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  • -1 Your answer suggests that & is only a bitwise operator, but that is not true. It is also a boolean "or" operator. Commented Jan 6, 2012 at 15:20
  • @Bohemian: Thanks for the heads up. true & false evaluates to false. Can you please explain this "boolean "or" operator"? May be I am not getting what you are trying to say. Commented Jan 6, 2012 at 15:27
  • Sorry - I meant boolean AND, not OR! ie true & false is valid syntax. -1 removed :) Commented Jan 6, 2012 at 23:23