Beginning C++ Programming

Arithmetic operators

The arithmetic operators +, -, /, *, and % need little explanation other than perhaps the division and modulus operators. All of these operators act upon integer and real numeric types except for %, which can only be used with integer types. If you mix the types (say, add an integer to a floating-point number) then the compiler will perform an automatic conversion, as explained in the next chapter. The division operator / behaves as you expect for floating point variables: it produces the result of the division of the two operands. When you perform the division between two integers a / b, the result is the whole number of the divisor (b) in the dividend (a). The remainder of the division is obtained by the modulus %