diff --git a/java/res/layout/emoji_palettes_view.xml b/java/res/layout/emoji_palettes_view.xml
index 4fb744e..ef565a4 100644
--- a/java/res/layout/emoji_palettes_view.xml
+++ b/java/res/layout/emoji_palettes_view.xml
@@ -73,7 +73,7 @@
             android:background="@color/emoji_key_background_color"
             android:src="@drawable/sym_keyboard_delete_holo_dark" />
     </LinearLayout>
-    <com.android.inputmethod.keyboard.internal.CustomViewPager
+    <android.support.v4.view.ViewPager
         android:id="@+id/emoji_keyboard_pager"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
diff --git a/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java b/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
index 7e21667..4edc616 100644
--- a/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
+++ b/java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java
@@ -518,6 +518,14 @@
     }
 
     @Override
+    public boolean dispatchTouchEvent(final MotionEvent ev) {
+        // Add here to the stack trace to nail down the {@link IllegalArgumentException} exception
+        // in MotionEvent that sporadically happens.
+        // TODO: Remove this override method once the issue has been addressed.
+        return super.dispatchTouchEvent(ev);
+    }
+
+    @Override
     public void onTabChanged(final String tabId) {
         final int categoryId = mEmojiCategory.getCategoryId(tabId);
         setCurrentCategoryId(categoryId, false /* force */);
diff --git a/java/src/com/android/inputmethod/keyboard/internal/CustomViewPager.java b/java/src/com/android/inputmethod/keyboard/internal/CustomViewPager.java
deleted file mode 100644
index f5cc45c..0000000
--- a/java/src/com/android/inputmethod/keyboard/internal/CustomViewPager.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.inputmethod.keyboard.internal;
-
-import android.content.Context;
-import android.support.v4.view.ViewPager;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.MotionEvent;
-
-/**
- * Custom view pager to prevent {@link ViewPager} from crashing while handling multi-touch
- * event.
- */
-public class CustomViewPager extends ViewPager {
-    private static final String TAG = CustomViewPager.class.getSimpleName();
-
-    public CustomViewPager(final Context context, final AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    @Override
-    public boolean onInterceptTouchEvent(final MotionEvent event) {
-        // This only happens when you multi-touch, take the first finger off and move.
-        // Unfortunately this causes {@link ViewPager} to crash, so we will ignore such events.
-        if (event.getAction() == MotionEvent.ACTION_MOVE && event.getPointerId(0) != 0) {
-            Log.w(TAG, "Ignored multi-touch move event to prevent ViewPager from crashing");
-            return false;
-        }
-
-        return super.onInterceptTouchEvent(event);
-    }
-}
diff --git a/native/jni/src/suggest/core/dicnode/dic_nodes_cache.h b/native/jni/src/suggest/core/dicnode/dic_nodes_cache.h
index 089d446..fb76c73 100644
--- a/native/jni/src/suggest/core/dicnode/dic_nodes_cache.h
+++ b/native/jni/src/suggest/core/dicnode/dic_nodes_cache.h
@@ -18,7 +18,6 @@
 #define LATINIME_DIC_NODES_CACHE_H
 
 #include <algorithm>
-#include <stdint.h>
 
 #include "defines.h"
 #include "suggest/core/dicnode/dic_node_priority_queue.h"
diff --git a/native/jni/src/suggest/core/dicnode/internal/dic_node_properties.h b/native/jni/src/suggest/core/dicnode/internal/dic_node_properties.h
index 6ddb7f1..11f8c29 100644
--- a/native/jni/src/suggest/core/dicnode/internal/dic_node_properties.h
+++ b/native/jni/src/suggest/core/dicnode/internal/dic_node_properties.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_DIC_NODE_PROPERTIES_H
 #define LATINIME_DIC_NODE_PROPERTIES_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/core/dicnode/internal/dic_node_state_output.h b/native/jni/src/suggest/core/dicnode/internal/dic_node_state_output.h
index ea48de1..69a886f 100644
--- a/native/jni/src/suggest/core/dicnode/internal/dic_node_state_output.h
+++ b/native/jni/src/suggest/core/dicnode/internal/dic_node_state_output.h
@@ -18,8 +18,8 @@
 #define LATINIME_DIC_NODE_STATE_OUTPUT_H
 
 #include <algorithm>
+#include <cstdint>
 #include <cstring> // for memmove()
-#include <stdint.h>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/core/dicnode/internal/dic_node_state_scoring.h b/native/jni/src/suggest/core/dicnode/internal/dic_node_state_scoring.h
index f164edb..c19d48e 100644
--- a/native/jni/src/suggest/core/dicnode/internal/dic_node_state_scoring.h
+++ b/native/jni/src/suggest/core/dicnode/internal/dic_node_state_scoring.h
@@ -18,7 +18,7 @@
 #define LATINIME_DIC_NODE_STATE_SCORING_H
 
 #include <algorithm>
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/dictionary/digraph_utils.h"
diff --git a/native/jni/src/suggest/core/dictionary/bloom_filter.h b/native/jni/src/suggest/core/dictionary/bloom_filter.h
index e22c3ae..85b8fc3 100644
--- a/native/jni/src/suggest/core/dictionary/bloom_filter.h
+++ b/native/jni/src/suggest/core/dictionary/bloom_filter.h
@@ -17,8 +17,8 @@
 #ifndef LATINIME_BLOOM_FILTER_H
 #define LATINIME_BLOOM_FILTER_H
 
+#include <cstdint>
 #include <cstring>
-#include <stdint.h>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/core/dictionary/dictionary.cpp b/native/jni/src/suggest/core/dictionary/dictionary.cpp
index ef7a0a8..8445da3 100644
--- a/native/jni/src/suggest/core/dictionary/dictionary.cpp
+++ b/native/jni/src/suggest/core/dictionary/dictionary.cpp
@@ -18,8 +18,6 @@
 
 #include "suggest/core/dictionary/dictionary.h"
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/core/policy/dictionary_header_structure_policy.h"
 #include "suggest/core/result/suggestion_results.h"
diff --git a/native/jni/src/suggest/core/dictionary/dictionary.h b/native/jni/src/suggest/core/dictionary/dictionary.h
index cd983b0..a134516 100644
--- a/native/jni/src/suggest/core/dictionary/dictionary.h
+++ b/native/jni/src/suggest/core/dictionary/dictionary.h
@@ -17,7 +17,6 @@
 #ifndef LATINIME_DICTIONARY_H
 #define LATINIME_DICTIONARY_H
 
-#include <stdint.h>
 #include <memory>
 
 #include "defines.h"
diff --git a/native/jni/src/suggest/core/dictionary/error_type_utils.h b/native/jni/src/suggest/core/dictionary/error_type_utils.h
index cc77867..0e8e5b6 100644
--- a/native/jni/src/suggest/core/dictionary/error_type_utils.h
+++ b/native/jni/src/suggest/core/dictionary/error_type_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_ERROR_TYPE_UTILS_H
 #define LATINIME_ERROR_TYPE_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/core/session/dic_traverse_session.h b/native/jni/src/suggest/core/session/dic_traverse_session.h
index 9e5d902..843ca85 100644
--- a/native/jni/src/suggest/core/session/dic_traverse_session.h
+++ b/native/jni/src/suggest/core/session/dic_traverse_session.h
@@ -17,7 +17,6 @@
 #ifndef LATINIME_DIC_TRAVERSE_SESSION_H
 #define LATINIME_DIC_TRAVERSE_SESSION_H
 
-#include <stdint.h>
 #include <vector>
 
 #include "defines.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_policy.h b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_policy.h
index 6ff95ca..a898e2a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_policy.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_BIGRAM_LIST_POLICY_H
 #define LATINIME_BIGRAM_LIST_POLICY_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/policy/dictionary_bigrams_structure_policy.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h
index 7e10383..15f924a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h
@@ -17,8 +17,8 @@
 #ifndef LATINIME_BIGRAM_LIST_READ_WRITE_UTILS_H
 #define LATINIME_BIGRAM_LIST_READ_WRITE_UTILS_H
 
+#include <cstdint>
 #include <cstdlib>
-#include <stdint.h>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
index 6682424..f950cad 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_HEADER_POLICY_H
 #define LATINIME_HEADER_POLICY_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/policy/dictionary_header_structure_policy.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
index 4185a2e..a6b4c4e 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_HEADER_READ_WRITE_UTILS_H
 #define LATINIME_HEADER_READ_WRITE_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/policy/dictionary_header_structure_policy.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_policy.h b/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_policy.h
index d73f739..6d2b477 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_policy.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_SHORTCUT_LIST_POLICY_H
 #define LATINIME_SHORTCUT_LIST_POLICY_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/policy/dictionary_shortcuts_structure_policy.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_reading_utils.h
index a83ed5a..d065bf7 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_reading_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/shortcut/shortcut_list_reading_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_SHORTCUT_LIST_READING_UTILS_H
 #define LATINIME_SHORTCUT_LIST_READING_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/shortcut/ver4_shortcut_list_policy.h b/native/jni/src/suggest/policyimpl/dictionary/shortcut/ver4_shortcut_list_policy.h
index f2fa5b7..fe98461 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/shortcut/ver4_shortcut_list_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/shortcut/ver4_shortcut_list_policy.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_VER4_SHORTCUT_LIST_POLICY_H
 #define LATINIME_VER4_SHORTCUT_LIST_POLICY_H
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/core/policy/dictionary_shortcuts_structure_policy.h"
 #include "suggest/policyimpl/dictionary/shortcut/shortcut_list_reading_utils.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
index 79bcf6f..5f19534 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
@@ -17,7 +17,6 @@
 #include "suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h"
 
 #include <climits>
-#include <stdint.h>
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h
index 9454ddf..6053b7e 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_DICTIONARY_STRUCTURE_WITH_BUFFER_POLICY_FACTORY_H
 #define LATINIME_DICTIONARY_STRUCTURE_WITH_BUFFER_POLICY_FACTORY_H
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/core/policy/dictionary_structure_with_buffer_policy.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h
index 89ae12c..b13a075 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_DYNAMIC_PT_READING_UTILS_H
 #define LATINIME_DYNAMIC_PT_READING_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
index 71f4730..f703baf 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_DYNAMIC_PT_UPDATING_HELPER_H
 #define LATINIME_DYNAMIC_PT_UPDATING_HELPER_H
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h"
 #include "utils/hash_map_compat.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.cpp
index ebbdc2e..664aeeb 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.cpp
@@ -17,8 +17,8 @@
 #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h"
 
 #include <cstddef>
+#include <cstdint>
 #include <cstdlib>
-#include <stdint.h>
 
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
index 11a40de..79500b9 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_PATRICIA_TRIE_POLICY_H
 #define LATINIME_PATRICIA_TRIE_POLICY_H
 
-#include <stdint.h>
+#include <cstdint>
 #include <vector>
 
 #include "defines.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h
index fa1430c..a6090a5 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_PATRICIA_TRIE_READING_UTILS_H
 #define LATINIME_PATRICIA_TRIE_READING_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_patricia_trie_node_reader.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_patricia_trie_node_reader.h
index dd1a0da..86fc89c 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_patricia_trie_node_reader.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_patricia_trie_node_reader.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_VER2_PATRICIA_TRIE_NODE_READER_H
 #define LATINIME_VER2_PATRICIA_TRIE_NODE_READER_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_pt_node_array_reader.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_pt_node_array_reader.h
index 77404ad..5482721 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_pt_node_array_reader.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/ver2_pt_node_array_reader.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_VER2_PT_NODE_ARRAY_READER_H
 #define LATINIME_VER2_PT_NODE_ARRAY_READER_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_reader.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_reader.h
index 1db9ea0..f24307e 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_reader.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_reader.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_VER4_PATRICIA_TRIE_NODE_READER_H
 #define LATINIME_VER4_PATRICIA_TRIE_NODE_READER_H
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_reader.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.h
index f01b3af..b2b0504 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_VER4_PATRICIA_TRIE_NODE_WRITER_H
 #define LATINIME_VER4_PATRICIA_TRIE_NODE_WRITER_H
 
-#include <stdint.h>
-
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_helper.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.h
index e418c49..466ff55 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_reading_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_VER4_PATRICIA_TRIE_READING_UTILS_H
 #define LATINIME_VER4_PATRICIA_TRIE_READING_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h b/native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h
index 76be165..23cbe3a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h
@@ -18,7 +18,7 @@
 #define LATINIME_BUFFER_WITH_EXTENDABLE_BUFFER_H
 
 #include <cstddef>
-#include <stdint.h>
+#include <cstdint>
 #include <vector>
 
 #include "defines.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/byte_array_utils.h b/native/jni/src/suggest/policyimpl/dictionary/utils/byte_array_utils.h
index ebdd523..c0a9fcb 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/byte_array_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/byte_array_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_BYTE_ARRAY_UTILS_H
 #define LATINIME_BYTE_ARRAY_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/format_utils.h b/native/jni/src/suggest/policyimpl/dictionary/utils/format_utils.h
index 7c6a21d..759b1c9 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/format_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/format_utils.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_FORMAT_UTILS_H
 #define LATINIME_FORMAT_UTILS_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.h b/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.h
index f73716c..8460087 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.h
@@ -17,8 +17,8 @@
 #ifndef LATINIME_MMAPPED_BUFFER_H
 #define LATINIME_MMAPPED_BUFFER_H
 
+#include <cstdint>
 #include <memory>
-#include <stdint.h>
 
 #include "defines.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/probability_utils.h b/native/jni/src/suggest/policyimpl/dictionary/utils/probability_utils.h
index 14fdf53..3b339e6 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/probability_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/probability_utils.h
@@ -17,8 +17,6 @@
 #ifndef LATINIME_PROBABILITY_UTILS_H
 #define LATINIME_PROBABILITY_UTILS_H
 
-#include <stdint.h>
-
 #include "defines.h"
 
 namespace latinime {
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.h b/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.h
index 21c1675..fca8120 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/sparse_table.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_SPARSE_TABLE_H
 #define LATINIME_SPARSE_TABLE_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
diff --git a/native/jni/src/suggest/policyimpl/typing/typing_traversal.h b/native/jni/src/suggest/policyimpl/typing/typing_traversal.h
index 7c86b7d..5ba8bfa 100644
--- a/native/jni/src/suggest/policyimpl/typing/typing_traversal.h
+++ b/native/jni/src/suggest/policyimpl/typing/typing_traversal.h
@@ -17,7 +17,7 @@
 #ifndef LATINIME_TYPING_TRAVERSAL_H
 #define LATINIME_TYPING_TRAVERSAL_H
 
-#include <stdint.h>
+#include <cstdint>
 
 #include "defines.h"
 #include "suggest/core/dicnode/dic_node.h"