From 60a51eaf486d53491c1ce8723e3f5fb901b66515 Mon Sep 17 00:00:00 2001
From: Stephan Bergmann <sbergman@redhat.com>
Date: Sun, 27 Dec 2015 21:18:30 +0100
Subject: [PATCH] external/libvisio: Avoid undefined behavior

Change-Id: Ia86ebe7cd48de3f42dd95a11be7926f1e83d9113
---
 external/libvisio/ubsan.patch | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/external/libvisio/ubsan.patch b/external/libvisio/ubsan.patch
index d80f7ebe5bbe..ec67b5c9cd4a 100644
--- a/external/libvisio/ubsan.patch
+++ b/external/libvisio/ubsan.patch
@@ -1,5 +1,14 @@
 --- src/lib/VSDContentCollector.cpp
 +++ src/lib/VSDContentCollector.cpp
+@@ -3220,7 +3220,7 @@
+     }
+     if (U_SUCCESS(status) && conv)
+     {
+-      const char *src = (const char *)&characters[0];
++      const char *src = (const char *)characters.data();
+       const char *srcLimit = (const char *)src + characters.size();
+       while (src < srcLimit)
+       {
 @@ -3285,6 +3285,7 @@
    _handleLevelChange(level);
    librevenge::RVNGString text;