1 files changed, 24 insertions, 4 deletions
diff --git a/native/jni/src/utils/int_array_view.h b/native/jni/src/utils/int_array_view.h
index c1ddc9812..c39add9fe 100644
--- a/native/jni/src/utils/int_array_view.h
+++ b/native/jni/src/utils/int_array_view.h
@@ -17,8 +17,9 @@
 #ifndef LATINIME_INT_ARRAY_VIEW_H
 #define LATINIME_INT_ARRAY_VIEW_H
 
+#include <array>
 #include <cstdint>
-#include <cstdlib>
+#include <cstring>
 #include <vector>
 
 #include "defines.h"
@@ -61,9 +62,9 @@ class IntArrayView {
         return IntArrayView(array, N);
     }
 
-    // Returns a view that points one int object. Does not take ownership of the given object.
-    AK_FORCE_INLINE static IntArrayView fromObject(const int *const object) {
-        return IntArrayView(object, 1);
+    // Returns a view that points one int object.
+    AK_FORCE_INLINE static IntArrayView singleElementView(const int *const ptr) {
+        return IntArrayView(ptr, 1);
     }
 
     AK_FORCE_INLINE int operator[](const size_t index) const {
@@ -91,6 +92,24 @@ 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);
+    }
+
+    template <size_t N>
+    void copyToArray(std::array<int, N> *const buffer, const size_t offset) const {
+        ASSERT(mSize + offset <= N);
+        memmove(buffer->data() + offset, mPtr, sizeof(int) * mSize);
+    }
+
  private:
     DISALLOW_ASSIGNMENT_OPERATOR(IntArrayView);
 
@@ -100,6 +119,7 @@ class IntArrayView {
 
 using WordIdArrayView = IntArrayView;
 using PtNodePosArrayView = IntArrayView;
+using CodePointArrayView = IntArrayView;
 
 } // namespace latinime
 #endif // LATINIME_MEMORY_VIEW_H