diff options
Diffstat (limited to 'pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java')
| -rw-r--r-- | pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java b/pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java index 9621deee0..60aede101 100644 --- a/pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java +++ b/pki/base/util/src/netscape/security/util/ByteArrayLexOrder.java @@ -21,41 +21,43 @@ import java.util.Comparator; /** * Compare two byte arrays in lexicographical order. - * + * * @version 1.4 97/12/10 * @author D. N. Hoover */ public class ByteArrayLexOrder implements Comparator { /** - * Perform lexicographical comparison of two byte arrays, regarding each - * byte as unsigned. That is, compare array entries in order until they - * differ--the array with the smaller entry is "smaller". If array entries - * are equal till one array ends, then the longer array is "bigger". - * - * @param obj1 first byte array to compare. - * @param obj2 second byte array to compare. - * @return negative number if obj1 < obj2, 0 if obj1 == obj2, positive - * number if obj1 > obj2. - * - * @exception <code>ClassCastException</code> if either argument is not a - * byte array. + * Perform lexicographical comparison of two byte arrays, + * regarding each byte as unsigned. That is, compare array entries + * in order until they differ--the array with the smaller entry + * is "smaller". If array entries are + * equal till one array ends, then the longer array is "bigger". + * + * @param obj1 first byte array to compare. + * @param obj2 second byte array to compare. + * @return negative number if obj1 < obj2, 0 if obj1 == obj2, + * positive number if obj1 > obj2. + * + * @exception <code>ClassCastException</code> + * if either argument is not a byte array. */ public final int compare(Object obj1, Object obj2) { - byte[] bytes1 = (byte[]) obj1; - byte[] bytes2 = (byte[]) obj2; + byte[] bytes1 = (byte[]) obj1; + byte[] bytes2 = (byte[]) obj2; - int diff; - for (int i = 0; i < bytes1.length && i < bytes2.length; i++) { - diff = (bytes1[i] & 0xFF) - (bytes2[i] & 0xFF); - if (diff != 0) { - return diff; - } - } - // if array entries are equal till the first ends, then the - // longer is "bigger" - return bytes1.length - bytes2.length; + int diff; + for (int i = 0; i < bytes1.length && i < bytes2.length; i++) { + diff = (bytes1[i] & 0xFF) - (bytes2[i] & 0xFF); + if (diff != 0) { + return diff; + } + } + // if array entries are equal till the first ends, then the + // longer is "bigger" + return bytes1.length - bytes2.length; } + } |