[amp_mcq option1=”must include the address-of (&) operator before the array’s name” option2=”must include the number symbol (#) before the array’s name” option3=”do not have to do anything because arrays are automatically passed by reference” option4=”None of the above” correct=”option1″]<\/p>\n
The correct answer is: A. must include the address-of (&) operator before the array’s name<\/strong>.<\/p>\n When you pass an array by reference, you are passing the address of the array to the function. This means that the function can modify the elements of the array. To pass an array by reference, you must include the address-of (&) operator before the array’s name.<\/p>\n For example, the following code passes the array “`c void change_array(int *arr) { int main() { printf(“%d\\n”, arr[0]); \/\/ prints 10 In this example, the function Options B and C are incorrect because they do not include the address-of (&) operator. Option D is incorrect because arrays are not automatically passed by reference.<\/p>\n","protected":false},"excerpt":{"rendered":" [amp_mcq option1=”must include the address-of (&) operator before the array’s name” option2=”must include the number symbol (#) before the array’s name” option3=”do not have to do anything because arrays are automatically passed by reference” option4=”None of the above” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[683],"tags":[],"class_list":["post-46781","post","type-post","status-publish","format-standard","hentry","category-object-oriented-programming-using-c-plus-plus","no-featured-image-padding"],"yoast_head":"\narr<\/code> by reference to the function change_array()<\/code>:<\/p>\n
\nint arr[] = {1, 2, 3};<\/p>\n
\n arr[0] = 10;
\n}<\/p>\n
\n change_array(arr);<\/p>\n
\n}
\n“`<\/p>\nchange_array()<\/code> modifies the element at index 0 of the array arr<\/code>. The change is visible in the main function because the array arr<\/code> is passed by reference.<\/p>\n