Question

#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string.h>
using namespace std;
int main()
{
        string cmd;
        while(strcmp(cmd.c_str(),"exit")==0 && strcmp(cmd.c_str(),"\exit")==0)
        {
                cin>>cmd;
                cout<<cmd;
        }
        return 0;
}

I am stuck.

Answer 1

After fixing a couple of small bugs, this works on my machine:

#include <cstdlib>
#include <cstdio>
#include <iostream>
#include <cstring>
#include <string>

int main()
{
        std::string cmd;
        while( std::strcmp(cmd.c_str(),"exit")!=0
            && std::strcmp(cmd.c_str(),"\\exit")!=0)
        {
                std::cin>>cmd;
                std::cout<<cmd << '\n';
        }
        return 0;
}

However, I wonder why you want to use std::strcmp() at all. As you have just found out, it’s not as easy to use as the std::string class. This

while(cmd!="exit" && cmd!="\\exit")

works just as well, is easier to understand, and thus easier to get right.