Question

While passing an array as an actual argument, the function call must have

• A. the array name with empty brackets
• B. the array name with its size
• C. the array name alone
• D. none of the above

Answer 1

The correct option is C the array name alone

While passing an array as an actual argument, the function call must have the array name alone.

An array reference always "decays" to a pointer to the first element of the array. Therefore, it isn't possible to pass an array "by value". An array in a function call will be passed to the function as a pointer, which is analogous to passing the array by reference.

While passing arrays as arguments to the function, only the name of the array is passed. C program to pass an array containing age of person to a function. This function should find average age and display the average age in main function.