C++da Operators

Operatorlar ikkiga turga bo'linib, ular quyidagilar:
binary(+,/,*,-)

unary

Arithmetic operators

• / amalini bajarayotganda, ma'lumotni turi muhim bo'lib, kasr son kasr songa, butun son butun songa bo'linayotganini bilish kerak, yo'qsa misolni javobida o'zgarish bo'ladi.

• modulus faqat butun sonlar ustida amallarni bajaradi.

• amallar matematika bn bir xildek ketma ketlikda bajariladi.

• shortcuts

  • a += 1
  • a *(/, -, %)= 4
  • faqat ushbu qiymatlar uchun shortcut mavjud:
  • * a += 1* --> a++;
  • * a -= 1* --> a--;

Danger

++x --> increase x by 1 and do other operations
x++ --> do other operations and increase by 1
--x --> decrease x by 1 and do other operations
x-- --> do other operations and decrease by 1

• sample int x =5; int y =x++;

cout << x << y << endl;

after running, the answer is---> 6 5

Relational operator

• relationship between left and right sides
• result is always either True(1) or False(0)
• operators-- <, <=, ==, >=, >, !=

Logical operators

• !=not
• &&=and--> hammasi to'g'ri bo'lishi shart.
• ||=or --> 1tasi to'g'ri bo'lsa ham, hisobga o'taveradi.