std::complex::real

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Numerics library

Common mathematical functions

Special mathematical functions

Floating-point environment (C++11)

Complex numbers

Numeric arrays

Pseudo-random number generation

Compile-time rational arithmetic (C++11)

Generic numeric operations

iota (C++11)

accumulate

inner_product

adjacent_difference

partial_sum

 

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!= 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)

 

primary template complex<T>
T real() const;	(1)	(until C++14)
constexpr T real() const;	(1)	(since C++14)
void real( T value );	(2)
specialization complex<float>
float real() const;	(1)	(until C++11)
constexpr float real();	(1)	(since C++11) (until C++14)
constexpr float real() const;	(1)	(since C++14)
void real( float value );	(2)
specialization complex<double>
double real() const;	(1)	(until C++11)
constexpr double real();	(1)	(since C++11) (until C++14)
constexpr double real() const;	(1)	(since C++14)
void real( double value );	(2)
specialization complex<long double>
long double real() const;	(1)	(until C++11)
constexpr long double real();	(1)	(since C++11) (until C++14)
constexpr long double real() const;	(1)	(since C++14)
void real( long double value );	(2)

Accesses the real part of the complex number.

1) Returns the real part.

2) Sets the real part to value.

Parameters

value

-

the value to set the real part to

Return value

1) The real part.

2) (none)

See also

real	returns the real component (function template)
imag	accesses the imaginary part of the complex number (public member function)