From cdbbe006075d69dbb7b32c077333b5fa6a13b9d7 Mon Sep 17 00:00:00 2001
From: Florin Iucha <florin@signbit.net>
Date: Thu, 2 Jul 2020 10:51:30 -0400
Subject: [PATCH] Fix a conversion warning with Clang10 on Windows

Fixes #1747
---
 include/fmt/format.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/fmt/format.h b/include/fmt/format.h
index 7bd6543c3f78..751e19ad1707 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -566,7 +566,7 @@ template <typename U>
 void buffer<T>::append(const U* begin, const U* end) {
   size_t new_size = size_ + to_unsigned(end - begin);
   reserve(new_size);
-  std::uninitialized_copy(begin, end, make_checked(ptr_, capacity_) + size_);
+  std::uninitialized_copy(begin, end, make_checked(ptr_ + size_, capacity_ - size_));
   size_ = new_size;
 }
 }  // namespace detail