Optimize a bit by using mempcpy.

Correct condition to leave the loop.

diff --git a/sysdeps/posix/writev.c b/sysdeps/posix/writev.c
index f6f685c..ae38fef 100644 (file)
--- a/sysdeps/posix/writev.c
+++ b/sysdeps/posix/writev.c
@@ -53,11 +53,10 @@ __writev (fd, vector, count)
 #define        min(a, b)       ((a) > (b) ? (b) : (a))
       size_t copy = min (vector[i].iov_len, to_copy);
 
-      (void) memcpy ((void *) bp, (void *) vector[i].iov_base, copy);
+      bp = __mempcpy ((void *) bp, (void *) vector[i].iov_base, copy);
 
-      bp += copy;
       to_copy -= copy;
-      if (bytes == 0)
+      if (to_copy == 0)
        break;
     }