2 files changed, 18 insertions, 3 deletions
diff --git a/native/jni/src/utils/byte_array_view.h b/native/jni/src/utils/byte_array_view.h
index 2c97c6d58..10d7ae278 100644
--- a/native/jni/src/utils/byte_array_view.h
+++ b/native/jni/src/utils/byte_array_view.h
@@ -77,10 +77,12 @@ class ReadWriteByteArrayView {
     }
 
  private:
-    DISALLOW_ASSIGNMENT_OPERATOR(ReadWriteByteArrayView);
+    // Default copy constructor and assignment operator are used for using this class with STL
+    // containers.
 
-    uint8_t *const mPtr;
-    const size_t mSize;
+    // These members cannot be const to have the assignment operator.
+    uint8_t *mPtr;
+    size_t mSize;
 };
 
 } // namespace latinime
diff --git a/native/jni/src/utils/int_array_view.h b/native/jni/src/utils/int_array_view.h
index c1ddc9812..c9c3b21d4 100644
--- a/native/jni/src/utils/int_array_view.h
+++ b/native/jni/src/utils/int_array_view.h
@@ -91,6 +91,18 @@ class IntArrayView {
         return mPtr + mSize;
     }
 
+    // Returns the view whose size is smaller than or equal to the given count.
+    const IntArrayView limit(const size_t maxSize) const {
+        return IntArrayView(mPtr, std::min(maxSize, mSize));
+    }
+
+    const IntArrayView skip(const size_t n) const {
+        if (mSize <= n) {
+            return IntArrayView();
+        }
+        return IntArrayView(mPtr + n, mSize - n);
+    }
+
  private:
     DISALLOW_ASSIGNMENT_OPERATOR(IntArrayView);
 
@@ -100,6 +112,7 @@ class IntArrayView {
 
 using WordIdArrayView = IntArrayView;
 using PtNodePosArrayView = IntArrayView;
+using CodePointArrayView = IntArrayView;
 
 } // namespace latinime
 #endif // LATINIME_MEMORY_VIEW_H