From 232a3ab577cec9533acff89b5d6a4fcc1602756a Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 4 Aug 2021 01:29:44 +0200
Subject: [PATCH] Allocate more space for the wxRegEx error message buffer

We need to account for the trailing NUL explicitly here, so add 1 to the
length returned by the first call to wx_regerror() to avoid chopping off
the last character of the error message.
---
 src/common/regex.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/regex.cpp b/src/common/regex.cpp
index 7deddcbb02..c30556e5fe 100644
--- a/src/common/regex.cpp
+++ b/src/common/regex.cpp
@@ -444,7 +444,7 @@ wxString wxRegExImpl::GetErrorMsg(int errorcode) const
     int len = wx_regerror(errorcode, &m_RegEx, NULL, 0);
     if ( len > 0 )
     {
-        wxCharTypeBuffer<wxRegErrorChar> errbuf(len);
+        wxCharTypeBuffer<wxRegErrorChar> errbuf(len + 1);
 
         (void)wx_regerror(errorcode, &m_RegEx, errbuf.data(), errbuf.length());