Question

This program should be run on Visual Studio. Please use printf and scanf as input and output. Thank you

6.12 Lab Exercise Ch.6b: C-string functions Create and debug this program in Visual Studio. Name your code Source.c and upload for testing by zyLabs You will write 2 functions which resemble functions in the cstring library. But they will be your own versions 1. int cstrcat(char dstDchar src) which concatenates the char array srcl to char array dstD, and returns the new length of the dstl. not counting the null terminator character. You may assume dstl was declared large enough to handle the combined length Write the loops to find the end of the first string and to do the copy. DO NOT make calls to C-string library functions 2 int cstrcmp(char s. char t) which compares the char array s to char array tD.and returns 1 if the strings are identical, and zero otherwise. Write the loop to do the compare DO NOT make calls to C-string library functions. Be sure you don't compare past the end of either string. Your main program should (1) Prompt the user to enter 2 strings, and save into 2 char(40] arrays using fgets0. Assume the user will enter less than 40 characters for each string. NOTE THAT YOUR PROGRAM WILL HAVE TO REMOVE THE NEWLINE CHARACTER FROM THE END OF EACH STRING, as fgets0 puts the newline in the string as its last character. You can do that by overwriting the newline char, which is at index strlen(stringname)-1, with \0' Ex: Enter 2 strings on separate lines: Hello, world! Hello there. (2) Use the cstrcmp0 function to determine if they are equal, and print out a statement (1pt): Ex: The strings are NOT equal. 3) Call the cstrcat0 function to append the 2nd string to the first, then print out the new longer string and its length (1 pt Ex: Concatenated string:Hello, world!Hello there. Length: 25

Answer 1

#include <iostream>
#include <cmath>
#include <cstring>
using namespace std;
int cstrcat(char dst[], char src[]) {
int i=0;
for(i=0;dst[i]!='\0';i++) {
}
for(int j=0;src[j]!='\0';j++) {
dst[i++]=src[j];
}
dst[i]='\0';
return i;
}
bool cstrcmp(char s[], char t[]) {
if(strlen(s) != strlen(t))
return false;
for(int i=0;s[i]!='\0' && t[i] != '\0';i++) {
if(s[i] != t[i])
{
return false;
}
}
return true;
}
int main()
{
char s1[100], s2[100];
cout << "Enter 2 strings:" << endl;
cin.getline(s1, 100);
cin.getline(s2, 100);
if(cstrcmp(s1,s2)) {
cout<<"The strings are equal."<<endl;
} else {
cout<<"The strings are NOT equal."<<endl;
}
int count = cstrcat(s1,s2);
cout<<"Concatenated string: "<<s1<<endl;
cout<<"Length: "<<count<<endl;
return 0;

}

=============
See Output