commit 4e7672568ef110f3b96f758fbc4af828ea2c8c8a
author Stefan Bodewig <bodewig@apache.org> Mon Mar 05 11:40:35 2012 +0000
committer Stefan Bodewig <bodewig@apache.org> Mon Mar 05 11:40:35 2012 +0000
tree 6677c6f90da1e469ff972e063248fae60b65f1e4
parent 1ffe1b18969edbf44b87d3b98b2592e6fe165710

tiny performance tweak

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1297012 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/compress/archivers/tar/TarUtils.java

diff --git a/src/main/java/org/apache/commons/compress/archivers/tar/TarUtils.java b/src/main/java/org/apache/commons/compress/archivers/tar/TarUtils.java
index b45b1f2..47f341b 100644
--- a/src/main/java/org/apache/commons/compress/archivers/tar/TarUtils.java
+++ b/src/main/java/org/apache/commons/compress/archivers/tar/TarUtils.java
@@ -380,7 +380,7 @@
                                          final int offset, final int length,
                                          final boolean negative) {
         final int bits = (length - 1) * 8;
-        final long max = (long) Math.pow(2, bits);
+        final long max = 1l << bits;
         long val = Math.abs(value);
         if (val >= max) {
             throw new IllegalArgumentException("Value " + value +