+#define _WX_DEFINE_BASEARRAY_COMMON(T, name)                                \
+/* searches the array for an item (forward or backwards) */                 \
+int name::Index(T lItem, bool bFromEnd) const                               \
+{                                                                           \
+  if ( bFromEnd ) {                                                         \
+    if ( size() > 0 ) {                                                     \
+      size_t n = size();                                                    \
+      do {                                                                  \
+        if ( (*this)[--n] == lItem )                                        \
+          return n;                                                         \
+      }                                                                     \
+      while ( n != 0 );                                                     \
+    }                                                                       \
+  }                                                                         \
+  else {                                                                    \
+    for( size_t n = 0; n < size(); n++ ) {                                  \
+      if( (*this)[n] == lItem )                                             \
+        return n;                                                           \
+    }                                                                       \
+  }                                                                         \
+                                                                            \
+  return wxNOT_FOUND;                                                       \
+}                                                                           \
+                                                                            \
+/* add item assuming the array is sorted with fnCompare function */         \
+size_t name::Add(T lItem, CMPFUNC fnCompare)                                \
+{                                                                           \
+  size_t idx = IndexForInsert(lItem, fnCompare);                            \
+  Insert(lItem, idx);                                                       \
+  return idx;                                                               \
+}
+
+#if wxUSE_STL
+
+#define _WX_DEFINE_BASEARRAY_NOCOMMON(T, name)                              \
+size_t name::IndexForInsert(T lItem, CMPFUNC fnCompare) const               \
+{                                                                           \
+    Predicate p((SCMPFUNC)fnCompare);                                       \
+    const_iterator it = std::lower_bound(begin(), end(), lItem, p);         \
+    return it - begin();                                                    \
+}                                                                           \
+                                                                            \
+int name::Index(T lItem, CMPFUNC fnCompare) const                           \
+{                                                                           \
+    Predicate p((SCMPFUNC)fnCompare);                                       \
+    const_iterator it = std::lower_bound(begin(), end(), lItem, p);         \
+    return (it != end() &&                                                  \
+            p(lItem, *it)) ? (int)(it - begin()) : wxNOT_FOUND;             \
+}                                                                           \
+                                                                            \
+void name::Shrink()                                                         \
+{                                                                           \
+    name tmp(*this);                                                        \
+    swap(tmp);                                                              \
+}
+
+#else // if !wxUSE_STL
+
+#define _WX_DEFINE_BASEARRAY_NOCOMMON(T, name)                              \