Increment/Decrement & Compound Assignment

Increment/Decrement

• o'zgaruvchining qiymatini 1ga oshirish (++) yoki kamaytirish (--) uchun ishlatiladi

int x = 10;  // x = 10
int y = x++;    // y = 10, x = 11
int z = x++ + y++; // z = 21, x = 12, y = 11

cout << x << endl;
cout << y << endl;
cout << z << endl;

• postfix usulida increment/decrement o'zgaruvchidan keyin keladi va operator ustunligi juda past bo'ladi.

Masalan: x = y++; ifodasida increment operatori o'zgaruvchidan keyin kelgani sababli o'zlashtirish operatori birinchi bajariladi

    int x = 5;
    int y = x++;

    cout << x << endl; // 6
    cout << y << endl; // 5

• prefix usulida increment decrement o'zgaruvchidan oldin keladi va operator birinchi bajariladi

Masalan: x = ++y; ifodasida increment operatori o'zgaruvchidan avval kelgani sababli increment operatori birinchi bajariladi.

    int x = 5;
    int y = ++x;

    cout << x << endl; // 6
    cout << y << endl; // 6