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std::complex<T>::operator+(unary), operator-(unary)

(1)
template< class T >
std::complex<T> operator+( const std::complex<T>& val );
(until C++20)
template< class T >
constexpr std::complex<T> operator+( const std::complex<T>& val );
(since C++20)
(2)
template< class T >
std::complex<T> operator-( const std::complex<T>& val );
(until C++20)
template< class T >
constexpr std::complex<T> operator-( const std::complex<T>& val );
(since C++20)

Implements the analogs of the unary arithmetic operators for complex numbers.

1) Returns the value of its argument
2) Negates the argument

Parameters

val - the complex number argument

Return value

1) a copy of the argument, std::complex<T>(val)
2) negated argument, std::complex<T>(-val.real(), -val.imag())

See also

performs complex number arithmetics on two complex values or a complex and a scalar
(function template)

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