added wxArrayString::operator==() and !=()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7700 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/string.h

@@ -1016,6 +1016,12 @@ public:
     // sort array elements using specified comparaison function
   void Sort(CompareFunction compareFunction);
 
+  // comparison
+    // compare two arrays case sensitively
+  bool operator==(const wxArrayString& a) const;
+    // compare two arrays case sensitively
+  bool operator!=(const wxArrayString& a) const { return !(*this == a); }
+
 protected:
   void Copy(const wxArrayString& src);  // copies the contents of another array