Types of Pointers in C/C++

Wed, 12 May 2021 16:16:41 +0530

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Types of Pointers in C / C++

1. Null Pointer

It is a pointer pointing to nothing. NULL pointer points to the base address of the segment.

-EXAMPLE-

1int * ptr = (int) * 0;
2float * fptr = (float) * 0;
3double * dptr = (double) * 0;
4char * chptr = (char) * 0;

Other ways of initializing NULL pointer

1int * ptr = NULL;
2char * chptr = '\0';

NULL also means 0 in macro
c
1#define NULL 0

2. Dangling Pointer

A pointer pointing to the memory address of any variable (or object) which has been deleted from memory.
When a pointer points to a deleted memory address, the pointer is called as a dangling pointer.

C on Lorbic

Types of Pointers in C/C++

Types of Pointers in C / C++

1. Null Pointer

Other ways of initializing NULL pointer

NULL also means 0 in macro

2. Dangling Pointer