From f712af82852aa3d47022ce90d520d9a3ae0a7d9e Mon Sep 17 00:00:00 2001
From: Recolic Keghart <git@me.recolic.net>
Date: Wed, 16 Nov 2022 19:50:37 -0800
Subject: [PATCH] u

---
 changpu_v2.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/changpu_v2.cc b/changpu_v2.cc
index 28dbb7c..bdd6236 100644
--- a/changpu_v2.cc
+++ b/changpu_v2.cc
@@ -16,7 +16,7 @@ inline char basic_int_to_char(uint8_t i) {
 }
 inline uint8_t basic_char_to_int(char c) {
     constexpr auto ls {"xA234567890JQK"sv};
-    return ls.find(c);
+    return ls.find(toupper(c));
 }
 
 // This function is only efficent on small string.
-- 
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