X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d1da887276915d7b83dc7beff43bbe0deea35939..70a7bd90f9bdafd5ffbc89fd0b79b9e900d7dd22:/src/html/helpdata.cpp

diff --git a/src/html/helpdata.cpp b/src/html/helpdata.cpp
index 41d62f4543..9d5e70638d 100644
--- a/src/html/helpdata.cpp
+++ b/src/html/helpdata.cpp
@@ -78,6 +78,11 @@ wxHtmlHelpIndexCompareFunc(wxHtmlHelpDataItem **a, wxHtmlHelpDataItem **b)
     wxHtmlHelpDataItem *ia = *a;
     wxHtmlHelpDataItem *ib = *b;
 
+    if (ia == NULL)
+        return -1;
+    if (ib == NULL)
+        return 1;
+
     if (ia->parent == ib->parent)
     {
         return ia->name.CmpNoCase(ib->name);
@@ -681,7 +686,7 @@ bool wxHtmlHelpData::AddBook(const wxString& book)
         lineptr = ReadLine(lineptr, linebuf, 300);
 
         for (wxChar *ch = linebuf; *ch != wxT('\0') && *ch != wxT('='); ch++)
-           *ch = tolower(*ch);
+           *ch = (wxChar)wxTolower(*ch);
 
         if (wxStrstr(linebuf, _T("title=")) == linebuf)
             title = linebuf + wxStrlen(_T("title="));
@@ -971,7 +976,7 @@ void wxHtmlSearchEngine::LookFor(const wxString& keyword, bool case_sensitive, b
     m_WholeWords = whole_words_only;
     m_Keyword = keyword;
 
-    if (m_CaseSensitive)
+    if (!m_CaseSensitive)
         m_Keyword.LowerCase();
 }