C++ da sizeof() Fonksiyonu

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#include <cstdlib>
#include <iostream>
using namespace std;
int main(int argc, char *argv[]){
    char k;
    cout<<"char boyu="<<sizeof(char)<<endl;
    cout<<"int boyu="<<sizeof(int)<<endl;
    cout<<"double boyu="<<sizeof(double)<<endl;
    cout<<"float boyu="<<sizeof(float)<<endl;
    cout<<"long double boyu="<<sizeof(long double)<<endl;
    cout<<"unsignet int boyu="<<sizeof(unsigned int)<<endl;
    cout<<"signed int boyu="<<sizeof(signed int)<<endl;
    cout<<"short int boyu="<<sizeof(short int)<<endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}