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;
36 [System.Runtime.InteropServices.ComVisible (true)]
37 public struct SByte : IFormattable, IConvertible, IComparable, IComparable<SByte>, IEquatable <SByte>
39 public const sbyte MinValue = -128;
40 public const sbyte MaxValue = 127;
42 internal sbyte m_value;
44 public int CompareTo (object obj)
49 if (!(obj is System.SByte))
50 throw new ArgumentException (Locale.GetText ("Value is not a System.SByte."));
52 sbyte xv = (sbyte) obj;
61 public override bool Equals (object obj)
63 if (!(obj is System.SByte))
66 return ((sbyte) obj) == m_value;
69 public override int GetHashCode ()
74 public int CompareTo (sbyte value)
84 public bool Equals (sbyte obj)
86 return obj == m_value;
89 internal static bool Parse (string s, bool tryParse, out sbyte result, out Exception exc)
95 bool digits_seen = false;
102 exc = new ArgumentNullException ("s");
109 for (i = 0; i < len; i++) {
111 if (!Char.IsWhiteSpace (c))
117 exc = Int32.GetFormatException ();
129 for (; i < len; i++) {
132 if (c >= '0' && c <= '9') {
134 int intval = ival * 10 - (int) (c - '0');
136 if (intval < MinValue)
138 ival = (sbyte) intval;
140 ival = checked (ival * 10 - (int) (c - '0'));
143 if (Char.IsWhiteSpace (c)) {
144 for (i++; i < len; i++) {
145 if (!Char.IsWhiteSpace (s [i])) {
147 exc = Int32.GetFormatException ();
154 exc = Int32.GetFormatException ();
161 exc = Int32.GetFormatException ();
165 ival = neg ? ival : -ival;
166 if (ival < SByte.MinValue || ival > SByte.MaxValue) {
168 exc = new OverflowException ();
172 result = (sbyte)ival;
176 [CLSCompliant(false)]
177 public static sbyte Parse (string s, IFormatProvider provider)
179 return Parse (s, NumberStyles.Integer, provider);
182 [CLSCompliant(false)]
183 public static sbyte Parse (string s, NumberStyles style)
185 return Parse (s, style, null);
188 [CLSCompliant(false)]
189 public static sbyte Parse (string s, NumberStyles style, IFormatProvider provider)
191 int tmpResult = Int32.Parse (s, style, provider);
192 if ((style & NumberStyles.AllowHexSpecifier) != 0) {
193 if (tmpResult >= 0 && tmpResult <= byte.MaxValue)
194 return (sbyte) tmpResult;
195 } else if (tmpResult <= MaxValue && tmpResult >= MinValue) {
196 return (sbyte) tmpResult;
199 throw new OverflowException (Locale.GetText ("Value too large or too small."));
202 [CLSCompliant(false)]
203 public static sbyte Parse (string s)
208 if (!Parse (s, false, out res, out exc))
214 [CLSCompliant(false)]
215 public static bool TryParse (string s, out sbyte result)
218 if (!Parse (s, true, out result, out exc)) {
226 [CLSCompliant(false)]
227 public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out sbyte result)
232 if (!Int32.TryParse (s, style, provider, out tmpResult))
234 if (tmpResult > SByte.MaxValue || tmpResult < SByte.MinValue)
237 result = (sbyte)tmpResult;
241 public override string ToString ()
243 return NumberFormatter.NumberToString (m_value, null);
246 public string ToString (IFormatProvider provider)
248 return NumberFormatter.NumberToString (m_value, provider);
251 public string ToString (string format)
253 return ToString (format, null);
256 public string ToString (string format, IFormatProvider provider)
258 return NumberFormatter.NumberToString (format, m_value, provider);
261 // =========== ICovnertible Methods =========== //
262 public TypeCode GetTypeCode ()
264 return TypeCode.SByte;
267 bool IConvertible.ToBoolean (IFormatProvider provider)
269 return System.Convert.ToBoolean (m_value);
272 byte IConvertible.ToByte (IFormatProvider provider)
274 return System.Convert.ToByte (m_value);
277 char IConvertible.ToChar (IFormatProvider provider)
279 return System.Convert.ToChar (m_value);
282 DateTime IConvertible.ToDateTime (IFormatProvider provider)
284 return System.Convert.ToDateTime (m_value);
287 decimal IConvertible.ToDecimal (IFormatProvider provider)
289 return System.Convert.ToDecimal (m_value);
292 double IConvertible.ToDouble (IFormatProvider provider)
294 return System.Convert.ToDouble (m_value);
297 short IConvertible.ToInt16 (IFormatProvider provider)
299 return System.Convert.ToInt16 (m_value);
302 int IConvertible.ToInt32 (IFormatProvider provider)
304 return System.Convert.ToInt32 (m_value);
307 long IConvertible.ToInt64 (IFormatProvider provider)
309 return System.Convert.ToInt64 (m_value);
312 sbyte IConvertible.ToSByte (IFormatProvider provider)
317 float IConvertible.ToSingle (IFormatProvider provider)
319 return System.Convert.ToSingle (m_value);
322 object IConvertible.ToType (Type targetType, IFormatProvider provider)
324 if (targetType == null)
325 throw new ArgumentNullException ("targetType");
326 return System.Convert.ToType (m_value, targetType, provider, false);
329 ushort IConvertible.ToUInt16 (IFormatProvider provider)
331 return System.Convert.ToUInt16 (m_value);
334 uint IConvertible.ToUInt32 (IFormatProvider provider)
336 return System.Convert.ToUInt32 (m_value);
339 ulong IConvertible.ToUInt64 (IFormatProvider provider)
341 return System.Convert.ToUInt64 (m_value);