From a503fa927cc8a1702cbc7f04e10a205ccc8bc662 Mon Sep 17 00:00:00 2001
From: liuping <369990632@qq.com>
Date: Tue, 4 Dec 2018 20:05:03 +0800
Subject: [PATCH] Fix ambiguous complier error C2666 in vs2017.The '+' opeator
 may cause ambiguity.Avoid implicit conversion.

---
 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 f0a6b6b322f2..0d76ab6155a7 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -2975,7 +2975,7 @@ class format_int {
 
   // Formats value in reverse and returns a pointer to the beginning.
   char *format_decimal(unsigned long long value) {
-    char *ptr = buffer_ + BUFFER_SIZE - 1;
+    char *ptr = buffer_ + static_cast<unsigned>(BUFFER_SIZE) - 1;
     while (value >= 100) {
       // Integer division is slow so do it for a group of two digits instead
       // of for every digit. The idea comes from the talk by Alexandrescu