js/src/devtools/jint/sunspider/bitops-nsieve-bits.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.

michael@0 1 // The Great Computer Language Shootout
michael@0 2 // http://shootout.alioth.debian.org
michael@0 3 //
michael@0 4 // Contributed by Ian Osgood
michael@0 5
michael@0 6 function pad(n,width) {
michael@0 7 var s = n.toString();
michael@0 8 /* BEGIN LOOP */
michael@0 9 while (s.length < width) s = ' ' + s;
michael@0 10 /* END LOOP */
michael@0 11 return s;
michael@0 12 }
michael@0 13
michael@0 14 function primes(isPrime, n) {
michael@0 15 var i, count = 0, m = 10000<<n, size = m+31>>5;
michael@0 16
michael@0 17 /* BEGIN LOOP */
michael@0 18 for (i=0; i<size; i++) isPrime[i] = 0xffffffff;
michael@0 19 /* END LOOP */
michael@0 20
michael@0 21 /* BEGIN LOOP */
michael@0 22 for (i=2; i<m; i++)
michael@0 23 if (isPrime[i>>5] & 1<<(i&31)) {
michael@0 24 /* BEGIN LOOP */
michael@0 25 for (var j=i+i; j<m; j+=i)
michael@0 26 isPrime[j>>5] &= ~(1<<(j&31));
michael@0 27 /* END LOOP */
michael@0 28 count++;
michael@0 29 }
michael@0 30 /* END LOOP */
michael@0 31 }
michael@0 32
michael@0 33 function sieve() {
michael@0 34 /* BEGIN LOOP */
michael@0 35 for (var i = 4; i <= 4; i++) {
michael@0 36 var isPrime = new Array((10000<<i)+31>>5);
michael@0 37 primes(isPrime, i);
michael@0 38 }
michael@0 39 /* END LOOP */
michael@0 40 }
michael@0 41
michael@0 42 sieve();

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