Write a C++ function called ay that makes a copy of a C-string and also adds the two characters "ay" to the end of it. Here is what it should do:Dynamically allocate memory (using new) for a new C-string large enough to hold the result C-string. It should be the minimum size necessary to store the result C-string. Don't forget room for a null character! Put the result C-string into the newly allocated memory. It must be a valid, NULL-terminated C-string.Return a pointer to the result string.The function can assume that parameter str points to a valid, NULL-terminated C-string. You can use cstring utility functions like strcpy(), strlen(), etc. if you like, but you are not required to. You do not need to demonstrate calling this function. Example: ay("Giants")should return a pointer to a newly-allocated, null-terminated C-string: "Giantsay" Your function must have the following signature:char* ay(char *str)

#include<iostream>#include<cstring>using namespace std;//Function Prototypechar* ay(char *str);int main(){ //Required variable to store result C-Stringchar *res; //Call function and store result in 'res'res = ay("Gaints"); //Print result stringcout << res << endl; //Delete allocated memorydelete[] res; return 0;}char* ay(char *str){//Find the length of given stringint size = strlen(str),i;//Create newString with that size + 2( + 2 is to add 'ay')char *resString = new char[size+2];//Loop through old string and allocate each letter to new stringfor(i = 0;str[i]!='\0';i++){resString[i] = str[i]; } //Append 'ay' and null character at the endresString[i++] = 'a'; resString[i++] = 'y';resString[i] = '\0';//Return result stringreturn resString; }

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a C++ function called ay that makes a copy of a C-string and also adds the two characters "ay" to the end of it. Here is what it should do:

Dynamically allocate memory (using new) for a new C-string large enough to hold the result C-string. It should be the minimum size necessary to store the result C-string. Don't forget room for a null character!
Put the result C-string into the newly allocated memory. It must be a valid, NULL-terminated C-string.
Return a pointer to the result string.

The function can assume that parameter str points to a valid, NULL-terminated C-string. You can use cstring utility functions like strcpy(), strlen(), etc. if you like, but you are not required to. You do not need to demonstrate calling this function.

Example: ay("Giants")should return a pointer to a newly-allocated, null-terminated C-string: "Giantsay"

Your function must have the following signature:

char* ay(char *str)

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