class/corlib/System/UInt16.cs

   1 //
   2 // System.UInt16.cs
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //
   7 // (C) Ximian, Inc.  http://www.ximian.com
   8 // Copyright (C) 2004 Novell (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Globalization;
  31
  32 namespace System
  33 {
  34         [Serializable]
  35         [CLSCompliant (false)]
  36         [System.Runtime.InteropServices.ComVisible (true)]
  37         public struct UInt16 : IFormattable, IConvertible, IComparable, IComparable<UInt16>, IEquatable <UInt16>
  38         {
  39                 public const ushort MaxValue = 0xffff;
  40                 public const ushort MinValue = 0;
  41
  42                 internal ushort m_value;
  43
  44                 public int CompareTo (object value)
  45                 {
  46                         if (value == null)
  47                                 return 1;
  48
  49                         if(!(value is System.UInt16))
  50                                 throw new ArgumentException (Locale.GetText ("Value is not a System.UInt16."));
  51
  52                         return this.m_value - ((ushort) value);
  53                 }
  54
  55                 public override bool Equals (object obj)
  56                 {
  57                         if (!(obj is System.UInt16))
  58                                 return false;
  59
  60                         return ((ushort) obj) == m_value;
  61                 }
  62
  63                 public override int GetHashCode ()
  64                 {
  65                         return m_value;
  66                 }
  67
  68                 public int CompareTo (ushort value)
  69                 {
  70                         return m_value - value;
  71                 }
  72
  73                 public bool Equals (ushort obj)
  74                 {
  75                         return obj == m_value;
  76                 }
  77
  78                 [CLSCompliant (false)]
  79                 public static ushort Parse (string s, IFormatProvider provider)
  80                 {
  81                         return Parse (s, NumberStyles.Integer, provider);
  82                 }
  83
  84                 [CLSCompliant (false)]
  85                 public static ushort Parse (string s, NumberStyles style)
  86                 {
  87                         return Parse (s, style, null);
  88                 }
  89
  90                 [CLSCompliant (false)]
  91                 public static ushort Parse (string s, NumberStyles style, IFormatProvider provider)
  92                 {
  93                         uint tmpResult = UInt32.Parse (s, style, provider);
  94                         if (tmpResult > UInt16.MaxValue)
  95                                 throw new OverflowException (Locale.GetText ("Value too large."));
  96
  97                         return (ushort) tmpResult;
  98                 }
  99
 100                 [CLSCompliant(false)]
 101                 public static ushort Parse (string s)
 102                 {
 103                         return Parse (s, NumberStyles.Number, null);
 104                 }
 105
 106                 [CLSCompliant(false)]
 107                 public static bool TryParse (string s, out ushort result)
 108                 {
 109                         return TryParse (s, NumberStyles.Integer, null, out result);
 110                 }
 111
 112                 [CLSCompliant(false)]
 113                 public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out ushort result)
 114                 {
 115                         uint tmpResult;
 116                         result = 0;
 117
 118                         if (!UInt32.TryParse (s, style, provider, out tmpResult))
 119                                 return false;
 120
 121                         if (tmpResult > UInt16.MaxValue)
 122                                 return false;
 123
 124                         result = (ushort)tmpResult;
 125                         return true;
 126                 }
 127
 128                 public override string ToString ()
 129                 {
 130                         return NumberFormatter.NumberToString (m_value, null);
 131                 }
 132
 133                 public string ToString (IFormatProvider provider)
 134                 {
 135                         return NumberFormatter.NumberToString (m_value, provider);
 136                 }
 137
 138                 public string ToString (string format)
 139                 {
 140                         return ToString (format, null);
 141                 }
 142
 143                 public string ToString (string format, IFormatProvider provider)
 144                 {
 145                         return NumberFormatter.NumberToString (format, m_value, provider);
 146                 }
 147
 148                 // =========== IConvertible Methods =========== //
 149                 public TypeCode GetTypeCode ()
 150                 {
 151                         return TypeCode.UInt16;
 152                 }
 153
 154                 bool IConvertible.ToBoolean (IFormatProvider provider)
 155                 {
 156                         return System.Convert.ToBoolean (m_value);
 157                 }
 158
 159                 byte IConvertible.ToByte (IFormatProvider provider)
 160                 {
 161                         return System.Convert.ToByte (m_value);
 162                 }
 163
 164                 char IConvertible.ToChar (IFormatProvider provider)
 165                 {
 166                         return System.Convert.ToChar (m_value);
 167                 }
 168
 169                 DateTime IConvertible.ToDateTime (IFormatProvider provider)
 170                 {
 171                         return System.Convert.ToDateTime (m_value);
 172                 }
 173
 174                 decimal IConvertible.ToDecimal (IFormatProvider provider)
 175                 {
 176                         return System.Convert.ToDecimal (m_value);
 177                 }
 178
 179                 double IConvertible.ToDouble (IFormatProvider provider)
 180                 {
 181                         return System.Convert.ToDouble (m_value);
 182                 }
 183
 184                 short IConvertible.ToInt16 (IFormatProvider provider)
 185                 {
 186                         return System.Convert.ToInt16 (m_value);
 187                 }
 188
 189                 int IConvertible.ToInt32 (IFormatProvider provider)
 190                 {
 191                         return System.Convert.ToInt32 (m_value);
 192                 }
 193
 194                 long IConvertible.ToInt64 (IFormatProvider provider)
 195                 {
 196                         return System.Convert.ToInt64 (m_value);
 197                 }
 198
 199                 sbyte IConvertible.ToSByte (IFormatProvider provider)
 200                 {
 201                         return System.Convert.ToSByte (m_value);
 202                 }
 203
 204                 float IConvertible.ToSingle (IFormatProvider provider)
 205                 {
 206                         return System.Convert.ToSingle (m_value);
 207                 }
 208
 209                 object IConvertible.ToType (Type targetType, IFormatProvider provider)
 210                 {
 211                         if (targetType == null)
 212                                 throw new ArgumentNullException ("targetType");
 213
 214                         return System.Convert.ToType (m_value, targetType, provider, false);
 215                 }
 216
 217                 ushort IConvertible.ToUInt16 (IFormatProvider provider)
 218                 {
 219                         return m_value;
 220                 }
 221                 uint IConvertible.ToUInt32 (IFormatProvider provider)
 222                 {
 223                         return System.Convert.ToUInt32 (m_value);
 224                 }
 225
 226                 ulong IConvertible.ToUInt64 (IFormatProvider provider)
 227                 {
 228                         return System.Convert.ToUInt64 (m_value);
 229                 }
 230         }
 231 }