Write a C Program to Compare Two Strings Using Pointers

C Program to Compare Two Strings Using Pointers. C program compares two strings without using a library function or string compares in c without using a library function. we are comparing two strings using pointers for comparing two strings we are not using an strcmp function we are comparing with the help of a pointer.

Explanation: In this problem,  First take input from the user first take a first string and take a second string and assign both strings in two pointer type variables separately, after that run a while loop and put the condition that string1 and string2 are the same and also both strings are not equal null till increase both string by one character and repeat the process again and again. If the first string is the same as a second string then print the message "Both Strings Are Same" if not then print "Both Strings Is Not Same" on the screen.

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C Program to Compare Two Strings Using Pointers

#include <iostream>
using namespace std;

int main()
{
    char string1[50],string2[50],*str1,*str2;
    int i,equal = 0;

    printf("Enter The First String: ");
    scanf("%s",string1);

    printf("Enter The Second String: ");
    scanf("%s",string2);

    str1 = string1;
    str2 = string2;

    while(*str1 == *str2)
    {
        if ( *str1 == '\0' || *str2 == '\0' )
            break;

        str1++;
        str2++;
    }

    if( *str1 == '\0' && *str2 == '\0' )
        printf("\n\nBoth Strings Are Equal.");
    else
        printf("\n\nBoth Strings Are Not Equal.");
}

Output Compare Two Strings Using Pointers in C

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