Листинг 3.1. Пример использования операторов инкремента и декремента

// IncrAndDecr.cpp: Defines the entry point for the console application.

// Код программы с операторами инкремента и декремента

 

#include "stdafx.h"

#include<iostream>

using namespace std;

 

int main(){

int n,m,i=3,j=3;

cout <<"At the beginning: \n";

cout <<"i = " << i <<"\n";

cout << "j = " << j << "\n";

cout <<"After command n=i++:\n";

n=i++;// Теперь n=3, a i=4

cout << "n = " << n <<"\n";

cout << "i = " << i << "\n";

 

cout << " After command m=++j:\n";

m=++j;// Значение переменных m=4 и j =4

cout << "m = " << m <<"\n";

cout << "j = " << j << "\n";

 

cout << " After command n= (--i)*(i--):\n";

n=(--i)*(i--);// Теперь n=9, a i=2

cout << "n = " << n << "\n";

cout << "i = " << i << "\n";

 

cout << " After command m=(--j)*(--j):\n";

m=(--j)*(--j);// Теперь m=4, a j=2

cout << "m = " << m << "\n";

cout << "j = " << j << "\n";

 

cout <<" After command n= (--i) * (i++):\n";

n=(--i)*(i++);// Теперь n=l, a i=2

cout << "n = " << n << "\n";

cout << "i = " << i << "\n";

 

cout << " After command m= (j--) * (++j):\n";

m= (j--)*(++j);// Теперь m=9, a j=2

cout << "m = " << m << "\n";

cout << "j = " << j << "\n";

 

cout << " After command n= (--i) * (++i):\n";

n=(--i)*(++i);// Теперь n=4, a i=2

cout << "n = " << n << "\n";

cout << "i = " << i << "\n";

 

cin >> j;

return 0;

}