fix strncat and wcsncat (double null termination)

also modify wcsncpy to use the same loop logic

1 files changed, 1 insertions, 1 deletions

diff --git a/src/string/wcsncat.c b/src/string/wcsncat.c
index b07abe45..9d61bbbd 100644
--- a/src/string/wcsncat.c
+++ b/src/string/wcsncat.c
@@ -4,7 +4,7 @@ wchar_t *wcsncat(wchar_t *d, const wchar_t *s, size_t n)
 {
 	wchar_t *a = d;
 	d += wcslen(d);
-	while (n && (*d++ = *s++)) n--;
+	while (n && *s) n--, *d++ = *s++;
 	*d++ = 0;
 	return a;
 }