From 4392f4b538a2f9ee3a0465132a0e77a5735dcd40 Mon Sep 17 00:00:00 2001
From: Lubos Dolezel <lubos@dolezel.info>
Date: Sat, 13 Jul 2019 20:10:20 +0200
Subject: [PATCH] Fix char signedness in DMap

---
 include/jwt/base64.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/jwt/base64.hpp b/include/jwt/base64.hpp
index 4cb28d7..248b10c 100644
--- a/include/jwt/base64.hpp
+++ b/include/jwt/base64.hpp
@@ -153,7 +153,7 @@ public:
   constexpr DMap() = default;
 
 public:
-  constexpr char at(size_t pos) const noexcept
+  constexpr signed char at(size_t pos) const noexcept
   {
     return X_ASSERT(pos < map_.size()), map_[pos];
   }