Timer class for C++

Timer.hpp

#pragma once

#include <chrono>
#include <string>
#include <iostream>

class Timer {
public:
    Timer(const std::string& title = "") : m_name(title), m_begin(m_clock::now()) {}

    void print() {
        std::cout << m_name << " elapsed: " << elapsed() << "s" << std::endl;
    }

    void reset() {
        m_begin = m_clock::now();
    }

    double elapsed() const {
        return std::chrono::duration_cast<m_seconds>(m_clock::now() - m_begin).count();
    }

private:
    std::string m_name;
    typedef std::chrono::high_resolution_clock m_clock;
    typedef std::chrono::duration<double, std::ratio<1> > m_seconds;
    std::chrono::time_point<m_clock> m_begin;
};