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Viewing changes to contrib/ICSharpCode.NRefactory/Utils/CSharpPrimitiveCast.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
ImportĀ upstreamĀ versionĀ 4.0.5+dfsg

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contrib/ICSharpCode.NRefactory/Utils/CSharpPrimitiveCast.cs
1
 
ļ»æ// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
2
 
// 
3
 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
4
 
// software and associated documentation files (the "Software"), to deal in the Software
5
 
// without restriction, including without limitation the rights to use, copy, modify, merge,
6
 
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
7
 
// to whom the Software is furnished to do so, subject to the following conditions:
8
 
// 
9
 
// The above copyright notice and this permission notice shall be included in all copies or
10
 
// substantial portions of the Software.
11
 
// 
12
 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
13
 
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14
 
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
15
 
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
16
 
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
17
 
// DEALINGS IN THE SOFTWARE.
18
 
 
19
 
using System;
20
 
 
21
 
namespace ICSharpCode.NRefactory.Utils
22
 
{
23
 
        /// <summary>
24
 
        /// Static helper method for converting between primitive types.
25
 
        /// </summary>
26
 
        public static class CSharpPrimitiveCast
27
 
        {
28
 
                /// <summary>
29
 
                /// Performs a conversion between primitive types.
30
 
                /// Unfortunately we cannot use Convert.ChangeType because it has different semantics
31
 
                /// (e.g. rounding behavior for floats, overflow, etc.), so we write down every possible primitive C# cast
32
 
                /// and let the compiler figure out the exact semantics.
33
 
                /// And we have to do everything twice, once in a checked-block, once in an unchecked-block.
34
 
                /// </summary>
35
 
                public static object Cast(TypeCode targetType, object input, bool checkForOverflow)
36
 
                {
37
 
                        if (input == null)
38
 
                                return null;
39
 
                        if (checkForOverflow)
40
 
                                return CSharpPrimitiveCastChecked(targetType, input);
41
 
                        else
42
 
                                return CSharpPrimitiveCastUnchecked(targetType, input);
43
 
                }
44
 
                
45
 
                static object CSharpPrimitiveCastChecked(TypeCode targetType, object input)
46
 
                {
47
 
                        checked {
48
 
                                TypeCode sourceType = Type.GetTypeCode(input.GetType());
49
 
                                if (sourceType == targetType)
50
 
                                        return input;
51
 
                                switch (targetType) {
52
 
                                        case TypeCode.Char:
53
 
                                                switch (sourceType) {
54
 
                                                                case TypeCode.SByte:   return (char)(sbyte)input;
55
 
                                                                case TypeCode.Byte:    return (char)(byte)input;
56
 
                                                                case TypeCode.Int16:   return (char)(short)input;
57
 
                                                                case TypeCode.UInt16:  return (char)(ushort)input;
58
 
                                                                case TypeCode.Int32:   return (char)(int)input;
59
 
                                                                case TypeCode.UInt32:  return (char)(uint)input;
60
 
                                                                case TypeCode.Int64:   return (char)(long)input;
61
 
                                                                case TypeCode.UInt64:  return (char)(ulong)input;
62
 
                                                                case TypeCode.Single:  return (char)(float)input;
63
 
                                                                case TypeCode.Double:  return (char)(double)input;
64
 
                                                                case TypeCode.Decimal: return (char)(decimal)input;
65
 
                                                }
66
 
                                                break;
67
 
                                        case TypeCode.SByte:
68
 
                                                switch (sourceType) {
69
 
                                                                case TypeCode.Char:    return (sbyte)(char)input;
70
 
                                                                case TypeCode.Byte:    return (sbyte)(byte)input;
71
 
                                                                case TypeCode.Int16:   return (sbyte)(short)input;
72
 
                                                                case TypeCode.UInt16:  return (sbyte)(ushort)input;
73
 
                                                                case TypeCode.Int32:   return (sbyte)(int)input;
74
 
                                                                case TypeCode.UInt32:  return (sbyte)(uint)input;
75
 
                                                                case TypeCode.Int64:   return (sbyte)(long)input;
76
 
                                                                case TypeCode.UInt64:  return (sbyte)(ulong)input;
77
 
                                                                case TypeCode.Single:  return (sbyte)(float)input;
78
 
                                                                case TypeCode.Double:  return (sbyte)(double)input;
79
 
                                                                case TypeCode.Decimal: return (sbyte)(decimal)input;
80
 
                                                }
81
 
                                                break;
82
 
                                        case TypeCode.Byte:
83
 
                                                switch (sourceType) {
84
 
                                                                case TypeCode.Char:    return (byte)(char)input;
85
 
                                                                case TypeCode.SByte:   return (byte)(sbyte)input;
86
 
                                                                case TypeCode.Int16:   return (byte)(short)input;
87
 
                                                                case TypeCode.UInt16:  return (byte)(ushort)input;
88
 
                                                                case TypeCode.Int32:   return (byte)(int)input;
89
 
                                                                case TypeCode.UInt32:  return (byte)(uint)input;
90
 
                                                                case TypeCode.Int64:   return (byte)(long)input;
91
 
                                                                case TypeCode.UInt64:  return (byte)(ulong)input;
92
 
                                                                case TypeCode.Single:  return (byte)(float)input;
93
 
                                                                case TypeCode.Double:  return (byte)(double)input;
94
 
                                                                case TypeCode.Decimal: return (byte)(decimal)input;
95
 
                                                }
96
 
                                                break;
97
 
                                        case TypeCode.Int16:
98
 
                                                switch (sourceType) {
99
 
                                                                case TypeCode.Char:    return (short)(char)input;
100
 
                                                                case TypeCode.SByte:   return (short)(sbyte)input;
101
 
                                                                case TypeCode.Byte:    return (short)(byte)input;
102
 
                                                                case TypeCode.UInt16:  return (short)(ushort)input;
103
 
                                                                case TypeCode.Int32:   return (short)(int)input;
104
 
                                                                case TypeCode.UInt32:  return (short)(uint)input;
105
 
                                                                case TypeCode.Int64:   return (short)(long)input;
106
 
                                                                case TypeCode.UInt64:  return (short)(ulong)input;
107
 
                                                                case TypeCode.Single:  return (short)(float)input;
108
 
                                                                case TypeCode.Double:  return (short)(double)input;
109
 
                                                                case TypeCode.Decimal: return (short)(decimal)input;
110
 
                                                }
111
 
                                                break;
112
 
                                        case TypeCode.UInt16:
113
 
                                                switch (sourceType) {
114
 
                                                                case TypeCode.Char:    return (ushort)(char)input;
115
 
                                                                case TypeCode.SByte:   return (ushort)(sbyte)input;
116
 
                                                                case TypeCode.Byte:    return (ushort)(byte)input;
117
 
                                                                case TypeCode.Int16:   return (ushort)(short)input;
118
 
                                                                case TypeCode.Int32:   return (ushort)(int)input;
119
 
                                                                case TypeCode.UInt32:  return (ushort)(uint)input;
120
 
                                                                case TypeCode.Int64:   return (ushort)(long)input;
121
 
                                                                case TypeCode.UInt64:  return (ushort)(ulong)input;
122
 
                                                                case TypeCode.Single:  return (ushort)(float)input;
123
 
                                                                case TypeCode.Double:  return (ushort)(double)input;
124
 
                                                                case TypeCode.Decimal: return (ushort)(decimal)input;
125
 
                                                }
126
 
                                                break;
127
 
                                        case TypeCode.Int32:
128
 
                                                switch (sourceType) {
129
 
                                                                case TypeCode.Char:    return (int)(char)input;
130
 
                                                                case TypeCode.SByte:   return (int)(sbyte)input;
131
 
                                                                case TypeCode.Byte:    return (int)(byte)input;
132
 
                                                                case TypeCode.Int16:   return (int)(short)input;
133
 
                                                                case TypeCode.UInt16:  return (int)(ushort)input;
134
 
                                                                case TypeCode.UInt32:  return (int)(uint)input;
135
 
                                                                case TypeCode.Int64:   return (int)(long)input;
136
 
                                                                case TypeCode.UInt64:  return (int)(ulong)input;
137
 
                                                                case TypeCode.Single:  return (int)(float)input;
138
 
                                                                case TypeCode.Double:  return (int)(double)input;
139
 
                                                                case TypeCode.Decimal: return (int)(decimal)input;
140
 
                                                }
141
 
                                                break;
142
 
                                        case TypeCode.UInt32:
143
 
                                                switch (sourceType) {
144
 
                                                                case TypeCode.Char:    return (uint)(char)input;
145
 
                                                                case TypeCode.SByte:   return (uint)(sbyte)input;
146
 
                                                                case TypeCode.Byte:    return (uint)(byte)input;
147
 
                                                                case TypeCode.Int16:   return (uint)(short)input;
148
 
                                                                case TypeCode.UInt16:  return (uint)(ushort)input;
149
 
                                                                case TypeCode.Int32:   return (uint)(int)input;
150
 
                                                                case TypeCode.Int64:   return (uint)(long)input;
151
 
                                                                case TypeCode.UInt64:  return (uint)(ulong)input;
152
 
                                                                case TypeCode.Single:  return (uint)(float)input;
153
 
                                                                case TypeCode.Double:  return (uint)(double)input;
154
 
                                                                case TypeCode.Decimal: return (uint)(decimal)input;
155
 
                                                }
156
 
                                                break;
157
 
                                        case TypeCode.Int64:
158
 
                                                switch (sourceType) {
159
 
                                                                case TypeCode.Char:    return (long)(char)input;
160
 
                                                                case TypeCode.SByte:   return (long)(sbyte)input;
161
 
                                                                case TypeCode.Byte:    return (long)(byte)input;
162
 
                                                                case TypeCode.Int16:   return (long)(short)input;
163
 
                                                                case TypeCode.UInt16:  return (long)(ushort)input;
164
 
                                                                case TypeCode.Int32:   return (long)(int)input;
165
 
                                                                case TypeCode.UInt32:  return (long)(uint)input;
166
 
                                                                case TypeCode.UInt64:  return (long)(ulong)input;
167
 
                                                                case TypeCode.Single:  return (long)(float)input;
168
 
                                                                case TypeCode.Double:  return (long)(double)input;
169
 
                                                                case TypeCode.Decimal: return (long)(decimal)input;
170
 
                                                }
171
 
                                                break;
172
 
                                        case TypeCode.UInt64:
173
 
                                                switch (sourceType) {
174
 
                                                                case TypeCode.Char:    return (ulong)(char)input;
175
 
                                                                case TypeCode.SByte:   return (ulong)(sbyte)input;
176
 
                                                                case TypeCode.Byte:    return (ulong)(byte)input;
177
 
                                                                case TypeCode.Int16:   return (ulong)(short)input;
178
 
                                                                case TypeCode.UInt16:  return (ulong)(ushort)input;
179
 
                                                                case TypeCode.Int32:   return (ulong)(int)input;
180
 
                                                                case TypeCode.UInt32:  return (ulong)(uint)input;
181
 
                                                                case TypeCode.Int64:   return (ulong)(long)input;
182
 
                                                                case TypeCode.Single:  return (ulong)(float)input;
183
 
                                                                case TypeCode.Double:  return (ulong)(double)input;
184
 
                                                                case TypeCode.Decimal: return (ulong)(decimal)input;
185
 
                                                }
186
 
                                                break;
187
 
                                        case TypeCode.Single:
188
 
                                                switch (sourceType) {
189
 
                                                                case TypeCode.Char:    return (float)(char)input;
190
 
                                                                case TypeCode.SByte:   return (float)(sbyte)input;
191
 
                                                                case TypeCode.Byte:    return (float)(byte)input;
192
 
                                                                case TypeCode.Int16:   return (float)(short)input;
193
 
                                                                case TypeCode.UInt16:  return (float)(ushort)input;
194
 
                                                                case TypeCode.Int32:   return (float)(int)input;
195
 
                                                                case TypeCode.UInt32:  return (float)(uint)input;
196
 
                                                                case TypeCode.Int64:   return (float)(long)input;
197
 
                                                                case TypeCode.UInt64:  return (float)(ulong)input;
198
 
                                                                case TypeCode.Double:  return (float)(double)input;
199
 
                                                                case TypeCode.Decimal: return (float)(decimal)input;
200
 
                                                }
201
 
                                                break;
202
 
                                        case TypeCode.Double:
203
 
                                                switch (sourceType) {
204
 
                                                                case TypeCode.Char:    return (double)(char)input;
205
 
                                                                case TypeCode.SByte:   return (double)(sbyte)input;
206
 
                                                                case TypeCode.Byte:    return (double)(byte)input;
207
 
                                                                case TypeCode.Int16:   return (double)(short)input;
208
 
                                                                case TypeCode.UInt16:  return (double)(ushort)input;
209
 
                                                                case TypeCode.Int32:   return (double)(int)input;
210
 
                                                                case TypeCode.UInt32:  return (double)(uint)input;
211
 
                                                                case TypeCode.Int64:   return (double)(long)input;
212
 
                                                                case TypeCode.UInt64:  return (double)(ulong)input;
213
 
                                                                case TypeCode.Single:  return (double)(float)input;
214
 
                                                                case TypeCode.Decimal: return (double)(decimal)input;
215
 
                                                }
216
 
                                                break;
217
 
                                        case TypeCode.Decimal:
218
 
                                                switch (sourceType) {
219
 
                                                                case TypeCode.Char:    return (decimal)(char)input;
220
 
                                                                case TypeCode.SByte:   return (decimal)(sbyte)input;
221
 
                                                                case TypeCode.Byte:    return (decimal)(byte)input;
222
 
                                                                case TypeCode.Int16:   return (decimal)(short)input;
223
 
                                                                case TypeCode.UInt16:  return (decimal)(ushort)input;
224
 
                                                                case TypeCode.Int32:   return (decimal)(int)input;
225
 
                                                                case TypeCode.UInt32:  return (decimal)(uint)input;
226
 
                                                                case TypeCode.Int64:   return (decimal)(long)input;
227
 
                                                                case TypeCode.UInt64:  return (decimal)(ulong)input;
228
 
                                                                case TypeCode.Single:  return (decimal)(float)input;
229
 
                                                                case TypeCode.Double:  return (decimal)(double)input;
230
 
                                                }
231
 
                                                break;
232
 
                                }
233
 
                                throw new InvalidCastException("Cast from " + sourceType + " to " + targetType + "not supported.");
234
 
                        }
235
 
                }
236
 
                
237
 
                static object CSharpPrimitiveCastUnchecked(TypeCode targetType, object input)
238
 
                {
239
 
                        unchecked {
240
 
                                TypeCode sourceType = Type.GetTypeCode(input.GetType());
241
 
                                if (sourceType == targetType)
242
 
                                        return input;
243
 
                                switch (targetType) {
244
 
                                        case TypeCode.Char:
245
 
                                                switch (sourceType) {
246
 
                                                                case TypeCode.SByte:   return (char)(sbyte)input;
247
 
                                                                case TypeCode.Byte:    return (char)(byte)input;
248
 
                                                                case TypeCode.Int16:   return (char)(short)input;
249
 
                                                                case TypeCode.UInt16:  return (char)(ushort)input;
250
 
                                                                case TypeCode.Int32:   return (char)(int)input;
251
 
                                                                case TypeCode.UInt32:  return (char)(uint)input;
252
 
                                                                case TypeCode.Int64:   return (char)(long)input;
253
 
                                                                case TypeCode.UInt64:  return (char)(ulong)input;
254
 
                                                                case TypeCode.Single:  return (char)(float)input;
255
 
                                                                case TypeCode.Double:  return (char)(double)input;
256
 
                                                                case TypeCode.Decimal: return (char)(decimal)input;
257
 
                                                }
258
 
                                                break;
259
 
                                        case TypeCode.SByte:
260
 
                                                switch (sourceType) {
261
 
                                                                case TypeCode.Char:    return (sbyte)(char)input;
262
 
                                                                case TypeCode.Byte:    return (sbyte)(byte)input;
263
 
                                                                case TypeCode.Int16:   return (sbyte)(short)input;
264
 
                                                                case TypeCode.UInt16:  return (sbyte)(ushort)input;
265
 
                                                                case TypeCode.Int32:   return (sbyte)(int)input;
266
 
                                                                case TypeCode.UInt32:  return (sbyte)(uint)input;
267
 
                                                                case TypeCode.Int64:   return (sbyte)(long)input;
268
 
                                                                case TypeCode.UInt64:  return (sbyte)(ulong)input;
269
 
                                                                case TypeCode.Single:  return (sbyte)(float)input;
270
 
                                                                case TypeCode.Double:  return (sbyte)(double)input;
271
 
                                                                case TypeCode.Decimal: return (sbyte)(decimal)input;
272
 
                                                }
273
 
                                                break;
274
 
                                        case TypeCode.Byte:
275
 
                                                switch (sourceType) {
276
 
                                                                case TypeCode.Char:    return (byte)(char)input;
277
 
                                                                case TypeCode.SByte:   return (byte)(sbyte)input;
278
 
                                                                case TypeCode.Int16:   return (byte)(short)input;
279
 
                                                                case TypeCode.UInt16:  return (byte)(ushort)input;
280
 
                                                                case TypeCode.Int32:   return (byte)(int)input;
281
 
                                                                case TypeCode.UInt32:  return (byte)(uint)input;
282
 
                                                                case TypeCode.Int64:   return (byte)(long)input;
283
 
                                                                case TypeCode.UInt64:  return (byte)(ulong)input;
284
 
                                                                case TypeCode.Single:  return (byte)(float)input;
285
 
                                                                case TypeCode.Double:  return (byte)(double)input;
286
 
                                                                case TypeCode.Decimal: return (byte)(decimal)input;
287
 
                                                }
288
 
                                                break;
289
 
                                        case TypeCode.Int16:
290
 
                                                switch (sourceType) {
291
 
                                                                case TypeCode.Char:    return (short)(char)input;
292
 
                                                                case TypeCode.SByte:   return (short)(sbyte)input;
293
 
                                                                case TypeCode.Byte:    return (short)(byte)input;
294
 
                                                                case TypeCode.UInt16:  return (short)(ushort)input;
295
 
                                                                case TypeCode.Int32:   return (short)(int)input;
296
 
                                                                case TypeCode.UInt32:  return (short)(uint)input;
297
 
                                                                case TypeCode.Int64:   return (short)(long)input;
298
 
                                                                case TypeCode.UInt64:  return (short)(ulong)input;
299
 
                                                                case TypeCode.Single:  return (short)(float)input;
300
 
                                                                case TypeCode.Double:  return (short)(double)input;
301
 
                                                                case TypeCode.Decimal: return (short)(decimal)input;
302
 
                                                }
303
 
                                                break;
304
 
                                        case TypeCode.UInt16:
305
 
                                                switch (sourceType) {
306
 
                                                                case TypeCode.Char:    return (ushort)(char)input;
307
 
                                                                case TypeCode.SByte:   return (ushort)(sbyte)input;
308
 
                                                                case TypeCode.Byte:    return (ushort)(byte)input;
309
 
                                                                case TypeCode.Int16:   return (ushort)(short)input;
310
 
                                                                case TypeCode.Int32:   return (ushort)(int)input;
311
 
                                                                case TypeCode.UInt32:  return (ushort)(uint)input;
312
 
                                                                case TypeCode.Int64:   return (ushort)(long)input;
313
 
                                                                case TypeCode.UInt64:  return (ushort)(ulong)input;
314
 
                                                                case TypeCode.Single:  return (ushort)(float)input;
315
 
                                                                case TypeCode.Double:  return (ushort)(double)input;
316
 
                                                                case TypeCode.Decimal: return (ushort)(decimal)input;
317
 
                                                }
318
 
                                                break;
319
 
                                        case TypeCode.Int32:
320
 
                                                switch (sourceType) {
321
 
                                                                case TypeCode.Char:    return (int)(char)input;
322
 
                                                                case TypeCode.SByte:   return (int)(sbyte)input;
323
 
                                                                case TypeCode.Byte:    return (int)(byte)input;
324
 
                                                                case TypeCode.Int16:   return (int)(short)input;
325
 
                                                                case TypeCode.UInt16:  return (int)(ushort)input;
326
 
                                                                case TypeCode.UInt32:  return (int)(uint)input;
327
 
                                                                case TypeCode.Int64:   return (int)(long)input;
328
 
                                                                case TypeCode.UInt64:  return (int)(ulong)input;
329
 
                                                                case TypeCode.Single:  return (int)(float)input;
330
 
                                                                case TypeCode.Double:  return (int)(double)input;
331
 
                                                                case TypeCode.Decimal: return (int)(decimal)input;
332
 
                                                }
333
 
                                                break;
334
 
                                        case TypeCode.UInt32:
335
 
                                                switch (sourceType) {
336
 
                                                                case TypeCode.Char:    return (uint)(char)input;
337
 
                                                                case TypeCode.SByte:   return (uint)(sbyte)input;
338
 
                                                                case TypeCode.Byte:    return (uint)(byte)input;
339
 
                                                                case TypeCode.Int16:   return (uint)(short)input;
340
 
                                                                case TypeCode.UInt16:  return (uint)(ushort)input;
341
 
                                                                case TypeCode.Int32:   return (uint)(int)input;
342
 
                                                                case TypeCode.Int64:   return (uint)(long)input;
343
 
                                                                case TypeCode.UInt64:  return (uint)(ulong)input;
344
 
                                                                case TypeCode.Single:  return (uint)(float)input;
345
 
                                                                case TypeCode.Double:  return (uint)(double)input;
346
 
                                                                case TypeCode.Decimal: return (uint)(decimal)input;
347
 
                                                }
348
 
                                                break;
349
 
                                        case TypeCode.Int64:
350
 
                                                switch (sourceType) {
351
 
                                                                case TypeCode.Char:    return (long)(char)input;
352
 
                                                                case TypeCode.SByte:   return (long)(sbyte)input;
353
 
                                                                case TypeCode.Byte:    return (long)(byte)input;
354
 
                                                                case TypeCode.Int16:   return (long)(short)input;
355
 
                                                                case TypeCode.UInt16:  return (long)(ushort)input;
356
 
                                                                case TypeCode.Int32:   return (long)(int)input;
357
 
                                                                case TypeCode.UInt32:  return (long)(uint)input;
358
 
                                                                case TypeCode.UInt64:  return (long)(ulong)input;
359
 
                                                                case TypeCode.Single:  return (long)(float)input;
360
 
                                                                case TypeCode.Double:  return (long)(double)input;
361
 
                                                                case TypeCode.Decimal: return (long)(decimal)input;
362
 
                                                }
363
 
                                                break;
364
 
                                        case TypeCode.UInt64:
365
 
                                                switch (sourceType) {
366
 
                                                                case TypeCode.Char:    return (ulong)(char)input;
367
 
                                                                case TypeCode.SByte:   return (ulong)(sbyte)input;
368
 
                                                                case TypeCode.Byte:    return (ulong)(byte)input;
369
 
                                                                case TypeCode.Int16:   return (ulong)(short)input;
370
 
                                                                case TypeCode.UInt16:  return (ulong)(ushort)input;
371
 
                                                                case TypeCode.Int32:   return (ulong)(int)input;
372
 
                                                                case TypeCode.UInt32:  return (ulong)(uint)input;
373
 
                                                                case TypeCode.Int64:   return (ulong)(long)input;
374
 
                                                                case TypeCode.Single:  return (ulong)(float)input;
375
 
                                                                case TypeCode.Double:  return (ulong)(double)input;
376
 
                                                                case TypeCode.Decimal: return (ulong)(decimal)input;
377
 
                                                }
378
 
                                                break;
379
 
                                        case TypeCode.Single:
380
 
                                                switch (sourceType) {
381
 
                                                                case TypeCode.Char:    return (float)(char)input;
382
 
                                                                case TypeCode.SByte:   return (float)(sbyte)input;
383
 
                                                                case TypeCode.Byte:    return (float)(byte)input;
384
 
                                                                case TypeCode.Int16:   return (float)(short)input;
385
 
                                                                case TypeCode.UInt16:  return (float)(ushort)input;
386
 
                                                                case TypeCode.Int32:   return (float)(int)input;
387
 
                                                                case TypeCode.UInt32:  return (float)(uint)input;
388
 
                                                                case TypeCode.Int64:   return (float)(long)input;
389
 
                                                                case TypeCode.UInt64:  return (float)(ulong)input;
390
 
                                                                case TypeCode.Double:  return (float)(double)input;
391
 
                                                                case TypeCode.Decimal: return (float)(decimal)input;
392
 
                                                }
393
 
                                                break;
394
 
                                        case TypeCode.Double:
395
 
                                                switch (sourceType) {
396
 
                                                                case TypeCode.Char:    return (double)(char)input;
397
 
                                                                case TypeCode.SByte:   return (double)(sbyte)input;
398
 
                                                                case TypeCode.Byte:    return (double)(byte)input;
399
 
                                                                case TypeCode.Int16:   return (double)(short)input;
400
 
                                                                case TypeCode.UInt16:  return (double)(ushort)input;
401
 
                                                                case TypeCode.Int32:   return (double)(int)input;
402
 
                                                                case TypeCode.UInt32:  return (double)(uint)input;
403
 
                                                                case TypeCode.Int64:   return (double)(long)input;
404
 
                                                                case TypeCode.UInt64:  return (double)(ulong)input;
405
 
                                                                case TypeCode.Single:  return (double)(float)input;
406
 
                                                                case TypeCode.Decimal: return (double)(decimal)input;
407
 
                                                }
408
 
                                                break;
409
 
                                        case TypeCode.Decimal:
410
 
                                                switch (sourceType) {
411
 
                                                                case TypeCode.Char:    return (decimal)(char)input;
412
 
                                                                case TypeCode.SByte:   return (decimal)(sbyte)input;
413
 
                                                                case TypeCode.Byte:    return (decimal)(byte)input;
414
 
                                                                case TypeCode.Int16:   return (decimal)(short)input;
415
 
                                                                case TypeCode.UInt16:  return (decimal)(ushort)input;
416
 
                                                                case TypeCode.Int32:   return (decimal)(int)input;
417
 
                                                                case TypeCode.UInt32:  return (decimal)(uint)input;
418
 
                                                                case TypeCode.Int64:   return (decimal)(long)input;
419
 
                                                                case TypeCode.UInt64:  return (decimal)(ulong)input;
420
 
                                                                case TypeCode.Single:  return (decimal)(float)input;
421
 
                                                                case TypeCode.Double:  return (decimal)(double)input;
422
 
                                                }
423
 
                                                break;
424
 
                                }
425
 
                                throw new InvalidCastException("Cast from " + sourceType + " to " + targetType + " not supported.");
426
 
                        }
427
 
                }
428
 
        }
429
 
}