C++之程序时间统计类实现

/**********
TimeCounter.h
huangsy13@gmail.com
**********/
#ifndef TIMECOUNTER
#define TIMECOUNTER

#include <iostream>
#include <cstring>
#include <ctime>
#include <sstream>
#include <cstdlib>
#include "FileStruct.h"

using namespace std;

struct TimeCounter{
    time_t beginT;
    time_t nowT;
    int totalTask;
    int completeTask;
    string lastUseT;
    void setUp(int totalTask0){
        totalTask = totalTask0;
        nowT = 0;
        beginT = time(NULL);
    }
    bool update(int taskNow){
        nowT = time(NULL);
        completeTask = taskNow;
        if (lastUseT == useTime() && completeTask < totalTask){
            return false;
        }
        else{
            lastUseT = useTime();
            return true;
        }
    }
    string useTime(){
        int r = nowT - beginT;
        return getTimeStr(r);
    }
    string restTime(){
        if(completeTask == 0){
            return "unknow";
        }
        int restTT = double(totalTask-completeTask)*double(nowT-beginT)/double(completeTask);
        return getTimeStr(restTT);
    }
    string getTimeStr(int r){
        int rs = r;
        int rh = rs/3600;
        int  rm = rs/60;
        string str;
        if (rh != 0){
            str = numToStr(rh) + " hours ";
        }
        if (rs >= 60){
            str += numToStr(rm%60) + " minutes ";
        }
        str += numToStr(rs%60) + " seconds";
        return str;
    }
    string percent(){
        int p = 100*completeTask/totalTask;
        return numToStr(p)+"%";
    }
    void print(bool clear){
        if (clear) system("clear");
        cout << "use time " << useTime()<<endl;
        cout << "rest Time "<< restTime() <<endl;
        cout << "complete " << percent() << endl;
    }
    void updateAndPrint(int nn,bool clear = true){
        if(update(nn)){
            print(clear);
        }
    }
};

#endif


/*********
main.cpp
huangsy13@gmail.com
*********/
#include <iostream>
#include <cstring>
#include <ctime>
#include <sstream>
#include <cstdlib>
#include "TimeCounter.h"

using namespace std;

int main(){
    TimeCounter T;
    int totalTask = 5000;
    T.setUp(totalTask);
    int taskNow = 0;
    while(taskNow < totalTask){
        T.updateAndPrint(++taskNow);
        for (int i = 0 ; i < 100000 ; i++){
            int a = 50;
            int b = 100;
            while(a != b){
                a++;
            }
        }
    }
}