C++ In a Nutshell

Name

operator+ function template — Persforms unary positive or addition

Synopsis

template<typename T>
  complex<T> operator+(const complex<T>& z); 

template<typename T> complex<T>
  operator+(const complex<T>& x, const complex<T>& y);
template<typename T> complex<T>
  operator+(const complex<T>& x, const T& y);
template<typename T> complex<T>
  operator+(const T& x, const complex<T>& y);

The unary positive operator returns z.

The binary addition operator returns the sum of its operands. If either operand is of type T, the argument is interpreted as the real part, with an imaginary part of T( ) or 0.