From e5f504b6c5dc34337cc0b316b4a7b1fca7e614b1 Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Sat, 17 Aug 2019 22:13:37 -0400
Subject: Use SparseOHArray in QPDF_Array

---
 include/qpdf/QPDFObjectHandle.hh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/qpdf/QPDFObjectHandle.hh b/include/qpdf/QPDFObjectHandle.hh
index ad542c09..4f18cbda 100644
--- a/include/qpdf/QPDFObjectHandle.hh
+++ b/include/qpdf/QPDFObjectHandle.hh
@@ -544,6 +544,10 @@ class QPDFObjectHandle
     int getArrayNItems();
     QPDF_DLL
     QPDFObjectHandle getArrayItem(int n);
+    // Note: QPDF arrays internally optimize memory for arrays
+    // containing lots of nulls. Calling getArrayAsVector may cause a
+    // lot of memory to be allocated for very large arrays with lots
+    // of nulls.
     QPDF_DLL
     std::vector<QPDFObjectHandle> getArrayAsVector();
     QPDF_DLL
@@ -932,7 +936,6 @@ class QPDFObjectHandle
     class ReleaseResolver
     {
 	friend class QPDF_Dictionary;
-	friend class QPDF_Array;
         friend class QPDF_Stream;
         friend class SparseOHArray;
       private:
-- 
cgit v1.2.3-54-g00ecf