strncat.3: Implement strncat(3) in terms of strnul()

Signed-off-by: Alejandro Colomar <alx@kernel.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/man3/strncat.3 b/man3/strncat.3
index 6755bee60..a31b979ae 100644
--- a/man3/strncat.3
+++ b/man3/strncat.3
@@ -38,9 +38,10 @@ An implementation of this function might be:
 char *
 strncat(char *restrict dst, const char *restrict src, size_t ssize)
 {
+    #define strnul(s)  (s + strlen(s))
     char  *p;
 \&
-    p = mempcpy(dst + strlen(dst), src, strnlen(src, ssize));
+    p = mempcpy(strnul(dst), src, strnlen(src, ssize));
     *p = \[aq]\e0\[aq];
 \&
     return dst;