What is a void pointer and what is it used for?

A void pointer is a pointer that has no associated data type with it. A void pointer can hold address of any type and can be typcasted to any type.

Where is void pointer used?

void pointers should be used any time the contents of a block of data is not important. For example when copying data the contents of a memory area is copied but the format of the data is not important.

What is void pointer in OOP?

A void pointer is a general-purpose pointer that can hold the address of any data type, but it is not associated with any data type.

What are void pointers used for in C++?

A void pointer is a pointer that can point to any type of object, but does not know what type of object it points to. A void pointer must be explicitly cast into another type of pointer to perform indirection. A null pointer is a pointer that does not point to an address.

What is void pointer and null pointer in C?

Void pointer is a specific pointer type. Null pointer is used for assigning 0 to a pointer variable of any type. Void pointer is used for storing address of other variable irrespective of its datatype.

Can I use void pointer in C++?

Before you proceed with this tutorial, be sure to check C++ pointers. In C++, we cannot assign the address of a variable of one data type to a pointer of another data type. However, the pointer is of int type. In such situations, we can use the pointer to void (void pointers) in C++.

What is a void C++?

When used as a function return type, the void keyword specifies that the function doesn’t return a value. When used for a function’s parameter list, void specifies that the function takes no parameters. A void* pointer can be converted into any other type of data pointer.

What is a void in C?

Void is an empty data type that has no value. We use void data type in functions when we don’t want to return any value to the calling function. Example: void sum (int a, int b); – This function won’t return any value to the calling function.