5 // Miguel de Icaza (miguel@ximian.com)
7 // (C) Ximian, Inc. http://www.ximian.com
8 // Copyright (C) 2004 Novell (http://www.novell.com)
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:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
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.
30 using System.Globalization;
35 [CLSCompliant (false)]
36 public struct UInt16 : IFormattable, IConvertible,
38 IComparable, IComparable<UInt16>
43 public const ushort MaxValue = 0xffff;
44 public const ushort MinValue = 0;
46 internal ushort m_value;
48 public int CompareTo (object value)
53 if(!(value is System.UInt16))
54 throw new ArgumentException (Locale.GetText ("Value is not a System.UInt16."));
56 return this.m_value - ((ushort) value);
59 public override bool Equals (object obj)
61 if (!(obj is System.UInt16))
64 return ((ushort) obj) == m_value;
67 public override int GetHashCode ()
73 public int CompareTo (ushort value)
83 public bool Equals (ushort value)
85 return value == m_value;
89 internal static bool Parse (string s, bool tryParse, out ushort result)
94 bool digits_seen = false;
95 bool has_negative_sign = false;
103 throw new ArgumentNullException ("s");
108 for (i = 0; i < len; i++) {
110 if (!Char.IsWhiteSpace (c))
118 throw new FormatException ();
125 has_negative_sign = true;
128 for (; i < len; i++) {
131 if (c >= '0' && c <= '9') {
132 ushort d = (ushort) (c - '0');
134 val = checked ((ushort) (val * 10 + d));
138 if (Char.IsWhiteSpace (c)) {
139 for (i++; i < len; i++) {
140 if (!Char.IsWhiteSpace (s [i]))
144 throw new FormatException ();
152 throw new FormatException ();
159 throw new FormatException ();
161 // -0 is legal but other negative values are not
162 if (has_negative_sign && (val > 0)) {
166 throw new OverflowException (
167 Locale.GetText ("Negative number"));
174 [CLSCompliant (false)]
175 public static ushort Parse (string s, IFormatProvider provider)
177 return Parse (s, NumberStyles.Integer, provider);
180 [CLSCompliant (false)]
181 public static ushort Parse (string s, NumberStyles style)
183 return Parse (s, style, null);
186 [CLSCompliant (false)]
187 public static ushort Parse (string s, NumberStyles style, IFormatProvider provider)
189 uint tmpResult = UInt32.Parse (s, style, provider);
190 if (tmpResult > UInt16.MaxValue || tmpResult < UInt16.MinValue)
191 throw new OverflowException (Locale.GetText ("Value too large or too small."));
193 return (ushort) tmpResult;
196 [CLSCompliant(false)]
197 public static ushort Parse (string s) {
200 Parse (s, false, out res);
206 [CLSCompliant(false)]
207 public static bool TryParse (string s, out ushort result) {
209 return Parse (s, true, out result);
217 [CLSCompliant(false)]
218 public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out ushort result) {
223 if (!UInt32.TryParse (s, style, provider, out tmpResult))
225 if (tmpResult > UInt16.MaxValue || tmpResult < UInt16.MinValue)
227 result = (ushort)tmpResult;
237 public override string ToString ()
239 return NumberFormatter.FormatGeneral (new NumberFormatter.NumberStore (m_value));
242 public string ToString (IFormatProvider provider)
244 return NumberFormatter.FormatGeneral (new NumberFormatter.NumberStore (m_value), provider);
247 public string ToString (string format)
249 return ToString (format, null);
252 public string ToString (string format, IFormatProvider provider)
254 NumberFormatInfo nfi = NumberFormatInfo.GetInstance (provider);
255 return NumberFormatter.NumberToString (format, m_value, nfi);
258 // =========== IConvertible Methods =========== //
259 public TypeCode GetTypeCode ()
261 return TypeCode.UInt16;
264 bool IConvertible.ToBoolean (IFormatProvider provider)
266 return System.Convert.ToBoolean (m_value);
269 byte IConvertible.ToByte (IFormatProvider provider)
271 return System.Convert.ToByte (m_value);
274 char IConvertible.ToChar (IFormatProvider provider)
276 return System.Convert.ToChar (m_value);
279 DateTime IConvertible.ToDateTime (IFormatProvider provider)
281 return System.Convert.ToDateTime (m_value);
284 decimal IConvertible.ToDecimal (IFormatProvider provider)
286 return System.Convert.ToDecimal (m_value);
289 double IConvertible.ToDouble (IFormatProvider provider)
291 return System.Convert.ToDouble (m_value);
294 short IConvertible.ToInt16 (IFormatProvider provider)
296 return System.Convert.ToInt16 (m_value);
299 int IConvertible.ToInt32 (IFormatProvider provider)
301 return System.Convert.ToInt32 (m_value);
304 long IConvertible.ToInt64 (IFormatProvider provider)
306 return System.Convert.ToInt64 (m_value);
309 sbyte IConvertible.ToSByte (IFormatProvider provider)
311 return System.Convert.ToSByte (m_value);
314 float IConvertible.ToSingle (IFormatProvider provider)
316 return System.Convert.ToSingle (m_value);
319 object IConvertible.ToType (Type conversionType, IFormatProvider provider)
321 return System.Convert.ToType (m_value, conversionType, provider);
324 ushort IConvertible.ToUInt16 (IFormatProvider provider)
329 uint IConvertible.ToUInt32 (IFormatProvider provider)
331 return System.Convert.ToUInt32 (m_value);
334 ulong IConvertible.ToUInt64 (IFormatProvider provider)
336 return System.Convert.ToUInt64 (m_value);