The concept of pointers in C++ is inherited from the C language, which relies extensively on the use of pointers.

Topic: The concept of pointers in C++ is inherited from the C language, which relies extensively on the use of pointers. What are the advantages and disadvantages of having the functionality of pointers in a programming language?

Expert Solution

Pointer Variable:

A pointer variable is a special type of variable that is used to store the address of another variable which has a similar data type as the pointer data type. The dereferenced operator '*' is used to access the value stored at that location that is stored by the pointer variable.

For example:

int a = 10;

int *b = &a;

Here, the variable 'b' is a pointer variable that stores the address of an integer type variable.

Advantages:

The use of pointer reduce the source code and improve performance.
The multiple values can be returned by using the pointer.
The array and the string can be passed to a function more efficiently.
It is used to manage dynamic memory allocation.

Disadvantages:

Pointer can cause a segmentation fault.
The dynamically allocated memory must be freed explicitly to avoid the memory leakage problem.
The illegal use of pointer may corrupt the memory.
Pointers are slower as compare to the normal variables.

venereology answered 2 years ago

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