Assignment Operations
Assignment Operations
The value of the expression that includes the given operation is the value of the left operand after assignment:
Assigning the value of x to the y variable y = x;The following operations unite arithmetic or bitwise operations with operation of assignment:
Adding x to the y variable y += x;
Subtracting x from the y variable y -= x;
Multiplying the y variable by x y *= x;
Dividing the y variable by x y /= x;
Reminder of division of the y variable by x y %= x;
Shift of the binary representation of y to the right by x bits y >>= x;
Shift of the binary representation of y to the left by x bits y <<= x;
AND bitwise operation of binary representations of y and x y &= x;
OR bitwise operation of binary representations of y and x y |= x;
Excluding OR bitwise operation of binary representations of y and x y ^= x;Bitwise operations can be applied to integers only. When performing the operation of the logical shift of the y representation to the right/left by x bits, the 5 smallest binary digits of the x value are used, the highest ones are dropped, i.e. the shift is made to 0-31 bits.
By %= operation (y value by module of x), the result sign is equal to the sign of divided number.
The assignment operator can be used several times in an expression . In this case the processing of the expression is performed from left to right:
y=x=3;First, the variable x will be assigned the value 3, then the y variable will be assigned the value of x, i.e. also 3.