Order execution

move.cpp

#include <iostream>
#include <string>
#include <string_view>
#include <utility>

template<class T>
T&& log(T&& in, std::string_view msg)
{
    std::cout << msg << std::endl;
    return std::move(in);
}

int f(std::string&& a, std::string&& b)
{
    auto q = std::move(a);
    auto r = std::move(b);
    return q.size() + r.size();
}

int main()
{
    std::string m("VP");
    std::cout << f(log(std::move(m), "first"), log(std::move(m), "second")) << std::endl;
    /* Possible output
       second
       first
       2
     */
}