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Defined in header <complex> | ||
| (1) | ||
template<class T> std::complex<T> conj(conststd::complex<T>& z); | (until C++20) | |
template<class T> constexprstd::complex<T> conj(conststd::complex<T>& z); | (since C++20) | |
Additional overloads(since C++11) | ||
Defined in header <complex> | ||
| (A) | ||
std::complex<float> conj(float f); std::complex<double> conj(double f); | (until C++20) | |
constexprstd::complex<float> conj(float f); constexprstd::complex<double> conj(double f); | (since C++20) (until C++23) | |
template<class FloatingPoint> constexprstd::complex<FloatingPoint> conj( FloatingPoint f); | (since C++23) | |
| (B) | ||
template<class Integer> constexprstd::complex<double> conj( Integer i); | (until C++20) | |
template<class Integer> constexprstd::complex<double> conj( Integer i); | (since C++20) | |
A,B) Additional overloads are provided for all integer and floating-point types, which are treated as complex numbers with zero imaginary component. | (since C++11) |
Contents |
| z | - | complex value |
| f | - | floating-point value |
| i | - | integer value |
The additional overloads are not required to be provided exactly as(A,B). They only need to be sufficient to ensure that for their argumentnum:
T, thenstd::conj(num) has the same effect asstd::conj(std::complex<T>(num)).#include <complex>#include <iostream> int main(){std::complex<double> z(1.0,2.0);std::cout<<"The conjugate of "<< z<<" is "<< std::conj(z)<<'\n'<<"Their product is "<< z* std::conj(z)<<'\n';}
Output:
The conjugate of (1,2) is (1,-2)Their product is (5,0)
| returns the magnitude of a complex number (function template)[edit] | |
| returns the squared magnitude (function template)[edit] | |
| constructs a complex number from magnitude and phase angle (function template)[edit] | |
C documentation forconj | |
