1 files changed, 3 insertions, 4 deletions
diff --git a/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
index 9f0fcd316f..199e479710 100644
--- a/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
+++ b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
@@ -10,6 +10,7 @@
 #include <memory>
 
 #include "fxbarcode/utils.h"
+#include "third_party/base/optional.h"
 
 class CBC_ReedSolomonGF256Poly;
 
@@ -24,12 +25,10 @@ class CBC_ReedSolomonGF256 {
   CBC_ReedSolomonGF256Poly* GetZero() const;
   CBC_ReedSolomonGF256Poly* GetOne() const;
   std::unique_ptr<CBC_ReedSolomonGF256Poly> BuildMonomial(int32_t degree,
-                                                          int32_t coefficient,
-                                                          int32_t& e);
+                                                          int32_t coefficient);
   static int32_t AddOrSubtract(int32_t a, int32_t b);
   int32_t Exp(int32_t a);
-  int32_t Log(int32_t a, int32_t& e);
-  int32_t Inverse(int32_t a, int32_t& e);
+  Optional<int32_t> Inverse(int32_t a);
   int32_t Multiply(int32_t a, int32_t b);
   void Init();