From fb3702e311d23f964b0d7abfe97c6eafa4f79841 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Thu, 17 Aug 2017 20:05:32 +0200
Subject: [PATCH] Don't seek at the end for each top-level element

Rather use the previously determined file size to
determine the max element size.
---
 basicfileinfo.cpp    | 2 +-
 genericfileelement.h | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/basicfileinfo.cpp b/basicfileinfo.cpp
index 2ca214e..237a097 100644
--- a/basicfileinfo.cpp
+++ b/basicfileinfo.cpp
@@ -61,7 +61,7 @@ void BasicFileInfo::reopen(bool readOnly)
     invalidated();
     m_file.open(m_path, (m_readOnly = readOnly) ? ios_base::in | ios_base::binary : ios_base::in | ios_base::out | ios_base::binary);
     m_file.seekg(0, ios_base::end);
-    m_size = m_file.tellg();
+    m_size = static_cast<uint64>(m_file.tellg());
     m_file.seekg(0, ios_base::beg);
 }
 
diff --git a/genericfileelement.h b/genericfileelement.h
index aa827fa..261f82d 100644
--- a/genericfileelement.h
+++ b/genericfileelement.h
@@ -230,8 +230,7 @@ GenericFileElement<ImplementationType>::GenericFileElement(GenericFileElement<Im
     m_container(&container),
     m_parsed(false)
 {
-    stream().seekg(0, std::ios_base::end);
-    m_maxSize = static_cast<uint64>(stream().tellg());
+    m_maxSize = container.fileInfo().size();
     if(m_maxSize > startOffset) {
         m_maxSize -= startOffset;
         stream().seekg(startOffset, std::ios_base::beg);