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;
37 [System.Runtime.InteropServices.ComVisible (true)]
39 public struct SByte : IFormattable, IConvertible, IComparable
41 , IComparable<SByte>, IEquatable <SByte>
44 public const sbyte MinValue = -128;
45 public const sbyte MaxValue = 127;
47 internal sbyte m_value;
49 public int CompareTo (object v)
54 if (!(v is System.SByte))
55 throw new ArgumentException (Locale.GetText ("Value is not a System.SByte."));
66 public override bool Equals (object o)
68 if (!(o is System.SByte))
71 return ((sbyte) o) == m_value;
74 public override int GetHashCode ()
80 public int CompareTo (sbyte value)
90 public bool Equals (sbyte value)
92 return value == m_value;
96 internal static bool Parse (string s, bool tryParse, out sbyte result, out Exception exc)
102 bool digits_seen = false;
109 exc = new ArgumentNullException ("s");
116 for (i = 0; i < len; i++) {
118 if (!Char.IsWhiteSpace (c))
124 exc = Int32.GetFormatException ();
136 for (; i < len; i++) {
139 if (c >= '0' && c <= '9') {
141 int intval = ival * 10 - (int) (c - '0');
143 if (intval < MinValue)
145 ival = (sbyte) intval;
147 ival = checked (ival * 10 - (int) (c - '0'));
150 if (Char.IsWhiteSpace (c)) {
151 for (i++; i < len; i++) {
152 if (!Char.IsWhiteSpace (s [i])) {
154 exc = Int32.GetFormatException ();
161 exc = Int32.GetFormatException ();
168 exc = Int32.GetFormatException ();
172 ival = neg ? ival : -ival;
173 if (ival < SByte.MinValue || ival > SByte.MaxValue) {
175 exc = new OverflowException ();
179 result = (sbyte)ival;
183 [CLSCompliant(false)]
184 public static sbyte Parse (string s, IFormatProvider provider)
186 return Parse (s, NumberStyles.Integer, provider);
189 [CLSCompliant(false)]
190 public static sbyte Parse (string s, NumberStyles style)
192 return Parse (s, style, null);
195 [CLSCompliant(false)]
196 public static sbyte Parse (string s, NumberStyles style, IFormatProvider provider)
198 int tmpResult = Int32.Parse (s, style, provider);
199 if (tmpResult > SByte.MaxValue || tmpResult < SByte.MinValue)
200 throw new OverflowException (Locale.GetText ("Value too large or too small."));
202 return (sbyte) tmpResult;
205 [CLSCompliant(false)]
206 public static sbyte Parse (string s)
211 if (!Parse (s, false, out res, out exc))
218 [CLSCompliant(false)]
219 public static bool TryParse (string s, out sbyte result)
222 if (!Parse (s, true, out result, out exc)) {
230 [CLSCompliant(false)]
231 public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out sbyte result)
236 if (!Int32.TryParse (s, style, provider, out tmpResult))
238 if (tmpResult > SByte.MaxValue || tmpResult < SByte.MinValue)
241 result = (sbyte)tmpResult;
246 public override string ToString ()
248 return new NumberFormatter(null, m_value).FormatDecimal(-1, null);
251 public string ToString (IFormatProvider provider)
253 NumberFormatInfo nfi = NumberFormatInfo.GetInstance (provider);
254 return new NumberFormatter(null, m_value).FormatDecimal(-1, nfi);
257 public string ToString (string format)
259 return ToString (format, null);
262 public string ToString (string format, IFormatProvider provider)
264 NumberFormatInfo nfi = NumberFormatInfo.GetInstance (provider);
265 return NumberFormatter.NumberToString (format, m_value, nfi);
268 // =========== ICovnertible Methods =========== //
269 public TypeCode GetTypeCode ()
271 return TypeCode.SByte;
274 bool IConvertible.ToBoolean (IFormatProvider provider)
276 return System.Convert.ToBoolean (m_value);
279 byte IConvertible.ToByte (IFormatProvider provider)
281 return System.Convert.ToByte (m_value);
284 char IConvertible.ToChar (IFormatProvider provider)
286 return System.Convert.ToChar (m_value);
289 DateTime IConvertible.ToDateTime (IFormatProvider provider)
291 return System.Convert.ToDateTime (m_value);
294 decimal IConvertible.ToDecimal (IFormatProvider provider)
296 return System.Convert.ToDecimal (m_value);
299 double IConvertible.ToDouble (IFormatProvider provider)
301 return System.Convert.ToDouble (m_value);
304 short IConvertible.ToInt16 (IFormatProvider provider)
306 return System.Convert.ToInt16 (m_value);
309 int IConvertible.ToInt32 (IFormatProvider provider)
311 return System.Convert.ToInt32 (m_value);
314 long IConvertible.ToInt64 (IFormatProvider provider)
316 return System.Convert.ToInt64 (m_value);
319 sbyte IConvertible.ToSByte (IFormatProvider provider)
324 float IConvertible.ToSingle (IFormatProvider provider)
326 return System.Convert.ToSingle (m_value);
329 object IConvertible.ToType (Type conversionType, IFormatProvider provider)
331 return System.Convert.ToType (m_value, conversionType, provider);
334 ushort IConvertible.ToUInt16 (IFormatProvider provider)
336 return System.Convert.ToUInt16 (m_value);
339 uint IConvertible.ToUInt32 (IFormatProvider provider)
341 return System.Convert.ToUInt32 (m_value);
344 ulong IConvertible.ToUInt64 (IFormatProvider provider)
346 return System.Convert.ToUInt64 (m_value);