How to compare C++ string using qsort in c?

Question

I tried to learn the qsort function of the c-library stdlib. This is provided even in c++. But i dont understand how to use them for sorting

Answer 1

Works for me:

#include
#include
using namespace std;
#include

int compare_str( const void *a, const void *b){
   string* obj = (string*)a;
   string* obj1 = (string*)b;
   return obj->compare(*obj1);
}
int main(){
    string obj[4] = {"fine", "ppoq", "tri", "get"};
    qsort(obj, 4, sizeof(string), compare_str);
    for( int i=0; i<4; i++)
        cout<