From 019c0bb376b5c5bd13348675bc731f35296eb321 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 25 Jun 2018 02:27:07 +0300
Subject: [PATCH] Make BufferRaw buffer unsigned.

GitOrigin-RevId: 5d4f8faaa1806c3b035cd44ef9cd3f5111d93abf
---
 tdutils/td/utils/buffer.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tdutils/td/utils/buffer.h b/tdutils/td/utils/buffer.h
index aa4ef8db..857c388d 100644
--- a/tdutils/td/utils/buffer.h
+++ b/tdutils/td/utils/buffer.h
@@ -33,7 +33,7 @@ struct BufferRaw {
   std::atomic<bool> has_writer_;
   bool was_reader_;
 
-  alignas(4) char data_[1];
+  alignas(4) unsigned char data_[1];
 };
 
 class BufferAllocator {
@@ -174,8 +174,8 @@ class BufferSlice {
 
   BufferSlice from_slice(Slice slice) const {
     auto res = BufferSlice(BufferAllocator::create_reader(buffer_));
-    res.begin_ = slice.begin() - buffer_->data_;
-    res.end_ = slice.end() - buffer_->data_;
+    res.begin_ = static_cast<size_t>(slice.ubegin() - buffer_->data_);
+    res.end_ = static_cast<size_t>(slice.uend() - buffer_->data_);
     CHECK(buffer_->begin_ <= res.begin_);
     CHECK(res.begin_ <= res.end_);
     CHECK(res.end_ <= buffer_->end_.load(std::memory_order_relaxed));