how to compare two std::set?

Question

I do such comparison of two std::set

#include 
#include 
using namespace std;

#include 
#include 

        

Answer 1

Another way would be this:

template

bool set_compare(Set const &lhs, Set const &rhs){
    return lhs.size() == rhs.size() 
        && equal(lhs.begin(), lhs.end(), rhs.begin());
}

Inspired from the elegant answer here.