Update Utils.java

mbakkar · mbakkar · commit fefe3ffc69c1 · 2014-05-05T13:37:20.000-04:00
A tiny optimization
diff --git a/src/net/i2p/crypto/eddsa/Utils.java b/src/net/i2p/crypto/eddsa/Utils.java
@@ -34,6 +34,6 @@ public static int negative(int b) {
      * @return 0 or 1, the value of the i'th bit in h
      */
     public static int bit(byte[] h, int i) {
-        return (h[i/8] >> (i%8)) & 1;
+        return (h[i >> 3] >> (i & 7)) & 1;
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -34,6 +34,6 @@ public static int negative(int b) {`
`34`	`34`	`* @return 0 or 1, the value of the i'th bit in h`
`35`	`35`	`*/`
`36`	`36`	`public static int bit(byte[] h, int i) {`
`37`		`- return (h[i/8] >> (i%8)) & 1;`
	`37`	`+ return (h[i >> 3] >> (i & 7)) & 1;`
`38`	`38`	`}`
`39`	`39`	`}`