1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is TransforMiiX XSLT processor code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * The MITRE Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1999
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Keith Visco <kvisco@ziplink.net> (Original Author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : /**
40 : * NumberResult
41 : * Represents the a number as the result of evaluating an Expr
42 : **/
43 :
44 : #include "txExprResult.h"
45 :
46 : /**
47 : * Default Constructor
48 : **/
49 :
50 : /**
51 : * Creates a new NumberResult with the value of the given double parameter
52 : * @param dbl the double to use for initialization of this NumberResult's value
53 : **/
54 0 : NumberResult::NumberResult(double aValue, txResultRecycler* aRecycler)
55 0 : : txAExprResult(aRecycler), value(aValue)
56 : {
57 0 : } //-- NumberResult
58 :
59 : /*
60 : * Virtual Methods from ExprResult
61 : */
62 :
63 0 : short NumberResult::getResultType() {
64 0 : return txAExprResult::NUMBER;
65 : } //-- getResultType
66 :
67 : void
68 0 : NumberResult::stringValue(nsString& aResult)
69 : {
70 0 : txDouble::toString(value, aResult);
71 0 : }
72 :
73 : const nsString*
74 0 : NumberResult::stringValuePointer()
75 : {
76 0 : return nsnull;
77 : }
78 :
79 0 : bool NumberResult::booleanValue() {
80 : // OG+
81 : // As per the XPath spec, the boolean value of a number is true if and only if
82 : // it is neither positive 0 nor negative 0 nor NaN
83 0 : return (bool)(value != 0.0 && !txDouble::isNaN(value));
84 : // OG-
85 : } //-- booleanValue
86 :
87 0 : double NumberResult::numberValue() {
88 0 : return this->value;
89 : } //-- numberValue
90 :
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