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+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+ File Name: 11.4.5.js
+ ECMA Section: 11.4.5 Prefix decrement operator
+ Description:
+
+ The production UnaryExpression : -- UnaryExpression is evaluated as follows:
+
+ 1.Evaluate UnaryExpression.
+ 2.Call GetValue(Result(1)).
+ 3.Call ToNumber(Result(2)).
+ 4.Subtract the value 1 from Result(3), using the same rules as for the - operator (section 11.6.3).
+ 5.Call PutValue(Result(1), Result(4)).
+
+ 1.Return Result(4).
+ Author: christine@netscape.com
+ Date: \ 12 november 1997
+*/
+var SECTION = "11.4.5";
+var VERSION = "ECMA_1";
+startTest();
+
+writeHeaderToLog( SECTION + " Prefix decrement operator");
+
+//
+new TestCase( SECTION, "var MYVAR; --MYVAR", NaN, eval("var MYVAR; --MYVAR") );
+new TestCase( SECTION, "var MYVAR= void 0; --MYVAR", NaN, eval("var MYVAR=void 0; --MYVAR") );
+new TestCase( SECTION, "var MYVAR=null; --MYVAR", -1, eval("var MYVAR=null; --MYVAR") );
+new TestCase( SECTION, "var MYVAR=true; --MYVAR", 0, eval("var MYVAR=true; --MYVAR") );
+new TestCase( SECTION, "var MYVAR=false; --MYVAR", -1, eval("var MYVAR=false; --MYVAR") );
+
+// special numbers
+// verify return value
+
+new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;--MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=Number.NaN;--MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;--MYVAR") );
+
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;--MYVAR;MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR;MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=Number.NaN;--MYVAR;MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;--MYVAR;MYVAR") );
+
+
+// number primitives
+new TestCase( SECTION, "var MYVAR=0;--MYVAR", -1, eval("var MYVAR=0;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=0.2345;--MYVAR", -0.7655, eval("var MYVAR=0.2345;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=-0.2345;--MYVAR", -1.2345, eval("var MYVAR=-0.2345;--MYVAR") );
+
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=0.2345;--MYVAR;MYVAR", -0.7655, eval("var MYVAR=0.2345;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=-0.2345;--MYVAR;MYVAR", -1.2345, eval("var MYVAR=-0.2345;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
+
+// boolean values
+// verify return value
+
+new TestCase( SECTION, "var MYVAR=true;--MYVAR", 0, eval("var MYVAR=true;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=false;--MYVAR", -1, eval("var MYVAR=false;--MYVAR") );
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR=true;--MYVAR;MYVAR", 0, eval("var MYVAR=true;--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=false;--MYVAR;MYVAR", -1, eval("var MYVAR=false;--MYVAR;MYVAR") );
+
+// boolean objects
+// verify return value
+
+new TestCase( SECTION, "var MYVAR=new Boolean(true);--MYVAR", 0, eval("var MYVAR=true;--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new Boolean(false);--MYVAR", -1, eval("var MYVAR=false;--MYVAR") );
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR=new Boolean(true);--MYVAR;MYVAR", 0, eval("var MYVAR=new Boolean(true);--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new Boolean(false);--MYVAR;MYVAR", -1, eval("var MYVAR=new Boolean(false);--MYVAR;MYVAR") );
+
+// string primitives
+new TestCase( SECTION, "var MYVAR='string';--MYVAR", Number.NaN, eval("var MYVAR='string';--MYVAR") );
+new TestCase( SECTION, "var MYVAR='12345';--MYVAR", 12344, eval("var MYVAR='12345';--MYVAR") );
+new TestCase( SECTION, "var MYVAR='-12345';--MYVAR", -12346, eval("var MYVAR='-12345';--MYVAR") );
+new TestCase( SECTION, "var MYVAR='0Xf';--MYVAR", 14, eval("var MYVAR='0Xf';--MYVAR") );
+new TestCase( SECTION, "var MYVAR='077';--MYVAR", 76, eval("var MYVAR='077';--MYVAR") );
+new TestCase( SECTION, "var MYVAR=''; --MYVAR", -1, eval("var MYVAR='';--MYVAR") );
+
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR='string';--MYVAR;MYVAR", Number.NaN, eval("var MYVAR='string';--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR='12345';--MYVAR;MYVAR", 12344, eval("var MYVAR='12345';--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR='-12345';--MYVAR;MYVAR", -12346, eval("var MYVAR='-12345';--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR='0xf';--MYVAR;MYVAR", 14, eval("var MYVAR='0xf';--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR='077';--MYVAR;MYVAR", 76, eval("var MYVAR='077';--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR='';--MYVAR;MYVAR", -1, eval("var MYVAR='';--MYVAR;MYVAR") );
+
+// string objects
+new TestCase( SECTION, "var MYVAR=new String('string');--MYVAR", Number.NaN, eval("var MYVAR=new String('string');--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('12345');--MYVAR", 12344, eval("var MYVAR=new String('12345');--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('-12345');--MYVAR", -12346, eval("var MYVAR=new String('-12345');--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('0Xf');--MYVAR", 14, eval("var MYVAR=new String('0Xf');--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('077');--MYVAR", 76, eval("var MYVAR=new String('077');--MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String(''); --MYVAR", -1, eval("var MYVAR=new String('');--MYVAR") );
+
+// verify value of variable
+
+new TestCase( SECTION, "var MYVAR=new String('string');--MYVAR;MYVAR", Number.NaN, eval("var MYVAR=new String('string');--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('12345');--MYVAR;MYVAR", 12344, eval("var MYVAR=new String('12345');--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('-12345');--MYVAR;MYVAR", -12346, eval("var MYVAR=new String('-12345');--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('0xf');--MYVAR;MYVAR", 14, eval("var MYVAR=new String('0xf');--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('077');--MYVAR;MYVAR", 76, eval("var MYVAR=new String('077');--MYVAR;MYVAR") );
+new TestCase( SECTION, "var MYVAR=new String('');--MYVAR;MYVAR", -1, eval("var MYVAR=new String('');--MYVAR;MYVAR") );
+
+test();
+