fixed crash in wxStrtok

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@8043 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-08-12 11:24:06 +00:00
parent 2abeae78b2
commit 30f2a1119a
1 changed files with 4 additions and 0 deletions
--- a/src/common/wxchar.cpp
+++ b/src/common/wxchar.cpp
@@ -171,6 +171,10 @@ int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
 #ifndef wxStrtok
 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
 {
+  if (!(save_ptr && *save_ptr)) {
+    return (wxChar *) NULL;
+  }
+
  if (!psz) psz = *save_ptr;
  psz += wxStrspn(psz, delim);
  if (!*psz) {