gecko-dev/js/perf/tests/math/asin-001.js

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 * The Original Code is JavaScript Engine performance test.
 *
 * The Initial Developer of the Original Code is Netscape Communications Corp.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s): Mazie Lobo     mazielobo@netscape.com
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
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 *
 *
 * Date:    12 October 2002
 * SUMMARY: Testing the |asin()| method for the Math object.  The asin method
 * returns a numeric value between -pi/2 and pi/2 radians. If the value of 
 * number is outside this range, it returns NaN. Because asin is a static 
 * method of Math, you always use it as Math.asin(), rather than as a method
 * of a Math object you created. 
 *
 * Syntax:  |asin(x)|  where x is a number.
 */
//-----------------------------------------------------------------------------
var UBOUND=1000000;

test();

function test()
{
  var u_bound = UBOUND;
  var status;
  var start;
  var end;
  var i;
  
  status = "Math.asin(0)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(0);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(1)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(1);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(-1)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(-1);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(.25)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(.25);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(.87)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(.87);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(5)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(5);
  }
  end = new Date();
  reportTime(status, start, end);
  //value returns a NaN

  status = "Math.asin(-.25)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(-.25);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(-.87)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(-.87);
  }
  end = new Date();
  reportTime(status, start, end);

  status = "Math.asin(-5)";
  start = new Date();
  for(i=0; i<u_bound; i++)
  {
    Math.asin(-5);
  }
  end = new Date();
  reportTime(status, start, end);
}