591 lines
15 KiB
C#
591 lines
15 KiB
C#
//
|
|
// System.UInt32.cs
|
|
//
|
|
// Authors:
|
|
// Miguel de Icaza (miguel@ximian.com)
|
|
// Marek Safar (marek.safar@gmail.com)
|
|
//
|
|
// (C) Ximian, Inc. http://www.ximian.com
|
|
// Copyright (C) 2004 Novell (http://www.novell.com)
|
|
// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
using System.Globalization;
|
|
using System.Threading;
|
|
|
|
namespace System
|
|
{
|
|
[Serializable]
|
|
[CLSCompliant (false)]
|
|
[System.Runtime.InteropServices.ComVisible (true)]
|
|
public struct UInt32 : IFormattable, IConvertible, IComparable, IComparable<UInt32>, IEquatable <UInt32>
|
|
{
|
|
public const uint MaxValue = 0xffffffff;
|
|
public const uint MinValue = 0;
|
|
|
|
internal uint m_value;
|
|
|
|
public int CompareTo (object value)
|
|
{
|
|
if (value == null)
|
|
return 1;
|
|
|
|
if (!(value is System.UInt32))
|
|
throw new ArgumentException (Locale.GetText ("Value is not a System.UInt32."));
|
|
|
|
uint val = (uint) value;
|
|
|
|
if (m_value == val)
|
|
return 0;
|
|
|
|
return (m_value < val) ? -1 : 1;
|
|
}
|
|
|
|
public override bool Equals (object obj)
|
|
{
|
|
if (!(obj is System.UInt32))
|
|
return false;
|
|
|
|
return ((uint) obj) == m_value;
|
|
}
|
|
|
|
public override int GetHashCode ()
|
|
{
|
|
return (int) m_value;
|
|
}
|
|
|
|
public int CompareTo (uint value)
|
|
{
|
|
if (m_value == value)
|
|
return 0;
|
|
if (m_value > value)
|
|
return 1;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
public bool Equals (uint obj)
|
|
{
|
|
return obj == m_value;
|
|
}
|
|
|
|
internal static bool Parse (string s, bool tryParse, out uint result, out Exception exc)
|
|
{
|
|
uint val = 0;
|
|
int len;
|
|
int i;
|
|
bool digits_seen = false;
|
|
bool has_negative_sign = false;
|
|
|
|
result = 0;
|
|
exc = null;
|
|
|
|
if (s == null) {
|
|
if (!tryParse)
|
|
exc = new ArgumentNullException ("s");
|
|
return false;
|
|
}
|
|
|
|
len = s.Length;
|
|
|
|
char c;
|
|
for (i = 0; i < len; i++) {
|
|
c = s [i];
|
|
if (!Char.IsWhiteSpace (c))
|
|
break;
|
|
}
|
|
|
|
if (i == len) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
if (s [i] == '+')
|
|
i++;
|
|
else
|
|
if (s[i] == '-') {
|
|
i++;
|
|
has_negative_sign = true;
|
|
}
|
|
|
|
for (; i < len; i++) {
|
|
c = s [i];
|
|
|
|
if (c >= '0' && c <= '9') {
|
|
uint d = (uint) (c - '0');
|
|
|
|
if ((val > MaxValue/10) || (val == (MaxValue / 10) && d > (MaxValue % 10))){
|
|
if (!tryParse)
|
|
exc = new OverflowException (Locale.GetText ("Value is too large"));
|
|
return false;
|
|
}
|
|
val = (val * 10) + d;
|
|
digits_seen = true;
|
|
} else if (!Int32.ProcessTrailingWhitespace (tryParse, s, i, ref exc)){
|
|
return false;
|
|
}
|
|
}
|
|
if (!digits_seen) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
// -0 is legal but other negative values are not
|
|
if (has_negative_sign && (val > 0)) {
|
|
if (!tryParse)
|
|
exc = new OverflowException (
|
|
Locale.GetText ("Negative number"));
|
|
return false;
|
|
}
|
|
|
|
result = val;
|
|
return true;
|
|
}
|
|
|
|
internal static bool Parse (string s, NumberStyles style, IFormatProvider provider, bool tryParse, out uint result, out Exception exc)
|
|
{
|
|
result = 0;
|
|
exc = null;
|
|
|
|
if (s == null) {
|
|
if (!tryParse)
|
|
exc = new ArgumentNullException ("s");
|
|
return false;
|
|
}
|
|
|
|
if (s.Length == 0) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
NumberFormatInfo nfi = null;
|
|
if (provider != null) {
|
|
Type typeNFI = typeof (NumberFormatInfo);
|
|
nfi = provider.GetFormat (typeNFI) as NumberFormatInfo;
|
|
}
|
|
if (nfi == null)
|
|
nfi = Thread.CurrentThread.CurrentCulture.NumberFormat;
|
|
|
|
if (!Int32.CheckStyle (style, tryParse, ref exc))
|
|
return false;
|
|
|
|
bool AllowCurrencySymbol = (style & NumberStyles.AllowCurrencySymbol) != 0;
|
|
bool AllowHexSpecifier = (style & NumberStyles.AllowHexSpecifier) != 0;
|
|
bool AllowThousands = (style & NumberStyles.AllowThousands) != 0;
|
|
bool AllowDecimalPoint = (style & NumberStyles.AllowDecimalPoint) != 0;
|
|
bool AllowParentheses = (style & NumberStyles.AllowParentheses) != 0;
|
|
bool AllowTrailingSign = (style & NumberStyles.AllowTrailingSign) != 0;
|
|
bool AllowLeadingSign = (style & NumberStyles.AllowLeadingSign) != 0;
|
|
bool AllowTrailingWhite = (style & NumberStyles.AllowTrailingWhite) != 0;
|
|
bool AllowLeadingWhite = (style & NumberStyles.AllowLeadingWhite) != 0;
|
|
bool AllowExponent = (style & NumberStyles.AllowExponent) != 0;
|
|
|
|
int pos = 0;
|
|
|
|
if (AllowLeadingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
|
|
bool foundOpenParentheses = false;
|
|
bool negative = false;
|
|
bool foundSign = false;
|
|
bool foundCurrency = false;
|
|
|
|
// Pre-number stuff
|
|
if (AllowParentheses && s [pos] == '(') {
|
|
foundOpenParentheses = true;
|
|
foundSign = true;
|
|
negative = true; // MS always make the number negative when there parentheses
|
|
// even when NumberFormatInfo.NumberNegativePattern != 0!!!
|
|
pos++;
|
|
if (AllowLeadingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
|
|
if (s.Substring (pos, nfi.NegativeSign.Length) == nfi.NegativeSign) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
if (s.Substring (pos, nfi.PositiveSign.Length) == nfi.PositiveSign) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (AllowLeadingSign && !foundSign) {
|
|
// Sign + Currency
|
|
Int32.FindSign (ref pos, s, nfi, ref foundSign, ref negative);
|
|
if (foundSign) {
|
|
if (AllowLeadingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
if (AllowCurrencySymbol) {
|
|
Int32.FindCurrency (ref pos, s, nfi,
|
|
ref foundCurrency);
|
|
if (foundCurrency && AllowLeadingWhite &&
|
|
!Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (AllowCurrencySymbol && !foundCurrency) {
|
|
// Currency + sign
|
|
Int32.FindCurrency (ref pos, s, nfi, ref foundCurrency);
|
|
if (foundCurrency) {
|
|
if (AllowLeadingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
if (foundCurrency) {
|
|
if (!foundSign && AllowLeadingSign) {
|
|
Int32.FindSign (ref pos, s, nfi, ref foundSign,
|
|
ref negative);
|
|
if (foundSign && AllowLeadingWhite &&
|
|
!Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
uint number = 0;
|
|
int nDigits = 0;
|
|
int decimalPointPos = -1;
|
|
uint digitValue;
|
|
char hexDigit;
|
|
|
|
// Number stuff
|
|
// Just the same as Int32, but this one adds instead of substract
|
|
while (pos < s.Length) {
|
|
|
|
if (!Int32.ValidDigit (s [pos], AllowHexSpecifier)) {
|
|
if (AllowThousands &&
|
|
(Int32.FindOther (ref pos, s, nfi.NumberGroupSeparator)
|
|
|| Int32.FindOther (ref pos, s, nfi.CurrencyGroupSeparator)))
|
|
continue;
|
|
|
|
if (AllowDecimalPoint && decimalPointPos < 0 &&
|
|
(Int32.FindOther (ref pos, s, nfi.NumberDecimalSeparator)
|
|
|| Int32.FindOther (ref pos, s, nfi.CurrencyDecimalSeparator))) {
|
|
decimalPointPos = nDigits;
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
nDigits++;
|
|
|
|
if (AllowHexSpecifier) {
|
|
hexDigit = s [pos++];
|
|
if (Char.IsDigit (hexDigit))
|
|
digitValue = (uint) (hexDigit - '0');
|
|
else if (Char.IsLower (hexDigit))
|
|
digitValue = (uint) (hexDigit - 'a' + 10);
|
|
else
|
|
digitValue = (uint) (hexDigit - 'A' + 10);
|
|
|
|
if (tryParse){
|
|
ulong l = number * 16 + digitValue;
|
|
|
|
if (l > MaxValue)
|
|
return false;
|
|
number = (uint) l;
|
|
} else
|
|
number = checked (number * 16 + digitValue);
|
|
|
|
continue;
|
|
}
|
|
|
|
try {
|
|
number = checked (number * 10 + (uint) (s [pos++] - '0'));
|
|
} catch (OverflowException) {
|
|
if (!tryParse)
|
|
exc = new OverflowException (Locale.GetText ("Value too large or too small."));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Post number stuff
|
|
if (nDigits == 0) {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
int exponent = 0;
|
|
if (AllowExponent)
|
|
if (Int32.FindExponent (ref pos, s, ref exponent, tryParse, ref exc) && exc != null)
|
|
return false;
|
|
|
|
if (AllowTrailingSign && !foundSign) {
|
|
// Sign + Currency
|
|
Int32.FindSign (ref pos, s, nfi, ref foundSign, ref negative);
|
|
if (foundSign && pos < s.Length) {
|
|
if (AllowTrailingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (AllowCurrencySymbol && !foundCurrency) {
|
|
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite (ref pos, s, false, tryParse, ref exc))
|
|
return false;
|
|
|
|
// Currency + sign
|
|
Int32.FindCurrency (ref pos, s, nfi, ref foundCurrency);
|
|
if (foundCurrency && pos < s.Length) {
|
|
if (AllowTrailingWhite && !Int32.JumpOverWhite (ref pos, s, true, tryParse, ref exc))
|
|
return false;
|
|
if (!foundSign && AllowTrailingSign)
|
|
Int32.FindSign (ref pos, s, nfi, ref foundSign,
|
|
ref negative);
|
|
}
|
|
}
|
|
|
|
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite (ref pos, s, false, tryParse, ref exc))
|
|
return false;
|
|
|
|
if (foundOpenParentheses) {
|
|
if (pos >= s.Length || s [pos++] != ')') {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
if (AllowTrailingWhite && pos < s.Length && !Int32.JumpOverWhite (ref pos, s, false, tryParse, ref exc))
|
|
return false;
|
|
}
|
|
|
|
if (pos < s.Length && s [pos] != '\u0000') {
|
|
if (!tryParse)
|
|
exc = Int32.GetFormatException ();
|
|
return false;
|
|
}
|
|
|
|
// -0 is legal but other negative values are not
|
|
if (negative && (number > 0)) {
|
|
if (!tryParse)
|
|
exc = new OverflowException (
|
|
Locale.GetText ("Negative number"));
|
|
return false;
|
|
}
|
|
|
|
if (decimalPointPos >= 0)
|
|
exponent = exponent - nDigits + decimalPointPos;
|
|
|
|
if (exponent < 0) {
|
|
//
|
|
// Any non-zero values after decimal point are not allowed
|
|
//
|
|
long remainder;
|
|
number = (uint) Math.DivRem (number, (int) Math.Pow (10, -exponent), out remainder);
|
|
if (remainder != 0) {
|
|
if (!tryParse)
|
|
exc = new OverflowException ("Value too large or too small.");
|
|
return false;
|
|
}
|
|
} else if (exponent > 0) {
|
|
//
|
|
// result *= 10^exponent
|
|
//
|
|
// Reduce the risk of throwing an overflow exc
|
|
//
|
|
double res = checked (Math.Pow (10, exponent) * number);
|
|
if (res < MinValue || res > MaxValue) {
|
|
if (!tryParse)
|
|
exc = new OverflowException ("Value too large or too small.");
|
|
return false;
|
|
}
|
|
|
|
number = (uint)res;
|
|
}
|
|
|
|
result = number;
|
|
return true;
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static uint Parse (string s)
|
|
{
|
|
Exception exc;
|
|
uint res;
|
|
|
|
if (!Parse (s, false, out res, out exc))
|
|
throw exc;
|
|
|
|
return res;
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static uint Parse (string s, NumberStyles style, IFormatProvider provider)
|
|
{
|
|
Exception exc;
|
|
uint res;
|
|
|
|
if (!Parse (s, style, provider, false, out res, out exc))
|
|
throw exc;
|
|
|
|
return res;
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static uint Parse (string s, IFormatProvider provider)
|
|
{
|
|
return Parse (s, NumberStyles.Integer, provider);
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static uint Parse (string s, NumberStyles style)
|
|
{
|
|
return Parse (s, style, null);
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static bool TryParse (string s, out uint result)
|
|
{
|
|
Exception exc;
|
|
if (!Parse (s, true, out result, out exc)) {
|
|
result = 0;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
[CLSCompliant (false)]
|
|
public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out uint result)
|
|
{
|
|
Exception exc;
|
|
if (!Parse (s, style, provider, true, out result, out exc)) {
|
|
result = 0;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public override string ToString ()
|
|
{
|
|
return NumberFormatter.NumberToString (m_value, null);
|
|
}
|
|
|
|
public string ToString (IFormatProvider provider)
|
|
{
|
|
return NumberFormatter.NumberToString (m_value, provider);
|
|
}
|
|
|
|
public string ToString (string format)
|
|
{
|
|
return ToString (format, null);
|
|
}
|
|
|
|
public string ToString (string format, IFormatProvider provider)
|
|
{
|
|
return NumberFormatter.NumberToString (format, m_value, provider);
|
|
}
|
|
|
|
// =========== IConvertible Methods =========== //
|
|
public TypeCode GetTypeCode ()
|
|
{
|
|
return TypeCode.UInt32;
|
|
}
|
|
|
|
bool IConvertible.ToBoolean (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToBoolean (m_value);
|
|
}
|
|
|
|
byte IConvertible.ToByte (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToByte (m_value);
|
|
}
|
|
|
|
char IConvertible.ToChar (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToChar (m_value);
|
|
}
|
|
|
|
DateTime IConvertible.ToDateTime (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToDateTime (m_value);
|
|
}
|
|
|
|
decimal IConvertible.ToDecimal (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToDecimal (m_value);
|
|
}
|
|
|
|
double IConvertible.ToDouble (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToDouble (m_value);
|
|
}
|
|
|
|
short IConvertible.ToInt16 (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToInt16 (m_value);
|
|
}
|
|
|
|
int IConvertible.ToInt32 (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToInt32 (m_value);
|
|
}
|
|
|
|
long IConvertible.ToInt64 (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToInt64 (m_value);
|
|
}
|
|
|
|
sbyte IConvertible.ToSByte (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToSByte (m_value);
|
|
}
|
|
|
|
float IConvertible.ToSingle (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToSingle (m_value);
|
|
}
|
|
|
|
object IConvertible.ToType (Type targetType, IFormatProvider provider)
|
|
{
|
|
if (targetType == null)
|
|
throw new ArgumentNullException ("targetType");
|
|
return System.Convert.ToType (m_value, targetType, provider, false);
|
|
}
|
|
|
|
ushort IConvertible.ToUInt16 (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToUInt16 (m_value);
|
|
}
|
|
|
|
uint IConvertible.ToUInt32 (IFormatProvider provider)
|
|
{
|
|
return m_value;
|
|
}
|
|
|
|
ulong IConvertible.ToUInt64 (IFormatProvider provider)
|
|
{
|
|
return System.Convert.ToUInt64 (m_value);
|
|
}
|
|
}
|
|
}
|