[src/trunk]: src/common/lib/libc/string Cast the fill value to unsigned char ...

[simonb <simonb%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/963fbc8d2513
branches:  trunk
changeset: 378562:963fbc8d2513
user:      simonb <simonb%NetBSD.org@localhost>
date:      Sat Apr 17 06:02:35 2021 +0000

description:
Cast the fill value to unsigned char so that the "fill" value used for
full-word fills isn't garbage.

diffstat:

 common/lib/libc/string/memset2.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (21 lines):

diff -r 286e675e71cd -r 963fbc8d2513 common/lib/libc/string/memset2.c
--- a/common/lib/libc/string/memset2.c  Sat Apr 17 05:57:11 2021 +0000
+++ b/common/lib/libc/string/memset2.c  Sat Apr 17 06:02:35 2021 +0000
@@ -29,7 +29,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: memset2.c,v 1.6 2021/04/17 05:57:11 simonb Exp $");
+__RCSID("$NetBSD: memset2.c,v 1.7 2021/04/17 06:02:35 simonb Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -97,7 +97,7 @@ memset(void *addr, int c, size_t len)
         * The conditional at the end prevents GCC from complaing about
         * shift count >= width of type 
         */
-       fill = c;
+       fill = (unsigned char)c;
        fill |= fill << 8;
        fill |= fill << 16;
        fill |= fill << (sizeof(c) < sizeof(fill) ? 32 : 0);