Verifying membership of a key

This example verifies that a key is in the dictionary. A for loop iterates over 20 keys. For each key the return value from Member is tested for a value of NIL. A return value of NIL indicates the key is not in the dictionary.

      for (i = 1; i <= 20; i++) {
      TCollectibleLong key(i);
      TCollectibleLong *tmpKey;
      if ((tmpKey=(TCollectibleLong*)dict3->Member (key)) != NIL) {
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