The base class pointer can point to both base class & derived class objects. Although, it cannot change the values present in the derived class. Let us see some code examples for the explanation. Code: Output: Code Explanation: In the above code, we have created a class named as Base_Class_Details. Now we created 2 variables …
In this tutorial you will learn about null pointer in C with examples. When we declare a pointer, by default it points to some random memory location. If you will access the pointer then it may give some undesired value or the program may crash. What is Null Pointer in C? A pointer pointing to …
Here you will learn about difference between reference and pointer in C++. Reference: Reference contains address of a variable. It can be called as alternative name of a variable. Example: int i; int &ri = i; Pointer: Pointer also contains address of a variable. Example: int i; int *pi = &i; Both reference and pointer are used to …
In this tutorial you will learn about pointer to pointer or double pointer in C. Pointer is used to store memory address of variable. Double pointer is used to store memory address of any other pointer. Let’s try to understand this by one example. Also Read: void pointer in C Also Read: C Function Pointer Pointer …
In this program we are reading infinite numbers and then arranging them in ascending order. Here infinite means, the program should read numbers until a particular number is entered to terminate the reading process. In our case we are using -1 to stop the reading process. As we already don’t know how many numbers will …
C/C++ Program to Read Infinite Numbers and Arrange Them in Ascending Order Read More »
In below program we are comparing two string with the help of pointers, without using strcmp() function. A user defined function str_cmp() is created which takes two character pointers as argument. If this function returns 1 than the strings are equal and unequal if returns 0. Just take a look on the program, if you …
C++ Program to Compare Two Strings Using Pointers Read More »
#include<iostream.h> #include<conio.h> void main() { clrscr(); int *a,*b,*temp; cout<<“Enter value of a and b:”; cin>>*a>>*b; temp=a; a=b; b=temp; cout<<“nAfter swapingna=”<<*a<<“nb=”<<*b; getch(); }
#include<stdio.h> #include<conio.h> void main() { int *a,*b,*temp; clrscr(); printf(“Enter two mumbers:”); scanf(“%d%d”,a,b); printf(“Before Swaping:na=%d b=%d”,*a,*b); temp=a; a=b; b=temp; printf(“nAfter Swaping:na=%d b=%d”,*a,*b); getch(); }
