--- a/src/core/ngx_array.c
+++ b/src/core/ngx_array.c
@@ -2,19 +2,17 @@
 #include <ngx_config.h>
 
 #include <ngx_alloc.h>
+#include <ngx_string.h>
 #include <ngx_array.h>
 
+
 ngx_array_t *ngx_create_array(ngx_pool_t *p, int n, size_t size)
 {
     ngx_array_t *a;
 
-    a = ngx_palloc(p, sizeof(ngx_array_t));
-    if (a == NULL)
-        return NULL;
+    ngx_test_null(a, ngx_palloc(p, sizeof(ngx_array_t)), NULL);
 
-    a->elts = ngx_palloc(p, n * size);
-    if (a->elts == NULL)
-        return NULL;
+    ngx_test_null(a->elts, ngx_palloc(p, n * size), NULL);
 
     a->pool = p;
     a->nelts = 0;
@@ -24,24 +22,31 @@ ngx_array_t *ngx_create_array(ngx_pool_t
     return a;
 }
 
+
 void ngx_destroy_array(ngx_array_t *a)
 {
-    ngx_pool_t *p = a->pool;
+    ngx_pool_t  *p;
 
-    if (a->elts + a->size * a->nalloc == p->last)
+    p = a->pool;
+
+    if (a->elts + a->size * a->nalloc == p->last) {
         p->last -= a->size * a->nalloc;
+    }
 
-    if ((char *) a + sizeof(ngx_array_t) == p->last)
+    if ((char *) a + sizeof(ngx_array_t) == p->last) {
         p->last = (char *) a;
+    }
 }
 
+
 void *ngx_push_array(ngx_array_t *a)
 {
-    void *elt;
+    void        *elt, *new;
+    ngx_pool_t  *p;
 
     /* array is full */
     if (a->nelts == a->nalloc) {
-        ngx_pool_t *p = a->pool;
+        p = a->pool;
 
         /* array allocation is the last in the pool */
         if (a->elts + a->size * a->nelts == p->last
@@ -52,11 +57,9 @@ void *ngx_push_array(ngx_array_t *a)
 
         /* allocate new array */
         } else {
-            void *new = ngx_palloc(p, 2 * a->nalloc * a->size);
-            if (new == NULL)
-                return NULL;
+            ngx_test_null(new, ngx_palloc(p, 2 * a->nalloc * a->size), NULL);
 
-            memcpy(new, a->elts, a->nalloc * a->size);
+            ngx_memcpy(new, a->elts, a->nalloc * a->size);
             a->elts = new;
             a->nalloc *= 2;
         }