What is the correct way to declare a function with a formal parameter as a sized array?

To declare a function with a formal parameter as a sized array in languages like C or C++, you typically specify the type of the elements in the array followed by the array name and its size in the function signature. Here’s the correct syntax:

return_type function_name(data_type array_name[size]) {
    // Function body
}

Example

In C, for example, if you want to declare a function that takes an array of integers with a size of 5, it would look like this:

void processArray(int arr[5]) {
    // Function body
}

Note

• In C/C++, you can also write it as int arr[] if you want to allow for flexibility in passing arrays of different sizes, but this will not enforce size constraints.
• To ensure the size is known at compile time, stick with the specific size in your parameter declaration.

So, the function should clearly define both the type of the array and its size.