Can someone help me with my code, I'm using Microsoft Visual Studio 2017. So far I have asked this question 4 times and seems like no one can help.

Here is a picture of the error as well as a copy of my code. gets on line 56 is undefined and I don't know how to fix it.

#include #include #include #include #include

//function prototypes void getString(char*, char*); int getLength(char*); int isPalindrome(char*); void displayReverse(char*); void concat(char*, char*); void displayResults(char*, char*);

int main() { //declare two char array to hold string char str1[250], str2[250];

//create pointers to the strings char *firstString = str1; char *secondString = str2; int flag = 1; char choice;

//repeat the below execution until the user wishes to quit do { //get the input using getString method getString(firstString, secondString); //display the results using displayResults method displayResults(firstString, secondString); //prompt and read if user wishes to repeat printf(" Would you like to continue with another pair of strings (Y of N)? "); scanf(" %c", &choice); //if user enters n exit the loop if (choice == 'n' || choice == 'N') { flag = 0; } getchar(); } while (flag == 1);

return 0; }

//function that takes two pointer variables and read the strings using pointers void getString(char *firstString, char *secondString) { //prompt and read two strings printf("Enter the first string: "); gets(firstString); printf("Enter the second string: "); gets(secondString); }

//function that takes a pointer to the string as parameter and returns the length of the string int getLength(char *str) { int len = 0; //loop through the string and get its length while (*str != '\0') { len++; str++; } return len; }

//function that takes a pointer to string and checks if string is palindrome or not int isPalindrome(char *str) { //get the length of the string int len = getLength(str); int isPalin = 1; int i; //loop through the string and check if string is palindrome or not for (i = 0; i

//function that takes a pointer to string and prints the reverse of the string void displayReverse(char *str) { //get the length of the string int len = getLength(str); int i; //starting from the last position print the characters in the string in reverse order for (i = len; i >= 0; i--) printf("%c", *(str + i)); }

//function that takes two string and print the concatenated string void concat(char *firstString, char *secondString) { int i = 0, j = 0; char concatenated[500]; char *newString = concatenated;

//loop through the first string and add it to the new string while (firstString[i] != '\0') { newString[j] = firstString[i]; j++; i++; }

i = 0; //loop through the second string, and add it to the new string while (secondString[i] != '\0') { newString[j] = secondString[i]; j++; i++; } newString[j] = '\0'; //print the concatenated string for (i = 0; i

//function that takes two string and displays the results void displayResults(char *firstString, char *secondString) { printf(" Length of the first string is %d", getLength(firstString)); printf(" Length of the second string is %d", getLength(secondString)); if (isPalindrome(firstString)) printf(" First string is a palindrome"); else printf(" First string is not palindrome"); if (isPalindrome(secondString)) printf(" Second string is a palindrome"); else printf(" Second string is not palindrome"); printf(" Reverse of the first string is: "); displayReverse(firstString); printf(" Revese of the second string is: "); displayReverse(secondString); printf(" The concatenated string is: "); concat(firstString, secondString); }

//function that takes two pointer variables and read the strings using pointers 51 52 void getString (char first String, char secondstring) //prompt and read two strings 54 printf "Enter the first string: ")i 55 ets (first string); 56 printf "Enter the second string: 57 gets secondstring) 58 59 60 61 //function that takes a pointer to the string as parameter and returns the length of the string 62 int get Length char str) 100 Error List (X) 1 Error 40 warnings 0 Messages xr Build IntelliSense Entire Solution Line suppression State File Code Description Project identifier "gets" is