[libc-commits] [libc] [libc] Fix erroenous warning on GCC (PR #101520)

[Joseph Huber via libc-commits]

https://github.com/jhuber6 created https://github.com/llvm/llvm-project/pull/101520

None

>From a6c57258ca33b3aaabd14ae4d2fda5b58fe1d7b7 Mon Sep 17 00:00:00 2001
From: Joseph Huber <huberjn at outlook.com>
Date: Thu, 1 Aug 2024 12:02:44 -0500
Subject: [PATCH] [libc] Fix erroenous warning on GCC

---
 libc/src/stdio/printf_core/writer.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libc/src/stdio/printf_core/writer.h b/libc/src/stdio/printf_core/writer.h
index 7dfdea2c5bc40..5526a478ea620 100644
--- a/libc/src/stdio/printf_core/writer.h
+++ b/libc/src/stdio/printf_core/writer.h
@@ -100,6 +100,7 @@ struct WriteBuffer {
     case WriteMode::RESIZE_AND_FILL_BUFF:
       return resize_and_write(new_str);
     }
+    __builtin_unreachable();
   }
 };