Unusual Control Structures

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goto

   * Are gotos used only as a last resort, and then only to make code more
     readable and maintainable?
   * If a goto is used for the sake of efficiency, has the gain in
     efficiency been measured and documented?
   * Are gotos limited to one label per routine?
   * Do all gotos go forward, not backward?
   * Are all goto labels used?

return

   * Does each routine use the minimum number of returns possible?
   * Do returns enhance readability?

Recursion

   * Does the recursive routine include code to stop the recursion?
   * Does the routine use a safety counter to guarantee the routine stops?
   * Is recursion limited to one routine?
   * Is the routine's depth of recursion within the limits imposed by the
     size of the program's?
   * Is recursion the best way to implement the routine? Is it better than
     simple iteration?

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