src/base/features/timer.hpp

#pragma once

#include"base/dependencies/index.hpp"

#include"floats.hpp"
#include"metaprogramming.hpp"

// Timer utility type.
class timer{
    // Local type aliases.
    using clock=chrono::steady_clock;
    using time_point=clock::time_point;
    // Starting time.
    static inline time_point const start=clock::now();
public:
    // Return the number of ticks since the starting time.
    template<Float Rep=f64,class Period=ratio<1>>static Rep elapsed(){
        time_point const now=clock::now();
        return chrono::duration<Rep,Period>{now-start}.count();
    }
};