template<class T> complex<T> operator+(const complex<T>& lhs);
Remarks: unary operator.
Returns: complex<T>(lhs).
template<class T> complex<T> operator+(const complex<T>& lhs, const complex<T>& rhs); template<class T> complex<T> operator+(const complex<T>& lhs, const T& rhs); template<class T> complex<T> operator+(const T& lhs, const complex<T>& rhs);
Returns: complex<T>(lhs) += rhs.
template<class T> complex<T> operator-(const complex<T>& lhs);
Remarks: unary operator.
Returns: complex<T>(-lhs.real(),-lhs.imag()).
template<class T>
complex<T> operator-(const complex<T>& lhs, const complex<T>& rhs);
template<class T> complex<T> operator-(const complex<T>& lhs, const T& rhs);
template<class T> complex<T> operator-(const T& lhs, const complex<T>& rhs);
Returns: complex<T>(lhs) -= rhs.
template<class T>
complex<T> operator*(const complex<T>& lhs, const complex<T>& rhs);
template<class T> complex<T> operator*(const complex<T>& lhs, const T& rhs);
template<class T> complex<T> operator*(const T& lhs, const complex<T>& rhs);
Returns: complex<T>(lhs) *= rhs.
template<class T>
complex<T> operator/(const complex<T>& lhs, const complex<T>& rhs);
template<class T> complex<T> operator/(const complex<T>& lhs, const T& rhs);
template<class T> complex<T> operator/(const T& lhs, const complex<T>& rhs);
Returns: complex<T>(lhs) /= rhs.
template<class T>
constexpr bool operator==(const complex<T>& lhs, const complex<T>& rhs);
template<class T> constexpr bool operator==(const complex<T>& lhs, const T& rhs);
template<class T> constexpr bool operator==(const T& lhs, const complex<T>& rhs);
Returns: lhs.real() == rhs.real() && lhs.imag() == rhs.imag().
Remarks: The imaginary part is assumed to be T(), or 0.0, for the T arguments.
template<class T>
constexpr bool operator!=(const complex<T>& lhs, const complex<T>& rhs);
template<class T> constexpr bool operator!=(const complex<T>& lhs, const T& rhs);
template<class T> constexpr bool operator!=(const T& lhs, const complex<T>& rhs);
Returns: rhs.real() != lhs.real() || rhs.imag() != lhs.imag().
template<class T, class charT, class traits>
basic_istream<charT, traits>&
operator>>(basic_istream<charT, traits>& is, complex<T>& x);
Effects: Extracts a complex number x of the form: u, (u), or (u,v), where u is the real part and v is the imaginary part ([istream.formatted]).
Requires: The input values shall be convertible to T.
If bad input is encountered, calls is.setstate(ios_base::failbit) (which may throw ios::failure ([iostate.flags])).
Returns: is.
Remarks: This extraction is performed as a series of simpler extractions. Therefore, the skipping of whitespace is specified to be the same for each of the simpler extractions.
template<class T, class charT, class traits>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& o, const complex<T>& x);
Effects: inserts the complex number x onto the stream o as if it were implemented as follows:
template<class T, class charT, class traits>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& o, const complex<T>& x) {
basic_ostringstream<charT, traits> s;
s.flags(o.flags());
s.imbue(o.getloc());
s.precision(o.precision());
s << '(' << x.real() << "," << x.imag() << ')';
return o << s.str();
}
Note: In a locale in which comma is used as a decimal point character, the use of comma as a field separator can be ambiguous. Inserting std::showpoint into the output stream forces all outputs to show an explicit decimal point character; as a result, all inserted sequences of complex numbers can be extracted unambiguously.