std::real(std::complex)

 

C++

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Symbols index

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endian (C++20)

 

std::complex

Member functions
complex::complex
complex::operator=
complex::real
complex::imag
complex::operator+=complex::operator-=complex::operator*=complex::operator/=
Non-member functions
operator+operator- operator+operator-operator*operator/ operator==operator!= (until C++20) operator<<operator>>	real imag abs arg norm conj proj (C++11) polar operator""ioperator""ifoperator""il (C++14)(C++14)(C++14)
Exponential functions
exp
log
log10
Power functions
pow
sqrt
Trigonometric functions
sin cos tan	asin (C++11) acos (C++11) atan (C++11)
Hyperbolic functions
sinh cosh tanh	asinh (C++11) acosh (C++11) atanh (C++11)

 

Defined in header <complex>
	(1)
template< class T > T real( const std::complex<T>& z );			(until C++14)
template< class T > constexpr T real( const std::complex<T>& z );			(since C++14)
		(2)
float real( float z ); template< class DoubleOrInteger > double real( DoubleOrInteger z ); long double real( long double z );				(since C++11) (until C++14)
constexpr float real( float z ); template< class DoubleOrInteger > constexpr double real( DoubleOrInteger z ); constexpr long double real( long double z );				(since C++14)

1) Returns the real part of the complex number z, i.e. z.real().

2) Additional overloads are provided for float, double, long double, and all integer types, which are treated as complex numbers with zero imaginary part.

(since C++11)

Parameters

z

-

complex value

Return value

The real part of z.

See also

real	accesses the real part of the complex number (public member function)
imag	returns the imaginary part (function template)
C documentation for creal