js/src/tests/test262/ch12/12.9/S12.9_A4.js

Wed, 31 Dec 2014 13:27:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 13:27:57 +0100
branch
TOR_BUG_3246
changeset 6
8bccb770b82d
permissions
-rw-r--r--

Ignore runtime configuration files generated during quality assurance.

michael@0 1 // Copyright 2009 the Sputnik authors. All rights reserved.
michael@0 2 // This code is governed by the BSD license found in the LICENSE file.
michael@0 3
michael@0 4 /**
michael@0 5 * The production ReturnStatement : return Expression; is evaluated as:
michael@0 6 * i) Evaluate Expression.
michael@0 7 * ii) Call GetValue(Result(2)).
michael@0 8 * iii) Return (return, Result(3), empty)
michael@0 9 *
michael@0 10 * @path ch12/12.9/S12.9_A4.js
michael@0 11 * @description Return very sophisticated expression and function
michael@0 12 */
michael@0 13
michael@0 14 // second derivative
michael@0 15 function DD_operator(f, delta){return function(x){return (f(x+delta)-2*f(x)+f(x-delta))/(delta*delta)};}
michael@0 16
michael@0 17 DDsin = DD_operator(Math.sin, 0.00001);
michael@0 18
michael@0 19
michael@0 20 //////////////////////////////////////////////////////////////////////////////
michael@0 21 //CHECK#1
michael@0 22 // ((sin(x))')' = -sin(x)
michael@0 23 if (DDsin( Math.PI/2 ) + Math.sin( Math.PI/2 ) > 0.00001) {
michael@0 24 $ERROR('#1: return Expression yields to Return (return, GetValue(Evaluate Expression), empty)');
michael@0 25 }
michael@0 26 //
michael@0 27 //////////////////////////////////////////////////////////////////////////////
michael@0 28

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