From e3a5856284f358a4d26f49916af77b30a2d44512 Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Tue, 3 Mar 2020 20:16:14 +1100
Subject: [PATCH] Only replace chars >= 0 in fix_atom_text

If char is signed, the test was invalid

Fixes #3389
---
 src/display_buffer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/display_buffer.cc b/src/display_buffer.cc
index d9ff4778..d5fc8275 100644
--- a/src/display_buffer.cc
+++ b/src/display_buffer.cc
@@ -325,7 +325,7 @@ String fix_atom_text(StringView str)
     for (auto it = str.begin(), end = str.end(); it != end; ++it)
     {
         char c = *it;
-        if (c <= 0x1F)
+        if (c >= 0 and c <= 0x1F)
         {
             res += StringView{pos, it};
             res += String{Codepoint{(uint32_t)(0x2400 + c)}};