js/src/devtools/jint/sunspider/math-partial-sums.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 // The Computer Language Shootout
     2 // http://shootout.alioth.debian.org/
     3 // contributed by Isaac Gouy
     5 function partial(n){
     6     var a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = a9 = 0.0;
     7     var twothirds = 2.0/3.0;
     8     var alt = -1.0;
     9     var k2 = k3 = sk = ck = 0.0;
    11   /* BEGIN LOOP */
    12     for (var k = 1; k <= n; k++){
    13         k2 = k*k;
    14         k3 = k2*k;
    15         sk = Math.sin(k);
    16         ck = Math.cos(k);
    17         alt = -alt;
    19         a1 += Math.pow(twothirds,k-1);
    20         a2 += Math.pow(k,-0.5);
    21         a3 += 1.0/(k*(k+1.0));
    22         a4 += 1.0/(k3 * sk*sk);
    23         a5 += 1.0/(k3 * ck*ck);
    24         a6 += 1.0/k;
    25         a7 += 1.0/k2;
    26         a8 += alt/k;
    27         a9 += alt/(2*k -1);
    28     }
    29   /* END LOOP */
    30 }
    32   /* BEGIN LOOP */
    33 for (var i = 1024; i <= 16384; i *= 2) {
    34     partial(i);
    35 }
    36   /* END LOOP */

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