fix crashes due to missing npos handling in several wxString methods in STL build (bug 1941352); add an assert to ensure this bug doesn't occur in the future

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53161 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2008-04-13 23:41:15 +00:00
parent 5540b06b00
commit 9ef1ad0d2c
2 changed files with 7 additions and 1 deletions
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -431,7 +431,10 @@ private:
      size_t len;

      SubstrBufFromType(const T& data_, size_t len_)
-          : data(data_), len(len_) {}
+          : data(data_), len(len_)
+      {
+          wxASSERT_MSG( len != npos, "must have real length" );
+      }
  };

 #if wxUSE_UNICODE_UTF8