How do C change to C++?

Question

there have two parts

{
sscanf(data0.c_std(), "%d", &x);
}

and

{
for(p=b; scanf("%c",p) && is space(*p); );
}

I want to change this two parts to c++ how can I do?

Answer 1

cout<< <<;
cin>> >>;

Answer 2

#include <string>

use namespace std;

string x;
cin >> x;

cout >> "You entered '" << x << "'" << endl;

Answer 3

cout<< <<;
cin>> >>;

Answer 4

cin>>x endl;