From 7909fc43507a0e352ad7b7c9ced60ef154a69f62 Mon Sep 17 00:00:00 2001
From: suda-morris <362953310@qq.com>
Date: Sun, 13 Sep 2026 21:29:22 +0800
Subject: [PATCH] fix(cbortojson): keep strchr() result const for C23

GCC in C23 mode gives strchr() the const of its argument, so assigning
the result into a char * is -Wdiscarded-qualifiers. That becomes a build
error under -Werror. esc is only used as a pointer into the const
escapeChars table, so const is correct.
---
 src/cbortojson.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cbortojson.c b/src/cbortojson.c
index 9a1cccfd..58de1b17 100644
--- a/src/cbortojson.c
+++ b/src/cbortojson.c
@@ -341,7 +341,7 @@ static CborError escape_text_string(char **str, size_t *alloc, size_t *offsetp,
         static const char escapedChars[] = "btnrf\"\\";
         unsigned char c = input[i];
 
-        char *esc = c > 0 ? strchr(escapeChars, c) : NULL;
+        const char *esc = c > 0 ? strchr(escapeChars, c) : NULL;
         if (esc) {
             buf[offset++] = '\\';
             buf[offset++] = escapedChars[esc - escapeChars];