From 7af6c4ca50322258bbd23214920c4c9122482966 Mon Sep 17 00:00:00 2001
From: CGantert345 <57003061+CGantert345@users.noreply.github.com>
Date: Tue, 25 Jan 2022 13:33:37 +0100
Subject: test for the new dynamic header version 2

---
 src/main/java/org/uic/barcode/asn1/uper/AsnUtils.java | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/main/java/org/uic/barcode/asn1')

diff --git a/src/main/java/org/uic/barcode/asn1/uper/AsnUtils.java b/src/main/java/org/uic/barcode/asn1/uper/AsnUtils.java
index dbb95c9..414f181 100644
--- a/src/main/java/org/uic/barcode/asn1/uper/AsnUtils.java
+++ b/src/main/java/org/uic/barcode/asn1/uper/AsnUtils.java
@@ -1,5 +1,7 @@
 package org.uic.barcode.asn1.uper;
 
+import java.math.BigInteger;
+
 public class AsnUtils {
 	
 
@@ -55,5 +57,19 @@ public class AsnUtils {
 	    boolean result = (bytes[index / 8] & mask[index % 8]) != 0;
 	    return result;
 	}
+	
+	public static byte[] shiftBytesToLeft(byte[] bytes, int shift) {
+		
+		// create from array
+		BigInteger bigInt = new BigInteger(bytes);
+
+		// shift
+		BigInteger shiftInt = bigInt.shiftLeft(shift);
+
+		// back to array
+		return shiftInt.toByteArray();
+
+	}
+	
 
 }
-- 
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