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Which of the following can never be sent by call-by-value?a.Variableb.Arrayc.Structuresd.Both Array and Structures

Question

Which of the following can never be sent by call-by-value?a.Variableb.Arrayc.Structuresd.Both Array and Structures

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Solution

The correct answer is d. Both Array and Structures.

In call-by-value, the function is called by directly passing the value of the variable as the argument. Changing the argument inside the function doesn’t affect the variable passed from outside the function. In languages like C and C++, we cannot pass the whole array as an argument to a function. However, we can pass the array by reference or by using a pointer. Similarly, structures also cannot be passed value to a function

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