From f8a14e86d8db56e8ad7046b8848c7521d235a777 Mon Sep 17 00:00:00 2001
From: Matt Woenker <matt@clickhouse.com>
Date: Wed, 7 Aug 2024 16:32:13 -0400
Subject: [PATCH] Add const a few places

---
 src/IO/WriteBufferValidUTF8.cpp | 8 ++++----
 src/IO/WriteBufferValidUTF8.h   | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/IO/WriteBufferValidUTF8.cpp b/src/IO/WriteBufferValidUTF8.cpp
index 25c7b3d4820..2a86f8c2801 100644
--- a/src/IO/WriteBufferValidUTF8.cpp
+++ b/src/IO/WriteBufferValidUTF8.cpp
@@ -54,7 +54,7 @@ inline void WriteBufferValidUTF8::putReplacement()
 }
 
 
-inline void WriteBufferValidUTF8::putValid(char *data, size_t len)
+inline void WriteBufferValidUTF8::putValid(const char *data, size_t len)
 {
     if (len == 0)
         return;
@@ -152,18 +152,18 @@ void WriteBufferValidUTF8::finalizeImpl()
     /// Handle remaining bytes if we have an incomplete sequence
     if (working_buffer.begin() != memory.data())
     {
-        char * p = memory.data();
+        const char * p = memory.data();
 
         while (p < pos)
         {
-            UInt8 len = length_of_utf8_sequence[static_cast<unsigned char>(*p)];
+            UInt8 len = length_of_utf8_sequence[static_cast<const unsigned char>(*p)];
             if (p + len > pos)
             {
                 /// Incomplete sequence. Skip one byte.
                 putReplacement();
                 ++p;
             }
-            else if (Poco::UTF8Encoding::isLegal(reinterpret_cast<unsigned char *>(p), len))
+            else if (Poco::UTF8Encoding::isLegal(reinterpret_cast<const unsigned char *>(p), len))
             {
                 /// Valid sequence
                 putValid(p, len);
diff --git a/src/IO/WriteBufferValidUTF8.h b/src/IO/WriteBufferValidUTF8.h
index daaf0427f88..a398b8ded01 100644
--- a/src/IO/WriteBufferValidUTF8.h
+++ b/src/IO/WriteBufferValidUTF8.h
@@ -26,7 +26,7 @@ public:
 
 private:
     void putReplacement();
-    void putValid(char * data, size_t len);
+    void putValid(const char * data, size_t len);
 
     void nextImpl() override;
     void finalizeImpl() override;