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Authors:
Walter Savitch ,julia Lobur
Chapter:
Procedural Abstraction And Functions That Return A Value
Exercise:
Self-test Exercises
Question:9 | ISBN:9780321531346 | Edition: 7

Question

Carefully describe the call-by-value parameter mechanism.

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Answer

Suppose the function is defined with arguments, say param1 and param2.

  • The function is then called with corresponding arguments arg1 and arg2.

  • The values of the arguments are “plugged in” for the corresponding formal parameters, arg1 into param1, arg2 into param2. The formal parameters are then used in the function.

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