Arithmetic Operators

List of operators

Purpose	Operator example
add	x + y
subtract	x - y
multiply	x * y
divide	x / y
modulus	x % y
exponentiation	not available in C
unary plus	+x
unary minus	-y
postincrement	x++
preincrement	++x
postdecrement	y--
predecrement	--y

• x++ is equivalent to x = x + 1

• x++ means use it, then increment it

• ++x means increment it, then use it

• no exponentiation; for power of two use x*x