Applied nxt_pointer_to() and nxt_value_at() where possible.

src/nginext/nxt_go_array.c

@@ -57,7 +57,7 @@ nxt_go_array_add(nxt_array_t *array)
         array->nalloc = new_alloc;
     }
 
-    p = (char *) array->elts + array->size * array->nelts;
+    p = nxt_pointer_to(array->elts, array->size * array->nelts);
     array->nelts++;
 
     return p;

src/nginext/nxt_go_array.h

@@ -30,7 +30,7 @@ nxt_go_array_zero_add(nxt_array_t *array)
 
 #define                                                                       \
 nxt_go_array_at(array, n)                                                     \
-    ((void *) ((char *) (array)->elts + (array)->size * (n)))
+    nxt_pointer_to((array)->elts, (array)->size * (n))
 
 
 #endif /* _NXT_GO_ARRAY_H_INCLUDED_ */

src/nginext/nxt_go_run_ctx.c

@@ -96,8 +96,7 @@ nxt_go_ctx_init_msg(nxt_go_msg_t *msg, nxt_port_msg_t *port_msg,
 
     if (nxt_fast_path(port_msg->mmap != 0)) {
         msg->mmap_msg = (nxt_port_mmap_msg_t *) (port_msg + 1);
-        msg->end = (nxt_port_mmap_msg_t *) ( (char *) msg->mmap_msg +
-                                              payload_size );
+        msg->end = nxt_pointer_to(msg->mmap_msg, payload_size);
 
         mmap_msg = msg->mmap_msg;
         while(mmap_msg < msg->end) {