From cb86da71fa19e8ff9dbf2661d65ead74c39ecd03 Mon Sep 17 00:00:00 2001
From: Daniel Pouzzner <douzzer@wolfssl.com>
Date: Sat, 8 Jan 2022 00:34:22 -0600
Subject: [PATCH] wolfssl/wolfcrypt/ecc.h: fixes for cppcheck complaints:
 preprocessorErrorDirective[division/modulo by zero]

---
 wolfssl/wolfcrypt/ecc.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/wolfssl/wolfcrypt/ecc.h b/wolfssl/wolfcrypt/ecc.h
index 111bff40f..8aa5dded3 100644
--- a/wolfssl/wolfcrypt/ecc.h
+++ b/wolfssl/wolfcrypt/ecc.h
@@ -359,6 +359,9 @@ typedef struct ecc_set_type {
 #endif
 
 /* verify alignment */
+#if CHAR_BIT == 0
+   #error CHAR_BIT must be nonzero
+#endif
 #if FP_MAX_BITS_ECC % CHAR_BIT
     #error FP_MAX_BITS_ECC must be a multiple of CHAR_BIT
 #endif