Increment and Decrement Operators | C Programming Language Tutorial pdf

Increment and Decrement Operators:

            ++   and   - -

The Operator + + adds 1 to the operand while -- subtracts 1, Both are unary operators

Eg : 
++x   or  x ++   == > x+=1  == >  x=x+1
  -- x  or  x- -    == > x-=1   == >  x=x-1

A Profix operator first adds 1 to the operand and then the result is assigned to the variable on left. A postfix operator first assigns the value to the variable on the left and the increments the operand.

Eg: 
1) m = 5;       2). m = 5
   y = ++m;         y = m++
O/P: 
       m =6, y=6        m=6, y=5