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std::complex::complex(3) C++ Standard Libary std::complex::complex(3) NAME std::complex::complex - std::complex::complex Synopsis Primary template complex<T> complex( const T& re = T(), const T& im = T() ); (1) (until C++14) constexpr complex( const T& re = T(), const T& im = T() ); (1) (since C++14) complex( const complex& other ); (2) (until C++14) constexpr complex( const complex& other ); (2) (since C++14) template< class X > (3) (until C++14) complex( const complex<X>& other); template< class X > (3) (since C++14) constexpr complex( const complex<X>& other); Specialization complex<float> complex( float re = 0.0f, float im = 0.0f ); (1) (until C++11) constexpr complex(float re = 0.0f, float im = 0.0f); (1) (since C++11) explicit complex( const complex<double>& other ); (3) (until C++11) explicit complex( const complex<long double>& other ); explicit constexpr complex( const complex<double>& other ); (3) (since C++11) explicit constexpr complex( const complex<long double>& other ); Specialization complex<double> complex( double re = 0.0, double im = 0.0 ); (1) (until C++11) constexpr complex( double re = 0.0, double im = 0.0 ); (1) (since C++11) complex( const complex<float>& other ); (3) (until C++11) explicit complex( const complex<long double>& other ); constexpr complex( const complex<float>& other ); (3) (since C++11) explicit constexpr complex( const complex<long double>& other ); Specialization complex<long double> complex( long double re = 0.0L, long double im = 0.0L ); (1) (until C++11) constexpr complex( long double re = 0.0L, long double im = 0.0L ); (1) (since C++11) complex( const complex<float>& other ); (3) (until C++11) complex( const complex<double>& other ); constexpr complex( const complex<float>& other ); (3) (since C++11) constexpr complex( const complex<double>& other ); Constructs the std::complex object. 1) Constructs the complex number from real and imaginary parts. 2) Copy constructor. Constructs the object with the copy of the con- tents of other. The copy constructor is implicit in the standard specializations. 3) Converting constructor. Constructs the object from a complex num- ber of a different type. Parameters re - the real part im - the imaginary part other - another complex to use as source See also operator= assigns the contents (public member function) operator""if operator""i A std::complex literal representing pure imaginary num- ber operator""il (function) (C++14) http://cppreference.com 2022.07.31 std::complex::complex(3)
NAME | Synopsis | Parameters | See also
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