1 files changed, 13 insertions, 0 deletions
diff --git a/7zip/Compress/Huffman/HuffmanEncoder.cpp b/7zip/Compress/Huffman/HuffmanEncoder.cpp
index 5876bae8..2badc58e 100755
--- a/7zip/Compress/Huffman/HuffmanEncoder.cpp
+++ b/7zip/Compress/Huffman/HuffmanEncoder.cpp
@@ -315,4 +315,17 @@ void CEncoder::BuildTree(Byte *levels)
     levels[n] = Byte(m_Items[n].Len);
 }
 
+void CEncoder::ReverseBits()
+{ 
+  for (UInt32 symbol = 0; symbol < m_NumSymbols; symbol++)
+  {
+    CItem &item = m_Items[symbol];
+    UInt32 value = item.Code;
+    UInt32 reverseValue = 0;
+    for(UInt32 i = item.Len; i != 0; i--, value >>= 1) 
+      reverseValue = (reverseValue << 1) | (value & 1);
+    item.Code = reverseValue;
+  }
+}
+
 }}