From 9216b96b4117009c75214bcc8aca048d472d2d14 Mon Sep 17 00:00:00 2001
From: YoongHM <yoonghm@users.noreply.github.com>
Date: Mon, 21 Sep 2020 22:04:34 +0800
Subject: [PATCH] Fix compilation warning in jemalloc's malloc_vsnprintf
 (#7789)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Change `val` to `unsigned char` before being tested.
The fix is identical to the one that's been made in upstream jemalloc.

warning is:
src/malloc_io.c: In function ‘malloc_vsnprintf’:
src/malloc_io.c:369:2: warning: case label value exceeds maximum value for type
  369 |  case '?' | 0x80:      \
      |  ^~~~
src/malloc_io.c:581:5: note: in expansion of macro ‘GET_ARG_NUMERIC’
  581 |     GET_ARG_NUMERIC(val, 'p');
      |     ^~~~~~~~~~~~~~~
---
 deps/jemalloc/src/malloc_io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/deps/jemalloc/src/malloc_io.c b/deps/jemalloc/src/malloc_io.c
index 7bdc13f95..dd8826511 100644
--- a/deps/jemalloc/src/malloc_io.c
+++ b/deps/jemalloc/src/malloc_io.c
@@ -362,7 +362,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
 	}								\
 } while (0)
 #define GET_ARG_NUMERIC(val, len) do {					\
-	switch (len) {							\
+	switch ((unsigned char)len) {					\
 	case '?':							\
 		val = va_arg(ap, int);					\
 		break;							\