[Go][c++][fun] golang style method call

Unified Call Syntax n4165
Hacker news: A bit of background for the unified C++ call proposal (isocpp.org)
Uniform Function Call Syntax (RUST / D)
reddit: C++17 unified call syntax concern

#include <iostream>
#include <memory>
#include <boost/serialization/strong_typedef.hpp>
using namespace std;

// act like golang package.
namespace NS1{
    struct Fun{
        int a{0};  // zero init like in golang
    };

    // golang style method
    void run(Fun* f, int){
        std::cout << f->a << std::endl;
    }
};

using namespace NS1;

void run(NS1::Fun*){
    cout << "run int" << endl;
}

int main(){
    run(unique_ptr<Fun>(new Fun{38}).get(), 42);
}