01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.quercus.env;
31:
32: /**
33: * Represents a PHP number value (double or long).
34: */
35: public abstract class NumberValue extends Value {
36: /**
37: * Returns true for equality
38: */
39: public int cmp(Value rValue) {
40: double l = toDouble();
41: double r = rValue.toDouble();
42:
43: if (l == r)
44: return 0;
45: else if (l < r)
46: return -1;
47: else
48: return 1;
49: }
50:
51: /**
52: * Compare two numbers.
53: */
54: public static int compareNum(Value lValue, Value rValue) {
55: Value lVal = lValue.toValue();
56: Value rVal = rValue.toValue();
57:
58: if (lVal instanceof DoubleValue || rVal instanceof DoubleValue) {
59: double lDouble = lVal.toDouble();
60: double rDouble = rVal.toDouble();
61: if (lDouble < rDouble)
62: return -1;
63: if (lDouble > rDouble)
64: return 1;
65: return 0;
66: }
67: long lLong = lVal.toLong();
68: long rLong = rVal.toLong();
69: if (lLong < rLong)
70: return -1;
71: if (lLong > rLong)
72: return 1;
73: return 0;
74: }
75:
76: }
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