// Finding min element; trying to simplify usage
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

namespace my{
  double min_element(const std::vector<double> & v){
    // no explicit iterator! We need only *(iterator)
    return *(std::min_element(v.begin(),v.end())); 
  }
}
// calling routine is clean and simple:
int main(){
  std::vector<double> v{1.7,1.3,2.8,4.1}; 
  std::cout<<"minimum element = "<<my::min_element(v)<<std::endl;
}