DBNull.
//
// When passed Value.DBNull, the Value.ToXXX() methods all throw an
// InvalidCastException.
public static class Convert {
//A typeof operation is fairly expensive (does a system call), so we'll cache these here
//statically. These are exactly lined up with the TypeCode, eg. ConvertType[TypeCode.Int16]
//will give you the type of an Int16.
internal static readonly RuntimeType[] ConvertTypes = {
(RuntimeType)typeof(System.Empty),
(RuntimeType)typeof(Object),
(RuntimeType)typeof(System.DBNull),
(RuntimeType)typeof(Boolean),
(RuntimeType)typeof(Char),
(RuntimeType)typeof(SByte),
(RuntimeType)typeof(Byte),
(RuntimeType)typeof(Int16),
(RuntimeType)typeof(UInt16),
(RuntimeType)typeof(Int32),
(RuntimeType)typeof(UInt32),
(RuntimeType)typeof(Int64),
(RuntimeType)typeof(UInt64),
(RuntimeType)typeof(Single),
(RuntimeType)typeof(Double),
(RuntimeType)typeof(Decimal),
(RuntimeType)typeof(DateTime),
(RuntimeType)typeof(Object), //TypeCode is discontinuous so we need a placeholder.
(RuntimeType)typeof(String)
};
// Need to special case Enum because typecode will be underlying type, e.g. Int32
private static readonly RuntimeType EnumType = (RuntimeType)typeof(Enum);
internal static readonly char[] base64Table = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
'P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d',
'e','f','g','h','i','j','k','l','m','n','o','p','q','r','s',
't','u','v','w','x','y','z','0','1','2','3','4','5','6','7',
'8','9','+','/','=' };
#if _DEBUG
private static bool TriggerAsserts = DoAsserts();
private static bool DoAsserts() {
Contract.Assert(ConvertTypes!=null, "[Convert.cctor]ConvertTypes!=null");
Contract.Assert(ConvertTypes.Length == ((int)TypeCode.String + 1), "[Convert.cctor]ConvertTypes.Length == ((int)TypeCode.String + 1)");
Contract.Assert(ConvertTypes[(int)TypeCode.Empty]==typeof(System.Empty),
"[Convert.cctor]ConvertTypes[(int)TypeCode.Empty]==typeof(System.Empty)");
Contract.Assert(ConvertTypes[(int)TypeCode.String]==typeof(String),
"[Convert.cctor]ConvertTypes[(int)TypeCode.String]==typeof(System.String)");
Contract.Assert(ConvertTypes[(int)TypeCode.Int32]==typeof(int),
"[Convert.cctor]ConvertTypes[(int)TypeCode.Int32]==typeof(int)");
return true;
}
#endif
public static readonly Object DBNull = System.DBNull.Value;
// Returns the type code for the given object. If the argument is null,
// the result is TypeCode.Empty. If the argument is not a value (i.e. if
// the object does not implement IConvertible), the result is TypeCode.Object.
// Otherwise, the result is the type code of the object, as determined by
// the object's implementation of IConvertible.
[Pure]
public static TypeCode GetTypeCode(object value) {
if (value == null) return TypeCode.Empty;
IConvertible temp = value as IConvertible;
if (temp != null)
{
return temp.GetTypeCode();
}
return TypeCode.Object;
}
// Returns true if the given object is a database null. This operation
// corresponds to "value.GetTypeCode() == TypeCode.DBNull".
[Pure]
public static bool IsDBNull(object value) {
if (value == System.DBNull.Value) return true;
IConvertible convertible = value as IConvertible;
return convertible != null? convertible.GetTypeCode() == TypeCode.DBNull: false;
}
// Converts the given object to the given type. In general, this method is
// equivalent to calling the Value.ToXXX(value) method for the given
// typeCode and boxing the result.
//
// The method first checks if the given object implements IConvertible. If not,
// the only permitted conversion is from a null to TypeCode.Empty, the
// result of which is null.
//
// If the object does implement IConvertible, a check is made to see if the
// object already has the given type code, in which case the object is
// simply returned. Otherwise, the appropriate ToXXX() is invoked on the
// object's implementation of IConvertible.
public static Object ChangeType(Object value, TypeCode typeCode) {
return ChangeType(value, typeCode, Thread.CurrentThread.CurrentCulture);
}
public static Object ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) {
if (value == null && (typeCode == TypeCode.Empty || typeCode == TypeCode.String || typeCode == TypeCode.Object)) {
return null;
}
IConvertible v = value as IConvertible;
if (v == null) {
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_IConvertible"));
}
// This line is invalid for things like Enums that return a TypeCode
// of Int32, but the object can't actually be cast to an Int32.
// if (v.GetTypeCode() == typeCode) return value;
switch (typeCode) {
case TypeCode.Boolean:
return v.ToBoolean(provider);
case TypeCode.Char:
return v.ToChar(provider);
case TypeCode.SByte:
return v.ToSByte(provider);
case TypeCode.Byte:
return v.ToByte(provider);
case TypeCode.Int16:
return v.ToInt16(provider);
case TypeCode.UInt16:
return v.ToUInt16(provider);
case TypeCode.Int32:
return v.ToInt32(provider);
case TypeCode.UInt32:
return v.ToUInt32(provider);
case TypeCode.Int64:
return v.ToInt64(provider);
case TypeCode.UInt64:
return v.ToUInt64(provider);
case TypeCode.Single:
return v.ToSingle(provider);
case TypeCode.Double:
return v.ToDouble(provider);
case TypeCode.Decimal:
return v.ToDecimal(provider);
case TypeCode.DateTime:
return v.ToDateTime(provider);
case TypeCode.String:
return v.ToString(provider);
case TypeCode.Object:
return value;
case TypeCode.DBNull:
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
case TypeCode.Empty:
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
default:
throw new ArgumentException(Environment.GetResourceString("Arg_UnknownTypeCode"));
}
}
internal static Object DefaultToType(IConvertible value, Type targetType, IFormatProvider provider) {
Contract.Requires(value != null, "[Convert.DefaultToType]value!=null");
if (targetType==null) {
throw new ArgumentNullException("targetType");
}
Contract.EndContractBlock();
RuntimeType rtTargetType = targetType as RuntimeType;
if (rtTargetType != null)
{
if (value.GetType() == targetType)
{
return value;
}
if (rtTargetType == ConvertTypes[(int)TypeCode.Boolean])
return value.ToBoolean(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Char])
return value.ToChar(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.SByte])
return value.ToSByte(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Byte])
return value.ToByte(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int16])
return value.ToInt16(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt16])
return value.ToUInt16(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int32])
return value.ToInt32(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt32])
return value.ToUInt32(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int64])
return value.ToInt64(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt64])
return value.ToUInt64(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Single])
return value.ToSingle(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Double])
return value.ToDouble(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Decimal])
return value.ToDecimal(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.DateTime])
return value.ToDateTime(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.String])
return value.ToString(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Object])
return (Object)value;
// Need to special case Enum because typecode will be underlying type, e.g. Int32
if (rtTargetType == EnumType)
return (Enum)value;
if (rtTargetType == ConvertTypes[(int)TypeCode.DBNull])
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
if (rtTargetType == ConvertTypes[(int)TypeCode.Empty])
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
}
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", value.GetType().FullName, targetType.FullName));
}
public static Object ChangeType(Object value, Type conversionType) {
return ChangeType(value, conversionType, Thread.CurrentThread.CurrentCulture);
}
public static Object ChangeType(Object value, Type conversionType, IFormatProvider provider) {
if( conversionType == null) {
throw new ArgumentNullException("conversionType");
}
Contract.EndContractBlock();
if( value == null ) {
if(conversionType.IsValueType) {
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_CannotCastNullToValueType"));
}
return null;
}
IConvertible ic = value as IConvertible;
if (ic == null) {
if ( value.GetType() == conversionType) {
return value;
}
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_IConvertible"));
}
RuntimeType rtConversionType = conversionType as RuntimeType;
if (rtConversionType==ConvertTypes[(int)TypeCode.Boolean])
return ic.ToBoolean(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Char])
return ic.ToChar(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.SByte])
return ic.ToSByte(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Byte])
return ic.ToByte(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int16])
return ic.ToInt16(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt16])
return ic.ToUInt16(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int32])
return ic.ToInt32(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt32])
return ic.ToUInt32(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int64])
return ic.ToInt64(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt64])
return ic.ToUInt64(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Single])
return ic.ToSingle(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Double])
return ic.ToDouble(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Decimal])
return ic.ToDecimal(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.DateTime])
return ic.ToDateTime(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.String])
return ic.ToString(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Object])
return (Object)value;
return ic.ToType(conversionType, provider);
}
// Conversions to Boolean
public static bool ToBoolean(Object value) {
return value == null? false: ((IConvertible)value).ToBoolean(null);
}
public static bool ToBoolean(Object value, IFormatProvider provider) {
return value == null? false: ((IConvertible)value).ToBoolean(provider);
}
public static bool ToBoolean(bool value) {
return value;
}
[CLSCompliant(false)]
public static bool ToBoolean(sbyte value) {
return value != 0;
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static bool ToBoolean(char value) {
return ((IConvertible)value).ToBoolean(null);
}
public static bool ToBoolean(byte value) {
return value != 0;
}
public static bool ToBoolean(short value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(ushort value) {
return value != 0;
}
public static bool ToBoolean(int value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(uint value) {
return value != 0;
}
public static bool ToBoolean(long value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(ulong value) {
return value != 0;
}
public static bool ToBoolean(String value) {
if (value == null)
return false;
return Boolean.Parse(value);
}
public static bool ToBoolean(String value, IFormatProvider provider) {
if (value == null)
return false;
return Boolean.Parse(value);
}
public static bool ToBoolean(float value)
{
return value != 0;
}
public static bool ToBoolean(double value)
{
return value != 0;
}
public static bool ToBoolean(decimal value)
{
return value != 0;
}
public static bool ToBoolean(DateTime value)
{
return ((IConvertible)value).ToBoolean(null);
}
// Disallowed conversions to Boolean
// public static bool ToBoolean(TimeSpan value)
// Conversions to Char
public static char ToChar(object value) {
return value == null? (char)0: ((IConvertible)value).ToChar(null);
}
public static char ToChar(object value, IFormatProvider provider) {
return value == null? (char)0: ((IConvertible)value).ToChar(provider);
}
public static char ToChar(bool value) {
return ((IConvertible)value).ToChar(null);
}
public static char ToChar(char value) {
return value;
}
[CLSCompliant(false)]
public static char ToChar(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
public static char ToChar(byte value) {
return (char)value;
}
public static char ToChar(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(ushort value) {
return (char)value;
}
public static char ToChar(int value) {
if (value < 0 || value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(uint value) {
if (value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
public static char ToChar(long value) {
if (value < 0 || value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(ulong value) {
if (value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
//
// @VariantSwitch
// Remove FormatExceptions;
//
public static char ToChar(String value) {
return ToChar(value, null);
}
public static char ToChar(String value, IFormatProvider provider) {
if (value == null)
throw new ArgumentNullException("value");
Contract.EndContractBlock();
if (value.Length != 1)
throw new FormatException(Environment.GetResourceString(ResId.Format_NeedSingleChar));
return value[0];
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(float value)
{
return ((IConvertible)value).ToChar(null);
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(double value)
{
return ((IConvertible)value).ToChar(null);
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(decimal value)
{
return ((IConvertible)value).ToChar(null);
}
public static char ToChar(DateTime value)
{
return ((IConvertible)value).ToChar(null);
}
// Disallowed conversions to Char
// public static char ToChar(TimeSpan value)
// Conversions to SByte
[CLSCompliant(false)]
public static sbyte ToSByte(object value) {
return value == null? (sbyte)0: ((IConvertible)value).ToSByte(null);
}
[CLSCompliant(false)]
public static sbyte ToSByte(object value, IFormatProvider provider) {
return value == null? (sbyte)0: ((IConvertible)value).ToSByte(provider);
}
[CLSCompliant(false)]
public static sbyte ToSByte(bool value) {
return value? (sbyte)Boolean.True: (sbyte)Boolean.False;
}
[CLSCompliant(false)]
public static sbyte ToSByte(sbyte value) {
return value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(char value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(byte value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(short value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(ushort value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(int value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(uint value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(long value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(ulong value) {
if (value > (ulong)SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(float value) {
return ToSByte((double)value);
}
[CLSCompliant(false)]
public static sbyte ToSByte(double value) {
return ToSByte(ToInt32(value));
}
[CLSCompliant(false)]
public static sbyte ToSByte(decimal value) {
return Decimal.ToSByte(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static sbyte ToSByte(String value) {
if (value == null)
return 0;
return SByte.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static sbyte ToSByte(String value, IFormatProvider provider) {
return SByte.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static sbyte ToSByte(DateTime value)
{
return ((IConvertible)value).ToSByte(null);
}
// Disallowed conversions to SByte
// public static sbyte ToSByte(TimeSpan value)
// Conversions to Byte
public static byte ToByte(object value) {
return value == null? (byte)0: ((IConvertible)value).ToByte(null);
}
public static byte ToByte(object value, IFormatProvider provider) {
return value == null? (byte)0: ((IConvertible)value).ToByte(provider);
}
public static byte ToByte(bool value) {
return value? (byte)Boolean.True: (byte)Boolean.False;
}
public static byte ToByte(byte value) {
return value;
}
public static byte ToByte(char value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(sbyte value) {
if (value < Byte.MinValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(short value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(ushort value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(int value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(uint value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(long value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(ulong value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(float value) {
return ToByte((double)value);
}
public static byte ToByte(double value) {
return ToByte(ToInt32(value));
}
public static byte ToByte(decimal value) {
return Decimal.ToByte(Decimal.Round(value, 0));
}
public static byte ToByte(String value) {
if (value == null)
return 0;
return Byte.Parse(value, CultureInfo.CurrentCulture);
}
public static byte ToByte(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Byte.Parse(value, NumberStyles.Integer, provider);
}
public static byte ToByte(DateTime value)
{
return ((IConvertible)value).ToByte(null);
}
// Disallowed conversions to Byte
// public static byte ToByte(TimeSpan value)
// Conversions to Int16
public static short ToInt16(object value) {
return value == null? (short)0: ((IConvertible)value).ToInt16(null);
}
public static short ToInt16(object value, IFormatProvider provider) {
return value == null? (short)0: ((IConvertible)value).ToInt16(provider);
}
public static short ToInt16(bool value) {
return value? (short)Boolean.True: (short)Boolean.False;
}
public static short ToInt16(char value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(sbyte value) {
return value;
}
public static short ToInt16(byte value) {
return value;
}
[CLSCompliant(false)]
public static short ToInt16(ushort value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(int value) {
if (value < Int16.MinValue || value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(uint value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(short value) {
return value;
}
public static short ToInt16(long value) {
if (value < Int16.MinValue || value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(ulong value) {
if (value > (ulong)Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(float value) {
return ToInt16((double)value);
}
public static short ToInt16(double value) {
return ToInt16(ToInt32(value));
}
public static short ToInt16(decimal value) {
return Decimal.ToInt16(Decimal.Round(value, 0));
}
public static short ToInt16(String value) {
if (value == null)
return 0;
return Int16.Parse(value, CultureInfo.CurrentCulture);
}
public static short ToInt16(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int16.Parse(value, NumberStyles.Integer, provider);
}
public static short ToInt16(DateTime value)
{
return ((IConvertible)value).ToInt16(null);
}
// Disallowed conversions to Int16
// public static short ToInt16(TimeSpan value)
// Conversions to UInt16
[CLSCompliant(false)]
public static ushort ToUInt16(object value) {
return value == null? (ushort)0: ((IConvertible)value).ToUInt16(null);
}
[CLSCompliant(false)]
public static ushort ToUInt16(object value, IFormatProvider provider) {
return value == null? (ushort)0: ((IConvertible)value).ToUInt16(provider);
}
[CLSCompliant(false)]
public static ushort ToUInt16(bool value) {
return value? (ushort)Boolean.True: (ushort)Boolean.False;
}
[CLSCompliant(false)]
public static ushort ToUInt16(char value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(byte value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(int value) {
if (value < 0 || value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(ushort value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(uint value) {
if (value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(long value) {
if (value < 0 || value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(ulong value) {
if (value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(float value) {
return ToUInt16((double)value);
}
[CLSCompliant(false)]
public static ushort ToUInt16(double value) {
return ToUInt16(ToInt32(value));
}
[CLSCompliant(false)]
public static ushort ToUInt16(decimal value) {
return Decimal.ToUInt16(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static ushort ToUInt16(String value) {
if (value == null)
return 0;
return UInt16.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static ushort ToUInt16(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt16.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static ushort ToUInt16(DateTime value)
{
return ((IConvertible)value).ToUInt16(null);
}
// Disallowed conversions to UInt16
// public static ushort ToUInt16(TimeSpan value)
// Conversions to Int32
public static int ToInt32(object value) {
return value == null? 0: ((IConvertible)value).ToInt32(null);
}
public static int ToInt32(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToInt32(provider);
}
public static int ToInt32(bool value) {
return value? Boolean.True: Boolean.False;
}
public static int ToInt32(char value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(sbyte value) {
return value;
}
public static int ToInt32(byte value) {
return value;
}
public static int ToInt32(short value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(ushort value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(uint value) {
if (value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
public static int ToInt32(int value) {
return value;
}
public static int ToInt32(long value) {
if (value < Int32.MinValue || value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
[CLSCompliant(false)]
public static int ToInt32(ulong value) {
if (value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
public static int ToInt32(float value) {
return ToInt32((double)value);
}
public static int ToInt32(double value) {
if (value >= 0) {
if (value < 2147483647.5) {
int result = (int)value;
double dif = value - result;
if (dif > 0.5 || dif == 0.5 && (result & 1) != 0) result++;
return result;
}
}
else {
if (value >= -2147483648.5) {
int result = (int)value;
double dif = value - result;
if (dif < -0.5 || dif == -0.5 && (result & 1) != 0) result--;
return result;
}
}
throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
}
[System.Security.SecuritySafeCritical] // auto-generated
public static int ToInt32(decimal value) {
return Decimal.FCallToInt32(value);
}
public static int ToInt32(String value) {
if (value == null)
return 0;
return Int32.Parse(value, CultureInfo.CurrentCulture);
}
public static int ToInt32(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int32.Parse(value, NumberStyles.Integer, provider);
}
public static int ToInt32(DateTime value)
{
return ((IConvertible)value).ToInt32(null);
}
// Disallowed conversions to Int32
// public static int ToInt32(TimeSpan value)
// Conversions to UInt32
[CLSCompliant(false)]
public static uint ToUInt32(object value) {
return value == null? 0: ((IConvertible)value).ToUInt32(null);
}
[CLSCompliant(false)]
public static uint ToUInt32(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToUInt32(provider);
}
[CLSCompliant(false)]
public static uint ToUInt32(bool value) {
return value? (uint)Boolean.True: (uint)Boolean.False;
}
[CLSCompliant(false)]
public static uint ToUInt32(char value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(byte value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(ushort value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(int value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(uint value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(long value) {
if (value < 0 || value > UInt32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(ulong value) {
if (value > UInt32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(float value) {
return ToUInt32((double)value);
}
[CLSCompliant(false)]
public static uint ToUInt32(double value) {
if (value >= -0.5 && value < 4294967295.5) {
uint result = (uint)value;
double dif = value - result;
if (dif > 0.5 || dif == 0.5 && (result & 1) != 0) result++;
return result;
}
throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
}
[CLSCompliant(false)]
public static uint ToUInt32(decimal value) {
return Decimal.ToUInt32(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static uint ToUInt32(String value) {
if (value == null)
return 0;
return UInt32.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static uint ToUInt32(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt32.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static uint ToUInt32(DateTime value)
{
return ((IConvertible)value).ToUInt32(null);
}
// Disallowed conversions to UInt32
// public static uint ToUInt32(TimeSpan value)
// Conversions to Int64
public static long ToInt64(object value) {
return value == null? 0: ((IConvertible)value).ToInt64(null);
}
public static long ToInt64(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToInt64(provider);
}
public static long ToInt64(bool value) {
return value? Boolean.True: Boolean.False;
}
public static long ToInt64(char value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(sbyte value) {
return value;
}
public static long ToInt64(byte value) {
return value;
}
public static long ToInt64(short value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(ushort value) {
return value;
}
public static long ToInt64(int value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(uint value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(ulong value) {
if (value > Int64.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int64"));
Contract.EndContractBlock();
return (long)value;
}
public static long ToInt64(long value) {
return value;
}
public static long ToInt64(float value) {
return ToInt64((double)value);
}
[System.Security.SecuritySafeCritical] // auto-generated
public static long ToInt64(double value) {
return checked((long)Math.Round(value));
}
public static long ToInt64(decimal value) {
return Decimal.ToInt64(Decimal.Round(value, 0));
}
public static long ToInt64(string value) {
if (value == null)
return 0;
return Int64.Parse(value, CultureInfo.CurrentCulture);
}
public static long ToInt64(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int64.Parse(value, NumberStyles.Integer, provider);
}
public static long ToInt64(DateTime value)
{
return ((IConvertible)value).ToInt64(null);
}
// Disallowed conversions to Int64
// public static long ToInt64(TimeSpan value)
// Conversions to UInt64
[CLSCompliant(false)]
public static ulong ToUInt64(object value) {
return value == null? 0: ((IConvertible)value).ToUInt64(null);
}
[CLSCompliant(false)]
public static ulong ToUInt64(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToUInt64(provider);
}
[CLSCompliant(false)]
public static ulong ToUInt64(bool value) {
return value? (ulong)Boolean.True: (ulong)Boolean.False;
}
[CLSCompliant(false)]
public static ulong ToUInt64(char value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(byte value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(ushort value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(int value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(uint value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(long value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(UInt64 value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(float value) {
return ToUInt64((double)value);
}
[System.Security.SecuritySafeCritical] // auto-generated
[CLSCompliant(false)]
public static ulong ToUInt64(double value) {
return checked((ulong)Math.Round(value));
}
[CLSCompliant(false)]
public static ulong ToUInt64(decimal value) {
return Decimal.ToUInt64(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static ulong ToUInt64(String value) {
if (value == null)
return 0;
return UInt64.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static ulong ToUInt64(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt64.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static ulong ToUInt64(DateTime value)
{
return ((IConvertible)value).ToUInt64(null);
}
// Disallowed conversions to UInt64
// public static ulong ToUInt64(TimeSpan value)
// Conversions to Single
public static float ToSingle(object value) {
return value == null? 0: ((IConvertible)value).ToSingle(null);
}
public static float ToSingle(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToSingle(provider);
}
[CLSCompliant(false)]
public static float ToSingle(sbyte value) {
return value;
}
public static float ToSingle(byte value) {
return value;
}
public static float ToSingle(char value) {
return ((IConvertible)value).ToSingle(null);
}
public static float ToSingle(short value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(ushort value) {
return value;
}
public static float ToSingle(int value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(uint value) {
return value;
}
public static float ToSingle(long value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(ulong value) {
return value;
}
public static float ToSingle(float value) {
return value;
}
public static float ToSingle(double value) {
return (float)value;
}
public static float ToSingle(decimal value) {
return (float)value;
}
public static float ToSingle(String value) {
if (value == null)
return 0;
return Single.Parse(value, CultureInfo.CurrentCulture);
}
public static float ToSingle(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Single.Parse(value, NumberStyles.Float | NumberStyles.AllowThousands, provider);
}
public static float ToSingle(bool value)
{
return value? Boolean.True: Boolean.False;
}
public static float ToSingle(DateTime value)
{
return ((IConvertible)value).ToSingle(null);
}
// Disallowed conversions to Single
// public static float ToSingle(TimeSpan value)
// Conversions to Double
public static double ToDouble(object value) {
return value == null? 0: ((IConvertible)value).ToDouble(null);
}
public static double ToDouble(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToDouble(provider);
}
[CLSCompliant(false)]
public static double ToDouble(sbyte value) {
return value;
}
public static double ToDouble(byte value) {
return value;
}
public static double ToDouble(short value) {
return value;
}
public static double ToDouble(char value) {
return ((IConvertible)value).ToDouble(null);
}
[CLSCompliant(false)]
public static double ToDouble(ushort value) {
return value;
}
public static double ToDouble(int value) {
return value;
}
[CLSCompliant(false)]
public static double ToDouble(uint value) {
return value;
}
public static double ToDouble(long value) {
return value;
}
[CLSCompliant(false)]
public static double ToDouble(ulong value) {
return value;
}
public static double ToDouble(float value) {
return value;
}
public static double ToDouble(double value) {
return value;
}
public static double ToDouble(decimal value) {
return (double)value;
}
public static double ToDouble(String value) {
if (value == null)
return 0;
return Double.Parse(value, CultureInfo.CurrentCulture);
}
public static double ToDouble(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Double.Parse(value, NumberStyles.Float | NumberStyles.AllowThousands, provider);
}
public static double ToDouble(bool value) {
return value? Boolean.True: Boolean.False;
}
public static double ToDouble(DateTime value)
{
return ((IConvertible)value).ToDouble(null);
}
// Disallowed conversions to Double
// public static double ToDouble(TimeSpan value)
// Conversions to Decimal
public static decimal ToDecimal(object value) {
return value == null? 0: ((IConvertible)value).ToDecimal(null);
}
public static decimal ToDecimal(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToDecimal(provider);
}
[CLSCompliant(false)]
public static decimal ToDecimal(sbyte value) {
return value;
}
public static decimal ToDecimal(byte value) {
return value;
}
public static decimal ToDecimal(char value) {
return ((IConvertible)value).ToDecimal(null);
}
public static decimal ToDecimal(short value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(ushort value) {
return value;
}
public static decimal ToDecimal(int value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(uint value) {
return value;
}
public static decimal ToDecimal(long value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(ulong value) {
return value;
}
public static decimal ToDecimal(float value) {
return (decimal)value;
}
public static decimal ToDecimal(double value) {
return (decimal)value;
}
public static decimal ToDecimal(String value) {
if (value == null)
return 0m;
return Decimal.Parse(value, CultureInfo.CurrentCulture);
}
public static Decimal ToDecimal(String value, IFormatProvider provider) {
if (value == null)
return 0m;
return Decimal.Parse(value, NumberStyles.Number, provider);
}
public static decimal ToDecimal(decimal value) {
return value;
}
public static decimal ToDecimal(bool value) {
return value? Boolean.True: Boolean.False;
}
public static decimal ToDecimal(DateTime value)
{
return ((IConvertible)value).ToDecimal(null);
}
// Disallowed conversions to Decimal
// public static decimal ToDecimal(TimeSpan value)
// Conversions to DateTime
public static DateTime ToDateTime(DateTime value) {
return value;
}
public static DateTime ToDateTime(object value) {
return value == null? DateTime.MinValue: ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(object value, IFormatProvider provider) {
return value == null? DateTime.MinValue: ((IConvertible)value).ToDateTime(provider);
}
public static DateTime ToDateTime(String value) {
if (value == null)
return new DateTime(0);
return DateTime.Parse(value, CultureInfo.CurrentCulture);
}
public static DateTime ToDateTime(String value, IFormatProvider provider) {
if (value == null)
return new DateTime(0);
return DateTime.Parse(value, provider);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(sbyte value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(byte value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(short value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(ushort value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(int value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(uint value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(long value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(ulong value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(bool value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(char value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(float value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(double value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(decimal value) {
return ((IConvertible)value).ToDateTime(null);
}
// Disallowed conversions to DateTime
// public static DateTime ToDateTime(TimeSpan value)
// Conversions to String
public static string ToString(Object value) {
return ToString(value,null);
}
public static string ToString(Object value, IFormatProvider provider) {
IConvertible ic = value as IConvertible;
if (ic != null)
return ic.ToString(provider);
IFormattable formattable = value as IFormattable;
if (formattable != null)
return formattable.ToString(null, provider);
return value == null? String.Empty: value.ToString();
}
public static string ToString(bool value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString();
}
public static string ToString(bool value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(char value) {
Contract.Ensures(Contract.Result() != null);
return Char.ToString(value);
}
public static string ToString(char value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(sbyte value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(sbyte value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(byte value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(byte value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(short value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(short value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(ushort value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(ushort value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(int value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(int value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(uint value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(uint value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(long value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(long value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(ulong value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(ulong value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(float value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(float value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(double value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(double value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(decimal value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(Decimal value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(DateTime value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString();
}
public static string ToString(DateTime value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static String ToString(String value) {
Contract.Ensures(Contract.Result() == value); // We were always skipping the null check here.
return value;
}
public static String ToString(String value,IFormatProvider provider) {
Contract.Ensures(Contract.Result() == value); // We were always skipping the null check here.
return value; // avoid the null check
}
//
// Conversions which understand Base XXX numbers.
//
// Parses value in base base. base can only
// be 2, 8, 10, or 16. If base is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static byte ToByte (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsUnsigned);
if (r < Byte.MinValue || r > Byte.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
return (byte) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static sbyte ToSByte (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsI1);
if (fromBase != 10 && r <= Byte.MaxValue)
return (sbyte)r;
if (r < SByte.MinValue || r > SByte.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
return (sbyte) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static short ToInt16 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsI2);
if (fromBase != 10 && r <= UInt16.MaxValue)
return (short)r;
if (r < Int16.MinValue || r > Int16.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
return (short) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static ushort ToUInt16 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsUnsigned);
if (r < UInt16.MinValue || r > UInt16.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
return (ushort) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static int ToInt32 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static uint ToUInt32 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return (uint) ParseNumbers.StringToInt(value,fromBase, ParseNumbers.TreatAsUnsigned | ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static long ToInt64 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.StringToLong(value,fromBase,ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static ulong ToUInt64 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return (ulong) ParseNumbers.StringToLong(value,fromBase, ParseNumbers.TreatAsUnsigned | ParseNumbers.IsTight);
}
// Convert the byte value to a string in base fromBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (byte value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString((int)value, toBase, -1, ' ', ParseNumbers.PrintAsI1);
}
// Convert the Int16 value to a string in base fromBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (short value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString((int)value, toBase, -1, ' ', ParseNumbers.PrintAsI2);
}
// Convert the Int32 value to a string in base toBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (int value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString(value, toBase, -1, ' ', 0);
}
// Convert the Int64 value to a string in base toBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (long value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.LongToString(value, toBase, -1, ' ', 0);
}
public static String ToBase64String(byte[] inArray) {
if (inArray==null) {
throw new ArgumentNullException("inArray");
}
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
return ToBase64String(inArray, 0, inArray.Length, Base64FormattingOptions.None);
}
[System.Runtime.InteropServices.ComVisible(false)]
public static String ToBase64String(byte[] inArray, Base64FormattingOptions options) {
if (inArray==null) {
throw new ArgumentNullException("inArray");
}
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
return ToBase64String(inArray, 0, inArray.Length, options);
}
public static String ToBase64String(byte[] inArray, int offset, int length) {
return ToBase64String(inArray, offset, length, Base64FormattingOptions.None);
}
[System.Security.SecuritySafeCritical] // auto-generated
[System.Runtime.InteropServices.ComVisible(false)]
public static unsafe String ToBase64String(byte[] inArray, int offset, int length, Base64FormattingOptions options) {
//Do data verfication
if (inArray==null)
throw new ArgumentNullException("inArray");
if (length<0)
throw new ArgumentOutOfRangeException("length", Environment.GetResourceString("ArgumentOutOfRange_Index"));
if (offset<0)
throw new ArgumentOutOfRangeException("offset", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if (options < Base64FormattingOptions.None || options > Base64FormattingOptions.InsertLineBreaks)
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", (int)options));
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
int inArrayLength;
int stringLength;
inArrayLength = inArray.Length;
if (offset > (inArrayLength - length))
throw new ArgumentOutOfRangeException("offset", Environment.GetResourceString("ArgumentOutOfRange_OffsetLength"));
if (inArrayLength == 0)
return String.Empty;
bool insertLineBreaks = (options == Base64FormattingOptions.InsertLineBreaks);
//Create the new string. This is the maximally required length.
stringLength = CalculateOutputLength(length, insertLineBreaks);
string returnString = string.FastAllocateString(stringLength);
fixed (char* outChars = returnString){
fixed (byte* inData = inArray) {
int j = ConvertToBase64Array(outChars,inData,offset,length, insertLineBreaks);
BCLDebug.Assert(returnString.Length == j, "returnString.Length == j");
return returnString;
}
}
}
public static int ToBase64CharArray(byte[] inArray, int offsetIn, int length, char[] outArray, int offsetOut) {
Contract.Ensures(Contract.Result() >= 0);
Contract.Ensures(Contract.Result() <= outArray.Length);
Contract.EndContractBlock();
return ToBase64CharArray(inArray, offsetIn, length, outArray, offsetOut, Base64FormattingOptions.None);
}
[System.Security.SecuritySafeCritical] // auto-generated
[System.Runtime.InteropServices.ComVisible(false)]
public static unsafe int ToBase64CharArray(byte[] inArray, int offsetIn, int length, char[] outArray, int offsetOut, Base64FormattingOptions options) {
//Do data verfication
if (inArray==null)
throw new ArgumentNullException("inArray");
if (outArray==null)
throw new ArgumentNullException("outArray");
if (length<0)
throw new ArgumentOutOfRangeException("length", Environment.GetResourceString("ArgumentOutOfRange_Index"));
if (offsetIn<0)
throw new ArgumentOutOfRangeException("offsetIn", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if (offsetOut<0)
throw new ArgumentOutOfRangeException("offsetOut", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if( options < Base64FormattingOptions.None || options > Base64FormattingOptions.InsertLineBreaks) {
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", (int)options));
}
Contract.Ensures(Contract.Result() >= 0);
Contract.Ensures(Contract.Result() <= outArray.Length);
Contract.EndContractBlock();
int retVal;
int inArrayLength;
int outArrayLength;
int numElementsToCopy;
inArrayLength = inArray.Length;
if (offsetIn > (int)(inArrayLength - length))
throw new ArgumentOutOfRangeException("offsetIn", Environment.GetResourceString("ArgumentOutOfRange_OffsetLength"));
if (inArrayLength == 0)
return 0;
bool insertLineBreaks = (options == Base64FormattingOptions.InsertLineBreaks);
//This is the maximally required length that must be available in the char array
outArrayLength = outArray.Length;
// Length of the char buffer required
numElementsToCopy = CalculateOutputLength(length, insertLineBreaks);
if (offsetOut > (int)(outArrayLength - numElementsToCopy))
throw new ArgumentOutOfRangeException("offsetOut", Environment.GetResourceString("ArgumentOutOfRange_OffsetOut"));
fixed (char* outChars = &outArray[offsetOut]) {
fixed (byte* inData = inArray) {
retVal = ConvertToBase64Array(outChars,inData,offsetIn,length, insertLineBreaks);
}
}
return retVal;
}
[System.Security.SecurityCritical] // auto-generated
private static unsafe int ConvertToBase64Array(char* outChars, byte* inData, int offset, int length, bool insertLineBreaks) {
int lengthmod3 = length%3;
int calcLength = offset + (length - lengthmod3);
int j=0;
int charcount = 0;
//Convert three bytes at a time to base64 notation. This will consume 4 chars.
int i;
// get a pointer to the base64Table to avoid unnecessary range checking
fixed(char* base64 = base64Table) {
for (i=offset; i>2];
outChars[j+1] = base64[((inData[i]&0x03)<<4) | ((inData[i+1]&0xf0)>>4)];
outChars[j+2] = base64[((inData[i+1]&0x0f)<<2) | ((inData[i+2]&0xc0)>>6)];
outChars[j+3] = base64[(inData[i+2]&0x3f)];
j += 4;
}
//Where we left off before
i = calcLength;
if (insertLineBreaks && (lengthmod3 !=0) && (charcount == 76)) {
outChars[j++] = '\r';
outChars[j++] = '\n';
}
switch(lengthmod3)
{
case 2: //One character padding needed
outChars[j] = base64[(inData[i]&0xfc)>>2];
outChars[j+1] = base64[((inData[i]&0x03)<<4)|((inData[i+1]&0xf0)>>4)];
outChars[j+2] = base64[(inData[i+1]&0x0f)<<2];
outChars[j+3] = base64[64]; //Pad
j+=4;
break;
case 1: // Two character padding needed
outChars[j] = base64[(inData[i]&0xfc)>>2];
outChars[j+1] = base64[(inData[i]&0x03)<<4];
outChars[j+2] = base64[64]; //Pad
outChars[j+3] = base64[64]; //Pad
j+=4;
break;
}
}
return j;
}
private static int CalculateOutputLength(int inputLength, bool insertLineBreaks) {
int outlen = (int)( inputLength / 3 * 4); // the base length - we want integer division here.
outlen += ((inputLength % 3) != 0) ? 4 : 0; // at most 4 more chars for the remainder
if (outlen ==0 )
return outlen;
if (insertLineBreaks) {
int newLines = outlen / 76;
if( (outlen % 76) == 0) {
--newLines;
}
outlen += newLines * 2; // the number of line break chars we'll add, "\r\n"
}
return outlen;
}
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public static extern byte[] FromBase64String(String s);
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public static extern byte[] FromBase64CharArray(char[] inArray, int offset, int length);
}
[Flags]
public enum Base64FormattingOptions {
None = 0,
InsertLineBreaks = 1
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: Convert
**
**
** Purpose: Home for static conversion methods.
**
**
===========================================================*/
namespace System {
using System;
using System.Globalization;
using System.Threading;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Diagnostics.Contracts;
// Returns the type code of this object. An implementation of this method
// must not return TypeCode.Empty (which represents a null reference) or
// TypeCode.Object (which represents an object that doesn't implement the
// IConvertible interface). An implementation of this method should return
// TypeCode.DBNull if the value of this object is a database null. For
// example, a nullable integer type should return TypeCode.DBNull if the
// value of the object is the database null. Otherwise, an implementation
// of this method should return the TypeCode that best describes the
// internal representation of the object.
// The Value class provides conversion and querying methods for values. The
// Value class contains static members only, and it is not possible to create
// instances of the class.
//
// The statically typed conversion methods provided by the Value class are all
// of the form:
//
// public static XXX ToXXX(YYY value)
//
// where XXX is the target type and YYY is the source type. The matrix below
// shows the set of supported conversions. The set of conversions is symmetric
// such that for every ToXXX(YYY) there is also a ToYYY(XXX).
//
// From: To: Bol Chr SBy Byt I16 U16 I32 U32 I64 U64 Sgl Dbl Dec Dat Str
// ---------------------------------------------------------------------
// Boolean x x x x x x x x x x x x x
// Char x x x x x x x x x x
// SByte x x x x x x x x x x x x x x
// Byte x x x x x x x x x x x x x x
// Int16 x x x x x x x x x x x x x x
// UInt16 x x x x x x x x x x x x x x
// Int32 x x x x x x x x x x x x x x
// UInt32 x x x x x x x x x x x x x x
// Int64 x x x x x x x x x x x x x x
// UInt64 x x x x x x x x x x x x x x
// Single x x x x x x x x x x x x x
// Double x x x x x x x x x x x x x
// Decimal x x x x x x x x x x x x x
// DateTime x x
// String x x x x x x x x x x x x x x x
// ---------------------------------------------------------------------
//
// For dynamic conversions, the Value class provides a set of methods of the
// form:
//
// public static XXX ToXXX(object value)
//
// where XXX is the target type (Boolean, Char, SByte, Byte, Int16, UInt16,
// Int32, UInt32, Int64, UInt64, Single, Double, Decimal, DateTime,
// or String). The implementations of these methods all take the form:
//
// public static XXX toXXX(object value) {
// return value == null? XXX.Default: ((IConvertible)value).ToXXX();
// }
//
// The code first checks if the given value is a null reference (which is the
// same as Value.Empty), in which case it returns the default value for type
// XXX. Otherwise, a cast to IConvertible is performed, and the appropriate ToXXX()
// method is invoked on the object. An InvalidCastException is thrown if the
// cast to IConvertible fails, and that exception is simply allowed to propagate out
// of the conversion method.
// Constant representing the database null value. This value is used in
// database applications to indicate the absense of a known value. Note
// that Value.DBNull is NOT the same as a null object reference, which is
// represented by Value.Empty.
//
// The Equals() method of DBNull always returns false, even when the
// argument is itself DBNull.
//
// When passed Value.DBNull, the Value.GetTypeCode() method returns
// TypeCode.DBNull.
//
// When passed Value.DBNull, the Value.ToXXX() methods all throw an
// InvalidCastException.
public static class Convert {
//A typeof operation is fairly expensive (does a system call), so we'll cache these here
//statically. These are exactly lined up with the TypeCode, eg. ConvertType[TypeCode.Int16]
//will give you the type of an Int16.
internal static readonly RuntimeType[] ConvertTypes = {
(RuntimeType)typeof(System.Empty),
(RuntimeType)typeof(Object),
(RuntimeType)typeof(System.DBNull),
(RuntimeType)typeof(Boolean),
(RuntimeType)typeof(Char),
(RuntimeType)typeof(SByte),
(RuntimeType)typeof(Byte),
(RuntimeType)typeof(Int16),
(RuntimeType)typeof(UInt16),
(RuntimeType)typeof(Int32),
(RuntimeType)typeof(UInt32),
(RuntimeType)typeof(Int64),
(RuntimeType)typeof(UInt64),
(RuntimeType)typeof(Single),
(RuntimeType)typeof(Double),
(RuntimeType)typeof(Decimal),
(RuntimeType)typeof(DateTime),
(RuntimeType)typeof(Object), //TypeCode is discontinuous so we need a placeholder.
(RuntimeType)typeof(String)
};
// Need to special case Enum because typecode will be underlying type, e.g. Int32
private static readonly RuntimeType EnumType = (RuntimeType)typeof(Enum);
internal static readonly char[] base64Table = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
'P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d',
'e','f','g','h','i','j','k','l','m','n','o','p','q','r','s',
't','u','v','w','x','y','z','0','1','2','3','4','5','6','7',
'8','9','+','/','=' };
#if _DEBUG
private static bool TriggerAsserts = DoAsserts();
private static bool DoAsserts() {
Contract.Assert(ConvertTypes!=null, "[Convert.cctor]ConvertTypes!=null");
Contract.Assert(ConvertTypes.Length == ((int)TypeCode.String + 1), "[Convert.cctor]ConvertTypes.Length == ((int)TypeCode.String + 1)");
Contract.Assert(ConvertTypes[(int)TypeCode.Empty]==typeof(System.Empty),
"[Convert.cctor]ConvertTypes[(int)TypeCode.Empty]==typeof(System.Empty)");
Contract.Assert(ConvertTypes[(int)TypeCode.String]==typeof(String),
"[Convert.cctor]ConvertTypes[(int)TypeCode.String]==typeof(System.String)");
Contract.Assert(ConvertTypes[(int)TypeCode.Int32]==typeof(int),
"[Convert.cctor]ConvertTypes[(int)TypeCode.Int32]==typeof(int)");
return true;
}
#endif
public static readonly Object DBNull = System.DBNull.Value;
// Returns the type code for the given object. If the argument is null,
// the result is TypeCode.Empty. If the argument is not a value (i.e. if
// the object does not implement IConvertible), the result is TypeCode.Object.
// Otherwise, the result is the type code of the object, as determined by
// the object's implementation of IConvertible.
[Pure]
public static TypeCode GetTypeCode(object value) {
if (value == null) return TypeCode.Empty;
IConvertible temp = value as IConvertible;
if (temp != null)
{
return temp.GetTypeCode();
}
return TypeCode.Object;
}
// Returns true if the given object is a database null. This operation
// corresponds to "value.GetTypeCode() == TypeCode.DBNull".
[Pure]
public static bool IsDBNull(object value) {
if (value == System.DBNull.Value) return true;
IConvertible convertible = value as IConvertible;
return convertible != null? convertible.GetTypeCode() == TypeCode.DBNull: false;
}
// Converts the given object to the given type. In general, this method is
// equivalent to calling the Value.ToXXX(value) method for the given
// typeCode and boxing the result.
//
// The method first checks if the given object implements IConvertible. If not,
// the only permitted conversion is from a null to TypeCode.Empty, the
// result of which is null.
//
// If the object does implement IConvertible, a check is made to see if the
// object already has the given type code, in which case the object is
// simply returned. Otherwise, the appropriate ToXXX() is invoked on the
// object's implementation of IConvertible.
public static Object ChangeType(Object value, TypeCode typeCode) {
return ChangeType(value, typeCode, Thread.CurrentThread.CurrentCulture);
}
public static Object ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) {
if (value == null && (typeCode == TypeCode.Empty || typeCode == TypeCode.String || typeCode == TypeCode.Object)) {
return null;
}
IConvertible v = value as IConvertible;
if (v == null) {
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_IConvertible"));
}
// This line is invalid for things like Enums that return a TypeCode
// of Int32, but the object can't actually be cast to an Int32.
// if (v.GetTypeCode() == typeCode) return value;
switch (typeCode) {
case TypeCode.Boolean:
return v.ToBoolean(provider);
case TypeCode.Char:
return v.ToChar(provider);
case TypeCode.SByte:
return v.ToSByte(provider);
case TypeCode.Byte:
return v.ToByte(provider);
case TypeCode.Int16:
return v.ToInt16(provider);
case TypeCode.UInt16:
return v.ToUInt16(provider);
case TypeCode.Int32:
return v.ToInt32(provider);
case TypeCode.UInt32:
return v.ToUInt32(provider);
case TypeCode.Int64:
return v.ToInt64(provider);
case TypeCode.UInt64:
return v.ToUInt64(provider);
case TypeCode.Single:
return v.ToSingle(provider);
case TypeCode.Double:
return v.ToDouble(provider);
case TypeCode.Decimal:
return v.ToDecimal(provider);
case TypeCode.DateTime:
return v.ToDateTime(provider);
case TypeCode.String:
return v.ToString(provider);
case TypeCode.Object:
return value;
case TypeCode.DBNull:
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
case TypeCode.Empty:
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
default:
throw new ArgumentException(Environment.GetResourceString("Arg_UnknownTypeCode"));
}
}
internal static Object DefaultToType(IConvertible value, Type targetType, IFormatProvider provider) {
Contract.Requires(value != null, "[Convert.DefaultToType]value!=null");
if (targetType==null) {
throw new ArgumentNullException("targetType");
}
Contract.EndContractBlock();
RuntimeType rtTargetType = targetType as RuntimeType;
if (rtTargetType != null)
{
if (value.GetType() == targetType)
{
return value;
}
if (rtTargetType == ConvertTypes[(int)TypeCode.Boolean])
return value.ToBoolean(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Char])
return value.ToChar(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.SByte])
return value.ToSByte(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Byte])
return value.ToByte(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int16])
return value.ToInt16(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt16])
return value.ToUInt16(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int32])
return value.ToInt32(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt32])
return value.ToUInt32(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Int64])
return value.ToInt64(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.UInt64])
return value.ToUInt64(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Single])
return value.ToSingle(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Double])
return value.ToDouble(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Decimal])
return value.ToDecimal(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.DateTime])
return value.ToDateTime(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.String])
return value.ToString(provider);
if (rtTargetType == ConvertTypes[(int)TypeCode.Object])
return (Object)value;
// Need to special case Enum because typecode will be underlying type, e.g. Int32
if (rtTargetType == EnumType)
return (Enum)value;
if (rtTargetType == ConvertTypes[(int)TypeCode.DBNull])
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_DBNull"));
if (rtTargetType == ConvertTypes[(int)TypeCode.Empty])
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_Empty"));
}
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", value.GetType().FullName, targetType.FullName));
}
public static Object ChangeType(Object value, Type conversionType) {
return ChangeType(value, conversionType, Thread.CurrentThread.CurrentCulture);
}
public static Object ChangeType(Object value, Type conversionType, IFormatProvider provider) {
if( conversionType == null) {
throw new ArgumentNullException("conversionType");
}
Contract.EndContractBlock();
if( value == null ) {
if(conversionType.IsValueType) {
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_CannotCastNullToValueType"));
}
return null;
}
IConvertible ic = value as IConvertible;
if (ic == null) {
if ( value.GetType() == conversionType) {
return value;
}
throw new InvalidCastException(Environment.GetResourceString("InvalidCast_IConvertible"));
}
RuntimeType rtConversionType = conversionType as RuntimeType;
if (rtConversionType==ConvertTypes[(int)TypeCode.Boolean])
return ic.ToBoolean(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Char])
return ic.ToChar(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.SByte])
return ic.ToSByte(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Byte])
return ic.ToByte(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int16])
return ic.ToInt16(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt16])
return ic.ToUInt16(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int32])
return ic.ToInt32(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt32])
return ic.ToUInt32(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Int64])
return ic.ToInt64(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.UInt64])
return ic.ToUInt64(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Single])
return ic.ToSingle(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Double])
return ic.ToDouble(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Decimal])
return ic.ToDecimal(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.DateTime])
return ic.ToDateTime(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.String])
return ic.ToString(provider);
if (rtConversionType==ConvertTypes[(int)TypeCode.Object])
return (Object)value;
return ic.ToType(conversionType, provider);
}
// Conversions to Boolean
public static bool ToBoolean(Object value) {
return value == null? false: ((IConvertible)value).ToBoolean(null);
}
public static bool ToBoolean(Object value, IFormatProvider provider) {
return value == null? false: ((IConvertible)value).ToBoolean(provider);
}
public static bool ToBoolean(bool value) {
return value;
}
[CLSCompliant(false)]
public static bool ToBoolean(sbyte value) {
return value != 0;
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static bool ToBoolean(char value) {
return ((IConvertible)value).ToBoolean(null);
}
public static bool ToBoolean(byte value) {
return value != 0;
}
public static bool ToBoolean(short value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(ushort value) {
return value != 0;
}
public static bool ToBoolean(int value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(uint value) {
return value != 0;
}
public static bool ToBoolean(long value) {
return value != 0;
}
[CLSCompliant(false)]
public static bool ToBoolean(ulong value) {
return value != 0;
}
public static bool ToBoolean(String value) {
if (value == null)
return false;
return Boolean.Parse(value);
}
public static bool ToBoolean(String value, IFormatProvider provider) {
if (value == null)
return false;
return Boolean.Parse(value);
}
public static bool ToBoolean(float value)
{
return value != 0;
}
public static bool ToBoolean(double value)
{
return value != 0;
}
public static bool ToBoolean(decimal value)
{
return value != 0;
}
public static bool ToBoolean(DateTime value)
{
return ((IConvertible)value).ToBoolean(null);
}
// Disallowed conversions to Boolean
// public static bool ToBoolean(TimeSpan value)
// Conversions to Char
public static char ToChar(object value) {
return value == null? (char)0: ((IConvertible)value).ToChar(null);
}
public static char ToChar(object value, IFormatProvider provider) {
return value == null? (char)0: ((IConvertible)value).ToChar(provider);
}
public static char ToChar(bool value) {
return ((IConvertible)value).ToChar(null);
}
public static char ToChar(char value) {
return value;
}
[CLSCompliant(false)]
public static char ToChar(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
public static char ToChar(byte value) {
return (char)value;
}
public static char ToChar(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(ushort value) {
return (char)value;
}
public static char ToChar(int value) {
if (value < 0 || value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(uint value) {
if (value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
public static char ToChar(long value) {
if (value < 0 || value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
[CLSCompliant(false)]
public static char ToChar(ulong value) {
if (value > Char.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Char"));
Contract.EndContractBlock();
return (char)value;
}
//
// @VariantSwitch
// Remove FormatExceptions;
//
public static char ToChar(String value) {
return ToChar(value, null);
}
public static char ToChar(String value, IFormatProvider provider) {
if (value == null)
throw new ArgumentNullException("value");
Contract.EndContractBlock();
if (value.Length != 1)
throw new FormatException(Environment.GetResourceString(ResId.Format_NeedSingleChar));
return value[0];
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(float value)
{
return ((IConvertible)value).ToChar(null);
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(double value)
{
return ((IConvertible)value).ToChar(null);
}
// To be consistent with IConvertible in the base data types else we get different semantics
// with widening operations. Without this operator this widen succeeds,with this API the widening throws.
public static char ToChar(decimal value)
{
return ((IConvertible)value).ToChar(null);
}
public static char ToChar(DateTime value)
{
return ((IConvertible)value).ToChar(null);
}
// Disallowed conversions to Char
// public static char ToChar(TimeSpan value)
// Conversions to SByte
[CLSCompliant(false)]
public static sbyte ToSByte(object value) {
return value == null? (sbyte)0: ((IConvertible)value).ToSByte(null);
}
[CLSCompliant(false)]
public static sbyte ToSByte(object value, IFormatProvider provider) {
return value == null? (sbyte)0: ((IConvertible)value).ToSByte(provider);
}
[CLSCompliant(false)]
public static sbyte ToSByte(bool value) {
return value? (sbyte)Boolean.True: (sbyte)Boolean.False;
}
[CLSCompliant(false)]
public static sbyte ToSByte(sbyte value) {
return value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(char value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(byte value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(short value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(ushort value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(int value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(uint value) {
if (value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(long value) {
if (value < SByte.MinValue || value > SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(ulong value) {
if (value > (ulong)SByte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
Contract.EndContractBlock();
return (sbyte)value;
}
[CLSCompliant(false)]
public static sbyte ToSByte(float value) {
return ToSByte((double)value);
}
[CLSCompliant(false)]
public static sbyte ToSByte(double value) {
return ToSByte(ToInt32(value));
}
[CLSCompliant(false)]
public static sbyte ToSByte(decimal value) {
return Decimal.ToSByte(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static sbyte ToSByte(String value) {
if (value == null)
return 0;
return SByte.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static sbyte ToSByte(String value, IFormatProvider provider) {
return SByte.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static sbyte ToSByte(DateTime value)
{
return ((IConvertible)value).ToSByte(null);
}
// Disallowed conversions to SByte
// public static sbyte ToSByte(TimeSpan value)
// Conversions to Byte
public static byte ToByte(object value) {
return value == null? (byte)0: ((IConvertible)value).ToByte(null);
}
public static byte ToByte(object value, IFormatProvider provider) {
return value == null? (byte)0: ((IConvertible)value).ToByte(provider);
}
public static byte ToByte(bool value) {
return value? (byte)Boolean.True: (byte)Boolean.False;
}
public static byte ToByte(byte value) {
return value;
}
public static byte ToByte(char value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(sbyte value) {
if (value < Byte.MinValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(short value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(ushort value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(int value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(uint value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(long value) {
if (value < Byte.MinValue || value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
[CLSCompliant(false)]
public static byte ToByte(ulong value) {
if (value > Byte.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
Contract.EndContractBlock();
return (byte)value;
}
public static byte ToByte(float value) {
return ToByte((double)value);
}
public static byte ToByte(double value) {
return ToByte(ToInt32(value));
}
public static byte ToByte(decimal value) {
return Decimal.ToByte(Decimal.Round(value, 0));
}
public static byte ToByte(String value) {
if (value == null)
return 0;
return Byte.Parse(value, CultureInfo.CurrentCulture);
}
public static byte ToByte(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Byte.Parse(value, NumberStyles.Integer, provider);
}
public static byte ToByte(DateTime value)
{
return ((IConvertible)value).ToByte(null);
}
// Disallowed conversions to Byte
// public static byte ToByte(TimeSpan value)
// Conversions to Int16
public static short ToInt16(object value) {
return value == null? (short)0: ((IConvertible)value).ToInt16(null);
}
public static short ToInt16(object value, IFormatProvider provider) {
return value == null? (short)0: ((IConvertible)value).ToInt16(provider);
}
public static short ToInt16(bool value) {
return value? (short)Boolean.True: (short)Boolean.False;
}
public static short ToInt16(char value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(sbyte value) {
return value;
}
public static short ToInt16(byte value) {
return value;
}
[CLSCompliant(false)]
public static short ToInt16(ushort value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(int value) {
if (value < Int16.MinValue || value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(uint value) {
if (value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(short value) {
return value;
}
public static short ToInt16(long value) {
if (value < Int16.MinValue || value > Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
[CLSCompliant(false)]
public static short ToInt16(ulong value) {
if (value > (ulong)Int16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
Contract.EndContractBlock();
return (short)value;
}
public static short ToInt16(float value) {
return ToInt16((double)value);
}
public static short ToInt16(double value) {
return ToInt16(ToInt32(value));
}
public static short ToInt16(decimal value) {
return Decimal.ToInt16(Decimal.Round(value, 0));
}
public static short ToInt16(String value) {
if (value == null)
return 0;
return Int16.Parse(value, CultureInfo.CurrentCulture);
}
public static short ToInt16(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int16.Parse(value, NumberStyles.Integer, provider);
}
public static short ToInt16(DateTime value)
{
return ((IConvertible)value).ToInt16(null);
}
// Disallowed conversions to Int16
// public static short ToInt16(TimeSpan value)
// Conversions to UInt16
[CLSCompliant(false)]
public static ushort ToUInt16(object value) {
return value == null? (ushort)0: ((IConvertible)value).ToUInt16(null);
}
[CLSCompliant(false)]
public static ushort ToUInt16(object value, IFormatProvider provider) {
return value == null? (ushort)0: ((IConvertible)value).ToUInt16(provider);
}
[CLSCompliant(false)]
public static ushort ToUInt16(bool value) {
return value? (ushort)Boolean.True: (ushort)Boolean.False;
}
[CLSCompliant(false)]
public static ushort ToUInt16(char value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(byte value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(int value) {
if (value < 0 || value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(ushort value) {
return value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(uint value) {
if (value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(long value) {
if (value < 0 || value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(ulong value) {
if (value > UInt16.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
Contract.EndContractBlock();
return (ushort)value;
}
[CLSCompliant(false)]
public static ushort ToUInt16(float value) {
return ToUInt16((double)value);
}
[CLSCompliant(false)]
public static ushort ToUInt16(double value) {
return ToUInt16(ToInt32(value));
}
[CLSCompliant(false)]
public static ushort ToUInt16(decimal value) {
return Decimal.ToUInt16(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static ushort ToUInt16(String value) {
if (value == null)
return 0;
return UInt16.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static ushort ToUInt16(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt16.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static ushort ToUInt16(DateTime value)
{
return ((IConvertible)value).ToUInt16(null);
}
// Disallowed conversions to UInt16
// public static ushort ToUInt16(TimeSpan value)
// Conversions to Int32
public static int ToInt32(object value) {
return value == null? 0: ((IConvertible)value).ToInt32(null);
}
public static int ToInt32(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToInt32(provider);
}
public static int ToInt32(bool value) {
return value? Boolean.True: Boolean.False;
}
public static int ToInt32(char value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(sbyte value) {
return value;
}
public static int ToInt32(byte value) {
return value;
}
public static int ToInt32(short value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(ushort value) {
return value;
}
[CLSCompliant(false)]
public static int ToInt32(uint value) {
if (value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
public static int ToInt32(int value) {
return value;
}
public static int ToInt32(long value) {
if (value < Int32.MinValue || value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
[CLSCompliant(false)]
public static int ToInt32(ulong value) {
if (value > Int32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
Contract.EndContractBlock();
return (int)value;
}
public static int ToInt32(float value) {
return ToInt32((double)value);
}
public static int ToInt32(double value) {
if (value >= 0) {
if (value < 2147483647.5) {
int result = (int)value;
double dif = value - result;
if (dif > 0.5 || dif == 0.5 && (result & 1) != 0) result++;
return result;
}
}
else {
if (value >= -2147483648.5) {
int result = (int)value;
double dif = value - result;
if (dif < -0.5 || dif == -0.5 && (result & 1) != 0) result--;
return result;
}
}
throw new OverflowException(Environment.GetResourceString("Overflow_Int32"));
}
[System.Security.SecuritySafeCritical] // auto-generated
public static int ToInt32(decimal value) {
return Decimal.FCallToInt32(value);
}
public static int ToInt32(String value) {
if (value == null)
return 0;
return Int32.Parse(value, CultureInfo.CurrentCulture);
}
public static int ToInt32(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int32.Parse(value, NumberStyles.Integer, provider);
}
public static int ToInt32(DateTime value)
{
return ((IConvertible)value).ToInt32(null);
}
// Disallowed conversions to Int32
// public static int ToInt32(TimeSpan value)
// Conversions to UInt32
[CLSCompliant(false)]
public static uint ToUInt32(object value) {
return value == null? 0: ((IConvertible)value).ToUInt32(null);
}
[CLSCompliant(false)]
public static uint ToUInt32(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToUInt32(provider);
}
[CLSCompliant(false)]
public static uint ToUInt32(bool value) {
return value? (uint)Boolean.True: (uint)Boolean.False;
}
[CLSCompliant(false)]
public static uint ToUInt32(char value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(byte value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(ushort value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(int value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(uint value) {
return value;
}
[CLSCompliant(false)]
public static uint ToUInt32(long value) {
if (value < 0 || value > UInt32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(ulong value) {
if (value > UInt32.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
Contract.EndContractBlock();
return (uint)value;
}
[CLSCompliant(false)]
public static uint ToUInt32(float value) {
return ToUInt32((double)value);
}
[CLSCompliant(false)]
public static uint ToUInt32(double value) {
if (value >= -0.5 && value < 4294967295.5) {
uint result = (uint)value;
double dif = value - result;
if (dif > 0.5 || dif == 0.5 && (result & 1) != 0) result++;
return result;
}
throw new OverflowException(Environment.GetResourceString("Overflow_UInt32"));
}
[CLSCompliant(false)]
public static uint ToUInt32(decimal value) {
return Decimal.ToUInt32(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static uint ToUInt32(String value) {
if (value == null)
return 0;
return UInt32.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static uint ToUInt32(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt32.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static uint ToUInt32(DateTime value)
{
return ((IConvertible)value).ToUInt32(null);
}
// Disallowed conversions to UInt32
// public static uint ToUInt32(TimeSpan value)
// Conversions to Int64
public static long ToInt64(object value) {
return value == null? 0: ((IConvertible)value).ToInt64(null);
}
public static long ToInt64(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToInt64(provider);
}
public static long ToInt64(bool value) {
return value? Boolean.True: Boolean.False;
}
public static long ToInt64(char value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(sbyte value) {
return value;
}
public static long ToInt64(byte value) {
return value;
}
public static long ToInt64(short value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(ushort value) {
return value;
}
public static long ToInt64(int value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(uint value) {
return value;
}
[CLSCompliant(false)]
public static long ToInt64(ulong value) {
if (value > Int64.MaxValue) throw new OverflowException(Environment.GetResourceString("Overflow_Int64"));
Contract.EndContractBlock();
return (long)value;
}
public static long ToInt64(long value) {
return value;
}
public static long ToInt64(float value) {
return ToInt64((double)value);
}
[System.Security.SecuritySafeCritical] // auto-generated
public static long ToInt64(double value) {
return checked((long)Math.Round(value));
}
public static long ToInt64(decimal value) {
return Decimal.ToInt64(Decimal.Round(value, 0));
}
public static long ToInt64(string value) {
if (value == null)
return 0;
return Int64.Parse(value, CultureInfo.CurrentCulture);
}
public static long ToInt64(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Int64.Parse(value, NumberStyles.Integer, provider);
}
public static long ToInt64(DateTime value)
{
return ((IConvertible)value).ToInt64(null);
}
// Disallowed conversions to Int64
// public static long ToInt64(TimeSpan value)
// Conversions to UInt64
[CLSCompliant(false)]
public static ulong ToUInt64(object value) {
return value == null? 0: ((IConvertible)value).ToUInt64(null);
}
[CLSCompliant(false)]
public static ulong ToUInt64(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToUInt64(provider);
}
[CLSCompliant(false)]
public static ulong ToUInt64(bool value) {
return value? (ulong)Boolean.True: (ulong)Boolean.False;
}
[CLSCompliant(false)]
public static ulong ToUInt64(char value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(sbyte value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(byte value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(short value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(ushort value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(int value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(uint value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(long value) {
if (value < 0) throw new OverflowException(Environment.GetResourceString("Overflow_UInt64"));
Contract.EndContractBlock();
return (ulong)value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(UInt64 value) {
return value;
}
[CLSCompliant(false)]
public static ulong ToUInt64(float value) {
return ToUInt64((double)value);
}
[System.Security.SecuritySafeCritical] // auto-generated
[CLSCompliant(false)]
public static ulong ToUInt64(double value) {
return checked((ulong)Math.Round(value));
}
[CLSCompliant(false)]
public static ulong ToUInt64(decimal value) {
return Decimal.ToUInt64(Decimal.Round(value, 0));
}
[CLSCompliant(false)]
public static ulong ToUInt64(String value) {
if (value == null)
return 0;
return UInt64.Parse(value, CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static ulong ToUInt64(String value, IFormatProvider provider) {
if (value == null)
return 0;
return UInt64.Parse(value, NumberStyles.Integer, provider);
}
[CLSCompliant(false)]
public static ulong ToUInt64(DateTime value)
{
return ((IConvertible)value).ToUInt64(null);
}
// Disallowed conversions to UInt64
// public static ulong ToUInt64(TimeSpan value)
// Conversions to Single
public static float ToSingle(object value) {
return value == null? 0: ((IConvertible)value).ToSingle(null);
}
public static float ToSingle(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToSingle(provider);
}
[CLSCompliant(false)]
public static float ToSingle(sbyte value) {
return value;
}
public static float ToSingle(byte value) {
return value;
}
public static float ToSingle(char value) {
return ((IConvertible)value).ToSingle(null);
}
public static float ToSingle(short value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(ushort value) {
return value;
}
public static float ToSingle(int value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(uint value) {
return value;
}
public static float ToSingle(long value) {
return value;
}
[CLSCompliant(false)]
public static float ToSingle(ulong value) {
return value;
}
public static float ToSingle(float value) {
return value;
}
public static float ToSingle(double value) {
return (float)value;
}
public static float ToSingle(decimal value) {
return (float)value;
}
public static float ToSingle(String value) {
if (value == null)
return 0;
return Single.Parse(value, CultureInfo.CurrentCulture);
}
public static float ToSingle(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Single.Parse(value, NumberStyles.Float | NumberStyles.AllowThousands, provider);
}
public static float ToSingle(bool value)
{
return value? Boolean.True: Boolean.False;
}
public static float ToSingle(DateTime value)
{
return ((IConvertible)value).ToSingle(null);
}
// Disallowed conversions to Single
// public static float ToSingle(TimeSpan value)
// Conversions to Double
public static double ToDouble(object value) {
return value == null? 0: ((IConvertible)value).ToDouble(null);
}
public static double ToDouble(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToDouble(provider);
}
[CLSCompliant(false)]
public static double ToDouble(sbyte value) {
return value;
}
public static double ToDouble(byte value) {
return value;
}
public static double ToDouble(short value) {
return value;
}
public static double ToDouble(char value) {
return ((IConvertible)value).ToDouble(null);
}
[CLSCompliant(false)]
public static double ToDouble(ushort value) {
return value;
}
public static double ToDouble(int value) {
return value;
}
[CLSCompliant(false)]
public static double ToDouble(uint value) {
return value;
}
public static double ToDouble(long value) {
return value;
}
[CLSCompliant(false)]
public static double ToDouble(ulong value) {
return value;
}
public static double ToDouble(float value) {
return value;
}
public static double ToDouble(double value) {
return value;
}
public static double ToDouble(decimal value) {
return (double)value;
}
public static double ToDouble(String value) {
if (value == null)
return 0;
return Double.Parse(value, CultureInfo.CurrentCulture);
}
public static double ToDouble(String value, IFormatProvider provider) {
if (value == null)
return 0;
return Double.Parse(value, NumberStyles.Float | NumberStyles.AllowThousands, provider);
}
public static double ToDouble(bool value) {
return value? Boolean.True: Boolean.False;
}
public static double ToDouble(DateTime value)
{
return ((IConvertible)value).ToDouble(null);
}
// Disallowed conversions to Double
// public static double ToDouble(TimeSpan value)
// Conversions to Decimal
public static decimal ToDecimal(object value) {
return value == null? 0: ((IConvertible)value).ToDecimal(null);
}
public static decimal ToDecimal(object value, IFormatProvider provider) {
return value == null? 0: ((IConvertible)value).ToDecimal(provider);
}
[CLSCompliant(false)]
public static decimal ToDecimal(sbyte value) {
return value;
}
public static decimal ToDecimal(byte value) {
return value;
}
public static decimal ToDecimal(char value) {
return ((IConvertible)value).ToDecimal(null);
}
public static decimal ToDecimal(short value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(ushort value) {
return value;
}
public static decimal ToDecimal(int value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(uint value) {
return value;
}
public static decimal ToDecimal(long value) {
return value;
}
[CLSCompliant(false)]
public static decimal ToDecimal(ulong value) {
return value;
}
public static decimal ToDecimal(float value) {
return (decimal)value;
}
public static decimal ToDecimal(double value) {
return (decimal)value;
}
public static decimal ToDecimal(String value) {
if (value == null)
return 0m;
return Decimal.Parse(value, CultureInfo.CurrentCulture);
}
public static Decimal ToDecimal(String value, IFormatProvider provider) {
if (value == null)
return 0m;
return Decimal.Parse(value, NumberStyles.Number, provider);
}
public static decimal ToDecimal(decimal value) {
return value;
}
public static decimal ToDecimal(bool value) {
return value? Boolean.True: Boolean.False;
}
public static decimal ToDecimal(DateTime value)
{
return ((IConvertible)value).ToDecimal(null);
}
// Disallowed conversions to Decimal
// public static decimal ToDecimal(TimeSpan value)
// Conversions to DateTime
public static DateTime ToDateTime(DateTime value) {
return value;
}
public static DateTime ToDateTime(object value) {
return value == null? DateTime.MinValue: ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(object value, IFormatProvider provider) {
return value == null? DateTime.MinValue: ((IConvertible)value).ToDateTime(provider);
}
public static DateTime ToDateTime(String value) {
if (value == null)
return new DateTime(0);
return DateTime.Parse(value, CultureInfo.CurrentCulture);
}
public static DateTime ToDateTime(String value, IFormatProvider provider) {
if (value == null)
return new DateTime(0);
return DateTime.Parse(value, provider);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(sbyte value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(byte value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(short value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(ushort value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(int value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(uint value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(long value) {
return ((IConvertible)value).ToDateTime(null);
}
[CLSCompliant(false)]
public static DateTime ToDateTime(ulong value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(bool value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(char value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(float value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(double value) {
return ((IConvertible)value).ToDateTime(null);
}
public static DateTime ToDateTime(decimal value) {
return ((IConvertible)value).ToDateTime(null);
}
// Disallowed conversions to DateTime
// public static DateTime ToDateTime(TimeSpan value)
// Conversions to String
public static string ToString(Object value) {
return ToString(value,null);
}
public static string ToString(Object value, IFormatProvider provider) {
IConvertible ic = value as IConvertible;
if (ic != null)
return ic.ToString(provider);
IFormattable formattable = value as IFormattable;
if (formattable != null)
return formattable.ToString(null, provider);
return value == null? String.Empty: value.ToString();
}
public static string ToString(bool value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString();
}
public static string ToString(bool value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(char value) {
Contract.Ensures(Contract.Result() != null);
return Char.ToString(value);
}
public static string ToString(char value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(sbyte value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(sbyte value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(byte value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(byte value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(short value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(short value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(ushort value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(ushort value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(int value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(int value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(uint value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(uint value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(long value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(long value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
[CLSCompliant(false)]
public static string ToString(ulong value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
[CLSCompliant(false)]
public static string ToString(ulong value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(float value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(float value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(double value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(double value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(decimal value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(CultureInfo.CurrentCulture);
}
public static string ToString(Decimal value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static string ToString(DateTime value) {
Contract.Ensures(Contract.Result() != null);
return value.ToString();
}
public static string ToString(DateTime value, IFormatProvider provider) {
Contract.Ensures(Contract.Result() != null);
return value.ToString(provider);
}
public static String ToString(String value) {
Contract.Ensures(Contract.Result() == value); // We were always skipping the null check here.
return value;
}
public static String ToString(String value,IFormatProvider provider) {
Contract.Ensures(Contract.Result() == value); // We were always skipping the null check here.
return value; // avoid the null check
}
//
// Conversions which understand Base XXX numbers.
//
// Parses value in base base. base can only
// be 2, 8, 10, or 16. If base is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static byte ToByte (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsUnsigned);
if (r < Byte.MinValue || r > Byte.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_Byte"));
return (byte) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static sbyte ToSByte (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsI1);
if (fromBase != 10 && r <= Byte.MaxValue)
return (sbyte)r;
if (r < SByte.MinValue || r > SByte.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
return (sbyte) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static short ToInt16 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsI2);
if (fromBase != 10 && r <= UInt16.MaxValue)
return (short)r;
if (r < Int16.MinValue || r > Int16.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_Int16"));
return (short) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static ushort ToUInt16 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
int r = ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight | ParseNumbers.TreatAsUnsigned);
if (r < UInt16.MinValue || r > UInt16.MaxValue)
throw new OverflowException(Environment.GetResourceString("Overflow_UInt16"));
return (ushort) r;
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static int ToInt32 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.StringToInt(value,fromBase,ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static uint ToUInt32 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return (uint) ParseNumbers.StringToInt(value,fromBase, ParseNumbers.TreatAsUnsigned | ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
public static long ToInt64 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.StringToLong(value,fromBase,ParseNumbers.IsTight);
}
// Parses value in base fromBase. fromBase can only
// be 2, 8, 10, or 16. If fromBase is 16, the number may be preceded
// by 0x; any other leading or trailing characters cause an error.
//
[CLSCompliant(false)]
public static ulong ToUInt64 (String value, int fromBase) {
if (fromBase!=2 && fromBase!=8 && fromBase!=10 && fromBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return (ulong) ParseNumbers.StringToLong(value,fromBase, ParseNumbers.TreatAsUnsigned | ParseNumbers.IsTight);
}
// Convert the byte value to a string in base fromBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (byte value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString((int)value, toBase, -1, ' ', ParseNumbers.PrintAsI1);
}
// Convert the Int16 value to a string in base fromBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (short value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString((int)value, toBase, -1, ' ', ParseNumbers.PrintAsI2);
}
// Convert the Int32 value to a string in base toBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (int value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.IntToString(value, toBase, -1, ' ', 0);
}
// Convert the Int64 value to a string in base toBase
[System.Security.SecuritySafeCritical] // auto-generated
public static String ToString (long value, int toBase) {
if (toBase!=2 && toBase!=8 && toBase!=10 && toBase!=16) {
throw new ArgumentException(Environment.GetResourceString("Arg_InvalidBase"));
}
Contract.EndContractBlock();
return ParseNumbers.LongToString(value, toBase, -1, ' ', 0);
}
public static String ToBase64String(byte[] inArray) {
if (inArray==null) {
throw new ArgumentNullException("inArray");
}
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
return ToBase64String(inArray, 0, inArray.Length, Base64FormattingOptions.None);
}
[System.Runtime.InteropServices.ComVisible(false)]
public static String ToBase64String(byte[] inArray, Base64FormattingOptions options) {
if (inArray==null) {
throw new ArgumentNullException("inArray");
}
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
return ToBase64String(inArray, 0, inArray.Length, options);
}
public static String ToBase64String(byte[] inArray, int offset, int length) {
return ToBase64String(inArray, offset, length, Base64FormattingOptions.None);
}
[System.Security.SecuritySafeCritical] // auto-generated
[System.Runtime.InteropServices.ComVisible(false)]
public static unsafe String ToBase64String(byte[] inArray, int offset, int length, Base64FormattingOptions options) {
//Do data verfication
if (inArray==null)
throw new ArgumentNullException("inArray");
if (length<0)
throw new ArgumentOutOfRangeException("length", Environment.GetResourceString("ArgumentOutOfRange_Index"));
if (offset<0)
throw new ArgumentOutOfRangeException("offset", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if (options < Base64FormattingOptions.None || options > Base64FormattingOptions.InsertLineBreaks)
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", (int)options));
Contract.Ensures(Contract.Result() != null);
Contract.EndContractBlock();
int inArrayLength;
int stringLength;
inArrayLength = inArray.Length;
if (offset > (inArrayLength - length))
throw new ArgumentOutOfRangeException("offset", Environment.GetResourceString("ArgumentOutOfRange_OffsetLength"));
if (inArrayLength == 0)
return String.Empty;
bool insertLineBreaks = (options == Base64FormattingOptions.InsertLineBreaks);
//Create the new string. This is the maximally required length.
stringLength = CalculateOutputLength(length, insertLineBreaks);
string returnString = string.FastAllocateString(stringLength);
fixed (char* outChars = returnString){
fixed (byte* inData = inArray) {
int j = ConvertToBase64Array(outChars,inData,offset,length, insertLineBreaks);
BCLDebug.Assert(returnString.Length == j, "returnString.Length == j");
return returnString;
}
}
}
public static int ToBase64CharArray(byte[] inArray, int offsetIn, int length, char[] outArray, int offsetOut) {
Contract.Ensures(Contract.Result() >= 0);
Contract.Ensures(Contract.Result() <= outArray.Length);
Contract.EndContractBlock();
return ToBase64CharArray(inArray, offsetIn, length, outArray, offsetOut, Base64FormattingOptions.None);
}
[System.Security.SecuritySafeCritical] // auto-generated
[System.Runtime.InteropServices.ComVisible(false)]
public static unsafe int ToBase64CharArray(byte[] inArray, int offsetIn, int length, char[] outArray, int offsetOut, Base64FormattingOptions options) {
//Do data verfication
if (inArray==null)
throw new ArgumentNullException("inArray");
if (outArray==null)
throw new ArgumentNullException("outArray");
if (length<0)
throw new ArgumentOutOfRangeException("length", Environment.GetResourceString("ArgumentOutOfRange_Index"));
if (offsetIn<0)
throw new ArgumentOutOfRangeException("offsetIn", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if (offsetOut<0)
throw new ArgumentOutOfRangeException("offsetOut", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
if( options < Base64FormattingOptions.None || options > Base64FormattingOptions.InsertLineBreaks) {
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", (int)options));
}
Contract.Ensures(Contract.Result() >= 0);
Contract.Ensures(Contract.Result() <= outArray.Length);
Contract.EndContractBlock();
int retVal;
int inArrayLength;
int outArrayLength;
int numElementsToCopy;
inArrayLength = inArray.Length;
if (offsetIn > (int)(inArrayLength - length))
throw new ArgumentOutOfRangeException("offsetIn", Environment.GetResourceString("ArgumentOutOfRange_OffsetLength"));
if (inArrayLength == 0)
return 0;
bool insertLineBreaks = (options == Base64FormattingOptions.InsertLineBreaks);
//This is the maximally required length that must be available in the char array
outArrayLength = outArray.Length;
// Length of the char buffer required
numElementsToCopy = CalculateOutputLength(length, insertLineBreaks);
if (offsetOut > (int)(outArrayLength - numElementsToCopy))
throw new ArgumentOutOfRangeException("offsetOut", Environment.GetResourceString("ArgumentOutOfRange_OffsetOut"));
fixed (char* outChars = &outArray[offsetOut]) {
fixed (byte* inData = inArray) {
retVal = ConvertToBase64Array(outChars,inData,offsetIn,length, insertLineBreaks);
}
}
return retVal;
}
[System.Security.SecurityCritical] // auto-generated
private static unsafe int ConvertToBase64Array(char* outChars, byte* inData, int offset, int length, bool insertLineBreaks) {
int lengthmod3 = length%3;
int calcLength = offset + (length - lengthmod3);
int j=0;
int charcount = 0;
//Convert three bytes at a time to base64 notation. This will consume 4 chars.
int i;
// get a pointer to the base64Table to avoid unnecessary range checking
fixed(char* base64 = base64Table) {
for (i=offset; i>2];
outChars[j+1] = base64[((inData[i]&0x03)<<4) | ((inData[i+1]&0xf0)>>4)];
outChars[j+2] = base64[((inData[i+1]&0x0f)<<2) | ((inData[i+2]&0xc0)>>6)];
outChars[j+3] = base64[(inData[i+2]&0x3f)];
j += 4;
}
//Where we left off before
i = calcLength;
if (insertLineBreaks && (lengthmod3 !=0) && (charcount == 76)) {
outChars[j++] = '\r';
outChars[j++] = '\n';
}
switch(lengthmod3)
{
case 2: //One character padding needed
outChars[j] = base64[(inData[i]&0xfc)>>2];
outChars[j+1] = base64[((inData[i]&0x03)<<4)|((inData[i+1]&0xf0)>>4)];
outChars[j+2] = base64[(inData[i+1]&0x0f)<<2];
outChars[j+3] = base64[64]; //Pad
j+=4;
break;
case 1: // Two character padding needed
outChars[j] = base64[(inData[i]&0xfc)>>2];
outChars[j+1] = base64[(inData[i]&0x03)<<4];
outChars[j+2] = base64[64]; //Pad
outChars[j+3] = base64[64]; //Pad
j+=4;
break;
}
}
return j;
}
private static int CalculateOutputLength(int inputLength, bool insertLineBreaks) {
int outlen = (int)( inputLength / 3 * 4); // the base length - we want integer division here.
outlen += ((inputLength % 3) != 0) ? 4 : 0; // at most 4 more chars for the remainder
if (outlen ==0 )
return outlen;
if (insertLineBreaks) {
int newLines = outlen / 76;
if( (outlen % 76) == 0) {
--newLines;
}
outlen += newLines * 2; // the number of line break chars we'll add, "\r\n"
}
return outlen;
}
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public static extern byte[] FromBase64String(String s);
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public static extern byte[] FromBase64CharArray(char[] inArray, int offset, int length);
}
[Flags]
public enum Base64FormattingOptions {
None = 0,
InsertLineBreaks = 1
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- TextFragmentEngine.cs
- TextSelection.cs
- DoubleUtil.cs
- XPathScanner.cs
- EditModeSwitchButton.cs
- ExpressionNormalizer.cs
- EntityDataSourceStatementEditorForm.cs
- SolidBrush.cs
- JsonByteArrayDataContract.cs
- Misc.cs
- BasicHttpSecurityElement.cs
- CapiSymmetricAlgorithm.cs
- ExpressionConverter.cs
- TemplateNameScope.cs
- AutomationPatternInfo.cs
- ContextStaticAttribute.cs
- Geometry.cs
- CustomAssemblyResolver.cs
- MultiPageTextView.cs
- SwitchLevelAttribute.cs
- XmlStringTable.cs
- DocumentApplication.cs
- ParamArrayAttribute.cs
- XmlArrayItemAttributes.cs
- MessageQueueException.cs
- PresentationTraceSources.cs
- ValidatingPropertiesEventArgs.cs
- WSFederationHttpSecurityElement.cs
- BufferedOutputStream.cs
- UnrecognizedAssertionsBindingElement.cs
- CaseInsensitiveOrdinalStringComparer.cs
- InvalidCommandTreeException.cs
- processwaithandle.cs
- DbCommandTree.cs
- PageSettings.cs
- EventProviderWriter.cs
- UInt32Storage.cs
- PostBackTrigger.cs
- SchemaSetCompiler.cs
- WithStatement.cs
- ExeContext.cs
- VisualCollection.cs
- SafeHandles.cs
- SystemTcpConnection.cs
- XmlDataFileEditor.cs
- FontFamilyValueSerializer.cs
- RtfControls.cs
- ResourceManager.cs
- MouseButton.cs
- AsyncContentLoadedEventArgs.cs
- Serializer.cs
- TitleStyle.cs
- TemplateParser.cs
- QueryGeneratorBase.cs
- HyperLinkDataBindingHandler.cs
- RegionIterator.cs
- DrawingImage.cs
- NameValuePermission.cs
- MultiplexingDispatchMessageFormatter.cs
- MetafileHeaderWmf.cs
- LockRenewalTask.cs
- PageStatePersister.cs
- QuaternionRotation3D.cs
- MessagePartSpecification.cs
- ConfigurationStrings.cs
- DependencyPropertyConverter.cs
- DynamicRendererThreadManager.cs
- ZipIOLocalFileDataDescriptor.cs
- CodeIterationStatement.cs
- TextHidden.cs
- GiveFeedbackEventArgs.cs
- BinaryParser.cs
- XmlBindingWorker.cs
- InteropBitmapSource.cs
- WebPartMenuStyle.cs
- XmlWrappingReader.cs
- UnaryOperationBinder.cs
- HtmlElementCollection.cs
- MenuAdapter.cs
- CompilerGeneratedAttribute.cs
- SQLGuid.cs
- HttpRequestWrapper.cs
- SplayTreeNode.cs
- ConfigurationSectionCollection.cs
- DocumentApplicationJournalEntryEventArgs.cs
- SkewTransform.cs
- SqlMultiplexer.cs
- PeerNeighborManager.cs
- XmlAttributeCollection.cs
- FtpRequestCacheValidator.cs
- VariableQuery.cs
- ConstantSlot.cs
- Message.cs
- PersonalizationProvider.cs
- Encoder.cs
- OracleBoolean.cs
- DataBindingCollection.cs
- ProxyManager.cs
- SqlCacheDependencyDatabase.cs
- HealthMonitoringSectionHelper.cs