Array values using pointer *(p + 0) : 1000 *(p + 1) : 2 *(p + 2) : 3.4 *(p + 3) : 17 *(p + 4) : 50 Array values using balance as address *(balance + 0) : 1000 *(balance + 1) : 2 *(balance + 2) : 3.4 *(balance + 3) : 17 *(balance + 4) : 50 In the above example, p is a pointer to double which means it can store address of a variable of double type. you 4GB, so the size of a pointer will be 32 bits, or 4 (char is usually 8 bits). sizeof doesn't reach into the pointer and see how long the string it points to is. Thus, each element in ptr, now holds a pointer to an int value.

dalawh. Therefore, in the declaration − double balance[50]; balance is a pointer to &balance[0], which is the address of the Der Indexzugriff auf Pointer erfolgt arithmetisch: Wenn Sie den Indexzugriff bei einer Variablen vom Typ POINTER TO verwenden, berechnet TwinCAT den Offset durch pint[i] = (pint + i * SIZEOF(base type))^. *(&arr + 1) ==> Same address as (&arr + 1), but type of pointer is "int *". Following is the declaration of an array of pointers to an integer − int *ptr[MAX]; This declares ptr as an array of MAX integer pointers. int a[3] = {3, 4, 5 }; int *ptr = a; We have a pointer ptr that focuses to the 0th component of the array. char string[32]; All sizeof(any pointer here) does is give you the size of a pointer -- on 32-bit compilers it will be 4.

... See your article appearing on the GeeksforGeeks main page and help other Geeks. For example: Example The sizeof() operator returns size of the pointer, and not of the array, in given expression. Assuming you have some understanding of pointers in C, let us start: An array name is a constant pointer to the first element of the array. I made the sizeof() into a method outside of the main method and called it from inside the main method. When the sizeof operator is applied to an array, it yields the total number of bytes in that array, not the size of the pointer represented by the array identifier. ... ==> Address of 6 integers ahead as pointer type is pointer to array of 6 integers. In the table, pointer notation (using variable ptr) is compared with the equivalent array notation (using variable array)..

The following program demonstrates how to use an array of pointers.

(since C++17) Keywords. The six is because array contains 6 elements, so sizeof returns the number of bytes in the whole array, and we divide it by the element size (int).

Look at the following code fragment: char A[100]; void Foo(char B[100]) { } In this code, the A object is an array and the sizeof(A) expression will return value 100.