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Pass-By-Result

• out mode

• Local's value is passed back to the caller

• Physical move is usually used

• Disadvantages:
  • If value is moved, time and space
  • In both cases, order dependence may be a problem

        procedure sub1(y: int, z: int);
            ...
        sub1(x, x);
    

• Value of x in the caller depends on order of assignments at the return