move FrameworkName from corlib to System
[mcs.git] / class / corlib / System / SByte.cs
blob199a6e07498f8c8937039fde3c13e4bedccb1dfc
1 //
2 // System.SByte.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.
30 using System.Globalization;
32 namespace System
34 [CLSCompliant(false)]
35 [Serializable]
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)
46 if (obj == null)
47 return 1;
49 if (!(obj is System.SByte))
50 throw new ArgumentException (Locale.GetText ("Value is not a System.SByte."));
52 sbyte xv = (sbyte) obj;
53 if (m_value == xv)
54 return 0;
55 if (m_value > xv)
56 return 1;
57 else
58 return -1;
61 public override bool Equals (object obj)
63 if (!(obj is System.SByte))
64 return false;
66 return ((sbyte) obj) == m_value;
69 public override int GetHashCode ()
71 return m_value;
74 public int CompareTo (sbyte value)
76 if (m_value == value)
77 return 0;
78 if (m_value > value)
79 return 1;
80 else
81 return -1;
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)
91 int ival = 0;
92 int len;
93 int i;
94 bool neg = false;
95 bool digits_seen = false;
97 result = 0;
98 exc = null;
100 if (s == null) {
101 if (!tryParse)
102 exc = new ArgumentNullException ("s");
103 return false;
106 len = s.Length;
108 char c;
109 for (i = 0; i < len; i++) {
110 c = s [i];
111 if (!Char.IsWhiteSpace (c))
112 break;
115 if (i == len) {
116 if (!tryParse)
117 exc = Int32.GetFormatException ();
118 return false;
121 c = s [i];
122 if (c == '+')
123 i++;
124 else if (c == '-') {
125 neg = true;
126 i++;
129 for (; i < len; i++) {
130 c = s [i];
132 if (c >= '0' && c <= '9') {
133 if (tryParse){
134 int intval = ival * 10 - (int) (c - '0');
136 if (intval < MinValue)
137 return false;
138 ival = (sbyte) intval;
139 } else
140 ival = checked (ival * 10 - (int) (c - '0'));
141 digits_seen = true;
142 } else {
143 if (Char.IsWhiteSpace (c)) {
144 for (i++; i < len; i++) {
145 if (!Char.IsWhiteSpace (s [i])) {
146 if (!tryParse)
147 exc = Int32.GetFormatException ();
148 return false;
151 break;
152 } else {
153 if (!tryParse)
154 exc = Int32.GetFormatException ();
155 return false;
159 if (!digits_seen) {
160 if (!tryParse)
161 exc = Int32.GetFormatException ();
162 return false;
165 ival = neg ? ival : -ival;
166 if (ival < SByte.MinValue || ival > SByte.MaxValue) {
167 if (!tryParse)
168 exc = new OverflowException ();
169 return false;
172 result = (sbyte)ival;
173 return true;
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 (tmpResult > SByte.MaxValue || tmpResult < SByte.MinValue)
193 throw new OverflowException (Locale.GetText ("Value too large or too small."));
195 return (sbyte) tmpResult;
198 [CLSCompliant(false)]
199 public static sbyte Parse (string s)
201 Exception exc;
202 sbyte res;
204 if (!Parse (s, false, out res, out exc))
205 throw exc;
207 return res;
210 [CLSCompliant(false)]
211 public static bool TryParse (string s, out sbyte result)
213 Exception exc;
214 if (!Parse (s, true, out result, out exc)) {
215 result = 0;
216 return false;
219 return true;
222 [CLSCompliant(false)]
223 public static bool TryParse (string s, NumberStyles style, IFormatProvider provider, out sbyte result)
225 int tmpResult;
226 result = 0;
228 if (!Int32.TryParse (s, style, provider, out tmpResult))
229 return false;
230 if (tmpResult > SByte.MaxValue || tmpResult < SByte.MinValue)
231 return false;
233 result = (sbyte)tmpResult;
234 return true;
237 public override string ToString ()
239 return NumberFormatter.NumberToString (m_value, null);
242 public string ToString (IFormatProvider provider)
244 return NumberFormatter.NumberToString (m_value, provider);
247 public string ToString (string format)
249 return ToString (format, null);
252 public string ToString (string format, IFormatProvider provider)
254 return NumberFormatter.NumberToString (format, m_value, provider);
257 // =========== ICovnertible Methods =========== //
258 public TypeCode GetTypeCode ()
260 return TypeCode.SByte;
263 bool IConvertible.ToBoolean (IFormatProvider provider)
265 return System.Convert.ToBoolean (m_value);
268 byte IConvertible.ToByte (IFormatProvider provider)
270 return System.Convert.ToByte (m_value);
273 char IConvertible.ToChar (IFormatProvider provider)
275 return System.Convert.ToChar (m_value);
278 DateTime IConvertible.ToDateTime (IFormatProvider provider)
280 return System.Convert.ToDateTime (m_value);
283 decimal IConvertible.ToDecimal (IFormatProvider provider)
285 return System.Convert.ToDecimal (m_value);
288 double IConvertible.ToDouble (IFormatProvider provider)
290 return System.Convert.ToDouble (m_value);
293 short IConvertible.ToInt16 (IFormatProvider provider)
295 return System.Convert.ToInt16 (m_value);
298 int IConvertible.ToInt32 (IFormatProvider provider)
300 return System.Convert.ToInt32 (m_value);
303 long IConvertible.ToInt64 (IFormatProvider provider)
305 return System.Convert.ToInt64 (m_value);
308 sbyte IConvertible.ToSByte (IFormatProvider provider)
310 return m_value;
313 float IConvertible.ToSingle (IFormatProvider provider)
315 return System.Convert.ToSingle (m_value);
318 object IConvertible.ToType (Type targetType, IFormatProvider provider)
320 if (targetType == null)
321 throw new ArgumentNullException ("targetType");
322 return System.Convert.ToType (m_value, targetType, provider, false);
325 ushort IConvertible.ToUInt16 (IFormatProvider provider)
327 return System.Convert.ToUInt16 (m_value);
330 uint IConvertible.ToUInt32 (IFormatProvider provider)
332 return System.Convert.ToUInt32 (m_value);
335 ulong IConvertible.ToUInt64 (IFormatProvider provider)
337 return System.Convert.ToUInt64 (m_value);