diff --git a/include/LZ77/LZLookupTable.hpp b/include/LZ77/LZLookupTable.hpp
index 61bfb9e..bd66516 100644
--- a/include/LZ77/LZLookupTable.hpp
+++ b/include/LZ77/LZLookupTable.hpp
@@ -9,7 +9,8 @@
 struct LZLengthOffset {
   atUint32 length; // The number of bytes compressed
   atUint16 offset; // How far back in sliding window where bytes that match the lookAheadBuffer is located
-  bool compare_equal(const LZLengthOffset& lo_pair) { return length == lo_pair.length && offset == lo_pair.offset; }
+  bool operator==(const LZLengthOffset& lo_pair) const { return length == lo_pair.length && offset == lo_pair.offset; }
+  bool operator!=(const LZLengthOffset& lo_pair) const { return !operator==(lo_pair); }
 };
 
 class LZLookupTable {
@@ -17,7 +18,7 @@ public:
   LZLookupTable();
   LZLookupTable(atInt32 minimumMatch, atInt32 slidingWindow = 4096, atInt32 lookAheadWindow = 18);
   ~LZLookupTable();
-  LZLengthOffset search(atUint8* curPos, const atUint8* dataBegin, const atUint8* dataEnd);
+  LZLengthOffset search(const atUint8* curPos, const atUint8* dataBegin, const atUint8* dataEnd);
   void setLookAheadWindow(atInt32 lookAheadWindow);
 
 private:
diff --git a/src/LZ77/LZLookupTable.cpp b/src/LZ77/LZLookupTable.cpp
index 0809c84..e7b7ba6 100644
--- a/src/LZ77/LZLookupTable.cpp
+++ b/src/LZ77/LZLookupTable.cpp
@@ -36,7 +36,7 @@ void LZLookupTable::setLookAheadWindow(atInt32 lookAheadWindow) {
     m_lookAheadWindow = 18;
 }
 
-LZLengthOffset LZLookupTable::search(atUint8* curPos, const atUint8* dataBegin, const atUint8* dataEnd) {
+LZLengthOffset LZLookupTable::search(const atUint8* curPos, const atUint8* dataBegin, const atUint8* dataEnd) {
   LZLengthOffset loPair = {0, 0};
 
   // Returns negative 1 for search failures since the current position is passed the size to be compressed