What's wrong here?

Question

I'm getting error here:

#include <bits/stdc++.h>
using namespace std;
int main() {

string str1, str2;
int i;

cin >> str1 >> str2;

i= strcmp(str1, str2);
cout << i << endl;

return 0;
}

Answer 1

use;-
i = strcmp(str1.c_str(), str2.c_str());

or use:-

i = str1.compare(str2);

Answer 2

rodwynnejones Its working fine, Thank you❤
But why i got error in my previous code & what's the changing?

Answer 3

strcmp() needs a "c style" string, that why I "converted" it with the "c_str().

Answer 4

rodwynnejones this code giving me some garbage value for some test cases:
#include <bits/stdc++.h>
using namespace std;
int main() {
string str1, str2;
int i;
cin >> str1 >> str2;
i= str1.compare(str2);
cout << i << endl;

return 0;
}
for this test case:
abcdefg
AbCdEfF

abs
Abz

aaaa
aaaA
these test cases giving me garbage value.
What can i do here?