Lapse.h

#pragma once



#include <chrono>
#include "./CLog.h"



class Lapse final {
    public:
        ~Lapse() noexcept;
        
        Lapse(const char* p, std::size_t s);
    
    private:
        static double Now() noexcept;
    
    
    private:
        double mLapse;
        const char* mp;
        std::size_t ms;
};



Lapse::~Lapse() noexcept
{
    clog(mp, ms, Now() - mLapse);
}



Lapse::Lapse(const char* p, std::size_t s)
:mLapse(Now())
,mp(p)
,ms(s)
{
}



double Lapse::Now() noexcept
{
    using namespace std::chrono;
    return static_cast<double>(duration_cast<nanoseconds>(steady_clock::now().time_since_epoch()).count()) / 1000000000;
}