[newlib-cygwin/main] memccpy: fix pointer assignment

[Corinna Vinschen <corinna@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=422c4f0451ccaff9aa38ee86d5d860f41c7bf9ef

commit 422c4f0451ccaff9aa38ee86d5d860f41c7bf9ef
Author:     Corinna Vinschen <corinna@vinschen.de>
AuthorDate: Fri Jan 19 11:28:11 2024 +0100
Commit:     Corinna Vinschen <corinna@vinschen.de>
CommitDate: Fri Jan 19 11:51:01 2024 +0100

    memccpy: fix pointer assignment
    
    The local vars dst and src are unsigned pointers, but two assignments
    cast their value to signed explicitely.  This results in the warning
    "pointer targets in assignment from ‘char *’ to ‘unsigned char *’
    differ in signedness [-Wpointer-sign]" in case of -Wall.
    
    Fix the cast.
    
    Fixes: d254189b38bb ("2002-07-23  Jeff Johnston  <jjohnstn@redhat.com>")
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 newlib/libc/string/memccpy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/newlib/libc/string/memccpy.c b/newlib/libc/string/memccpy.c
index 6757cb34cb2d..d6b2f8beabe1 100644
--- a/newlib/libc/string/memccpy.c
+++ b/newlib/libc/string/memccpy.c
@@ -118,8 +118,8 @@ memccpy (void *__restrict dst0,
         }
 
        /* Pick up any residual with a byte copier.  */
-      dst = (char*)aligned_dst;
-      src = (char*)aligned_src;
+      dst = (unsigned char*)aligned_dst;
+      src = (unsigned char*)aligned_src;
     }
 
   while (len0--)