From 38d05c10114297a9cc61e77aab0524ed1af9442d Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 26 Jan 2008 23:23:09 +0000
Subject: [PATCH] don't fail in wxTransferStreamToFile if file size is exact
 multiple of 4KB (bug 1835918)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@51392 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/docview.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/common/docview.cpp b/src/common/docview.cpp
index 0a15360323..7389f94e4c 100644
--- a/src/common/docview.cpp
+++ b/src/common/docview.cpp
@@ -2460,15 +2460,22 @@ bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
         return false;
 
     char buf[4096];
-    do
+    for ( ;; )
     {
         stream.Read(buf, WXSIZEOF(buf));
 
         const size_t nRead = stream.LastRead();
-        if ( !nRead || !file.Write(buf, nRead) )
+        if ( !nRead )
+        {
+            if ( stream.Eof() )
+                break;
+
+            return false;
+        }
+
+        if ( !file.Write(buf, nRead) )
             return false;
     }
-    while ( !stream.Eof() );
 
     return true;
 }