From fd51c9b27eb3aa695d664712c33421d83b8071e0 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 24 Mar 2009 01:17:33 +0000
Subject: [PATCH] better assertions

---
 panda/src/express/pointerToArray.I | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/panda/src/express/pointerToArray.I b/panda/src/express/pointerToArray.I
index 032972d174..6f95abe1bd 100644
--- a/panda/src/express/pointerToArray.I
+++ b/panda/src/express/pointerToArray.I
@@ -566,6 +566,10 @@ template<class Element>
 INLINE void PointerToArray<Element>::
 set_subdata(size_type n, size_type count, const string &data) {
   nassertv((data.length() % sizeof(Element)) == 0);
+  nassertv(n <= size() && n + count <= size());
+  nassertd((this->_void_ptr) != NULL) {
+    ((PointerToArray<Element> *)this)->reassign(new ReferenceCountedVector<Element>(_type_handle));
+  }
   size_type ncount = data.length() / sizeof(Element);
   if (ncount < count) {
     // Reduce the array.