The problem is, we return address of a local variable which is not advised as local variables may not exist in memory after function call is over. Here variable arr will give the base address, which is a constant pointer pointing to the first element of the array, arr[0]. B) An array size must be declared if not initialized immediately. Base (A) : is the base address of the array A. w : is the number of bytes required to store single element of the array A. Getting a memory address - arrays identifier; To get the address of an array, you simply use the array name, which stores the memory location of the first value in the array. It will always point to the first element of the array as long as it exists. The computer can access any address in memory at any time (hence the name "random access memory"). C) Array size is the sum of sizes of all elements of the array. To declare an array, define the variable type, specify the name of the array followed by square brackets and specify the number of elements it should store: The confusion happens because array name indicates the address of first element and arrays are always passed as pointers (even if we use square bracket). Relationship between array and pointer. Answer: 1. &foo C. foo[0] D. &foo[0] View Answer. As array name serves like a constant pointer, it cannot be changed during the course of program execution. Arrays, the & operator and function. Here’s simple Program to Get Address of array using Pointers in C Programming Language. Therefore, in the declaration − double balance[50]; balance is a pointer to &balance[0], which is the address of the first element of the array balance. Which of the following gives the memory address of the first element in array foo, an array with 10 elements? How do I print the addresses of all elements or elemant at perticular position? In short, arr has two purpose - it is the name of the array and it acts as a pointer pointing towards the first element in the array. ; first element in the array. Here’s a Simple Program input values into an array and print the value and address on screen using pointer in C Programming Language. Read about dynamic allocation and you'll make another big step in grasping C. We can also pass the entire array to a function by passing array name as the argument. Explanation:- address of array element in c++, we have to print the address of an array(an array each variable of an array) or we have to display the memory location of each element of an array we can do this by adding "address of" or "&" operator.Ths "&" operator returns the address of a variable in a memory location. Arrays and pointers: get array value through array pointer: 7.8.4. We already learned that name of the array is a constant pointer. Arrays are used to store multiple values in a single variable, instead of declaring separate variables for each value. In C++, if an array has a size n, we can store upto n number of elements in the array. Address of second element in array (value of arraypointer+1) 7.8.5. We can return value of a local variable but it is illegal to return memory location that is allocated within function on stack. Thus by having the pointer of the first element, we can get the entire array as we have done in examples above. What is vector in C++? To print the memory address, we use '%p' format specifier in C. Submitted by IncludeHelp, on September 13, 2018 To print the address of a variable, we use "%p" specifier in C programming language. The two dimensional array num will be saved as a continuous block in the memory. Address of the last element of array; Base address of the array We will assign the address of the first element of the array num to the pointer ptr using the address of & operator. 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