file_to_vector

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <vector>
#include <map>
#include <unordered_map>
#include <set>
#include <list>

#include <sys/stat.h>

using namespace std;

int main(int argc, char *argv[], char *env[])
{
    string file_name;
    if(argc==2)
    file_name = string(argv[1]);
    else
    file_name = "s:\\big_text_file.dat";

    ifstream f(file_name);
    if (!f)
    {
        cerr<<"Nem sikerült megnyitni a \""<<file_name<<"\" fájlt...!\n";
        return 1;
    }

    string row;
    vector<string> rows;
    int i=0,rows_length=0;
    while(getline(f,row))
    {
        i++;
        rows_length+=row.length()+2;
        rows.push_back(row);
        /*
        cerr.setf(ios::right);
        cerr<<"i="<<i<<"\t"
        <<"string -> addr / size / összes.  : "<<&row <<" / "<<row.size()<<" / "<<rows_length<<"\t"
        <<"vector -> addr / size / capacity : "<<&rows<<" / "<<rows.size()<<" / "<<rows.capacity()<<" ["<<rows.size()*100/rows.capacity()<<"%]\t\r";
        */
    }

    cout << endl
         << "sorok...            "<<endl
         << "   száma:           "<<i<<endl
         << "   hossza összesen: "<<rows_length<<" darab karakter"<<endl<<endl;
    cout << "vektor...           "<<endl
         << "   méret:           "<<rows.size()<<" darab"<<endl
         << "   kapacitás:       "<<rows.capacity()<<" darab"<<endl
         //<< "   max.méret: "<<rows.max_size()<<endl
         <<endl;

    cout <<"shrink..."<<endl;
    rows.shrink_to_fit();

    cout << "vektor...           "<<endl
         << "   méret:           "<<rows.size()<<" darab"<<endl
         << "   kapacitás:       "<<rows.capacity()<<" darab"<<endl
         //<< "   max.méret: "<<rows.max_size()<<endl
         <<endl;

    struct stat s;
    stat(file_name.c_str(),&s);
    cout << "fájl méret:   "<<s.st_size<<" byte ("<<s.st_size/1024<<" Kbyte)"<<endl<<endl;

    cout << endl; system("\"tasklist /fi \"imagename eq file_to_vector.exe\"");

    cout << endl; system("\"powershell -c \"get-process file_to_vector\"");

    // cout << endl; system('ps -C file_to_vector -O rss | awk \'{count++;sum+=$2}; END {count--;print"Count =",count;print"Sum =",sum/1024,"MB";};\'');

    cin.get();
    return 0;
}