From 8997021b2e43f61b6120ecce80b8097c3c451a48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?louiz=E2=80=99?= <louiz@louiz.org>
Date: Thu, 23 Aug 2018 21:28:06 +0200
Subject: Fix two more warnings

---
 src/utils/string.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/utils/string.cpp b/src/utils/string.cpp
index 635e71a..366ec1f 100644
--- a/src/utils/string.cpp
+++ b/src/utils/string.cpp
@@ -15,11 +15,11 @@ std::vector<std::string> cut(const std::string& val, const std::size_t size)
       // Get the number of chars, <= size, that contain only whole
       // UTF-8 codepoints.
       std::size_t s = 0;
-      auto codepoint_size = utils::get_next_codepoint_size(val[pos + s]);
+      auto codepoint_size = utils::get_next_codepoint_size(static_cast<unsigned char>(val[pos + s]));
       while (s + codepoint_size <= size && pos + s < val.size())
         {
           s += codepoint_size;
-          codepoint_size = utils::get_next_codepoint_size(val[pos + s]);
+          codepoint_size = utils::get_next_codepoint_size(static_cast<unsigned char>(val[pos + s]));
         }
       res.emplace_back(val.substr(pos, s));
       pos += s;
-- 
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