// Copyright (c) 2012 Ecma International.  All rights reserved.
// Ecma International makes this code available under the terms and conditions set
// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
// "Use Terms").   Any redistribution of this code must retain the above
// copyright and this notice and otherwise comply with the Use Terms.

/*---
es5id: 10.2.1.1.3-4-16-s
description: >
    Strict Mode - TypeError is thrown when changing the value of a
    Value Property of the Global Object under strict mode (NaN)
flags: [onlyStrict]
includes: [runTestCase.js]
---*/

function testcase() {
        "use strict";

        try {
            NaN = 12;
            return false;
        } catch (e) {
            return e instanceof TypeError;
        }
    }
runTestCase(testcase);
