diff --git a/WINGs/array.c b/WINGs/array.c
index 0b5be944..df52358d 100644
--- a/WINGs/array.c
+++ b/WINGs/array.c
@@ -126,11 +126,11 @@ void WMAddToArray(WMArray * array, void *item)
 
 void WMInsertInArray(WMArray * array, int index, void *item)
 {
-	wassertr(array && index >= 0 && index <= array->itemCount);
-
 	if (array == NULL)
 		return;
 
+	wassertr(index >= 0 && index <= array->itemCount);
+
 	if (array->itemCount >= array->allocSize) {
 		array->allocSize += RESIZE_INCREMENT;
 		array->items = wrealloc(array->items, sizeof(void *) * array->allocSize);
@@ -148,11 +148,11 @@ void *WMReplaceInArray(WMArray * array, int index, void *item)
 {
 	void *old;
 
-	wassertrv(array && index >= 0 && index <= array->itemCount, NULL);
-
 	if (array == NULL)
 		return NULL;
 
+	wassertrv(index >= 0 && index <= array->itemCount, NULL);
+
 	/* is it really useful to perform append if index == array->itemCount ? -Dan */
 	if (index == array->itemCount) {
 		WMAddToArray(array, item);
@@ -167,11 +167,11 @@ void *WMReplaceInArray(WMArray * array, int index, void *item)
 
 int WMDeleteFromArray(WMArray * array, int index)
 {
-	wassertrv(array && index >= 0 && index < array->itemCount, 0);
-
 	if (array == NULL)
 		return 0;
 
+	wassertrv(index >= 0 && index < array->itemCount, 0);
+
 	if (array->destructor) {
 		array->destructor(array->items[index]);
 	}