5 // Chris J Breisch (cjbreisch@altavista.net)
6 // Francesco Delfino (pluto@tipic.com)
7 // Dennis Hayes (dennish@raytek.com)
9 // (C) copyright 2002 Chris J Breisch
10 // 2002 Tipic, Inc (http://www.tipic.com)
13 * Copyright (c) 2002-2003 Mainsoft Corporation.
14 * Copyright (C) 2004 Novell, Inc (http://www.novell.com)
16 * Permission is hereby granted, free of charge, to any person obtaining a
17 * copy of this software and associated documentation files (the "Software"),
18 * to deal in the Software without restriction, including without limitation
19 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
20 * and/or sell copies of the Software, and to permit persons to whom the
21 * Software is furnished to do so, subject to the following conditions:
23 * The above copyright notice and this permission notice shall be included in
24 * all copies or substantial portions of the Software.
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
29 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
30 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
31 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32 * DEALINGS IN THE SOFTWARE.
35 using System.ComponentModel;
36 using Microsoft.VisualBasic;
38 namespace Microsoft.VisualBasic.CompilerServices
40 [StandardModule, EditorBrowsable(EditorBrowsableState.Never)]
41 sealed public class IntegerType {
42 private IntegerType () {}
46 * The method try to convert given string to int in a following way:
47 * 1. If input string is null return 0.
48 * 2. If input string represents number: return value of this number,
49 * @exception InvalidCastException - in case if number translation failed
50 * @param str - The string that converted to int
51 * @return int The value that extracted from the input string.
52 * @see Microsoft.VisualBasic.VBUtils#isNumber
54 public static System.Int32 FromString (string Value) {
55 if(Value == null)return 0;
57 long [] val = new long [1];
59 if (StringType.IsHexOrOctValue (Value, val))
60 return Convert.ToInt32 (val [0]);
62 return Convert.ToInt32 (Convert.ToDouble (Value));
63 } catch (FormatException e) {
64 throw new InvalidCastException(
65 Utils.GetResourceString("InvalidCast_FromStringTo",
71 public static System.Int32 FromObject (object Value) {
72 if ((object)Value==null)return 0;
74 if(Value is string)return FromString((string) Value);
76 if(Value is int)return ((int)Value);
78 return System.Convert.ToInt32(Value);