Struct thrust::complex

complex is the Thrust equivalent to std::complex. It is functionally identical to it, but can also be used in device code which std::complex currently cannot.

Template Parameters: T: The type used to hold the real and imaginary parts. Should be float or double. Others types are not supported.

#include <thrust/complex.h>
template <typename T> struct thrust::complex { public:  typedef see below value_type;
  _CCCL_HOST_DEVICE   complex(const T & re);
  _CCCL_HOST_DEVICE   complex(const T & re,     const T & im);
  complex() = default;
  complex(const complex< T > & z) = default;
  template <typename U>   _CCCL_HOST_DEVICE   complex(const complex< U > & z);
  _CCCL_HOST _CCCL_DEVICE   complex(const std::complex< T > & z);
  template <typename U>   _CCCL_HOST _CCCL_DEVICE   complex(const std::complex< U > & z);
  _CCCL_HOST_DEVICE complex &   operator=(const T & re);
  complex &   operator=(const complex< T > & z) = default;
  template <typename U>   _CCCL_HOST_DEVICE complex &   operator=(const complex< U > & z);
  _CCCL_HOST _CCCL_DEVICE complex &   operator=(const std::complex< T > & z);
  template <typename U>   _CCCL_HOST _CCCL_DEVICE complex &   operator=(const std::complex< U > & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator+=(const complex< U > & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator-=(const complex< U > & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator*=(const complex< U > & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator/=(const complex< U > & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator+=(const U & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator-=(const U & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator*=(const U & z);
  template <typename U>   _CCCL_HOST_DEVICE complex< T > &   operator/=(const U & z);
  _CCCL_HOST_DEVICE T   real() const;
  _CCCL_HOST_DEVICE T   imag() const;
  _CCCL_HOST_DEVICE T   real() const;
  _CCCL_HOST_DEVICE T   imag() const;
  _CCCL_HOST_DEVICE void   real(T re);
  _CCCL_HOST_DEVICE void   imag(T im);
  _CCCL_HOST_DEVICE void   real(T re);
  _CCCL_HOST_DEVICE void   imag(T im);
  _CCCL_HOST   complex< T >() const; };

Member Types

Typedef thrust::complex::value_type

typedef Tvalue_type; value_type is the type of complex's real and imaginary parts.

Member Functions

Function thrust::complex::complex

_CCCL_HOST_DEVICE complex(const T & re); Construct a complex number with an imaginary part of 0.

Function Parameters: re: The real part of the number.

Function thrust::complex::complex

_CCCL_HOST_DEVICE complex(const T & re,   const T & im); Construct a complex number from its real and imaginary parts.

Function Parameters:

• re The real part of the number.
• im The imaginary part of the number.

Function thrust::complex::complex

complex() = default; Default construct a complex number.

Function thrust::complex::complex

complex(const complex< T > & z) = default; This copy constructor copies from a complex with a type that is convertible to this complex'svalue_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::complex

template <typename U> _CCCL_HOST_DEVICE complex(const complex< U > & z); This converting copy constructor copies from a complex with a type that is convertible to this complex'svalue_type.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::complex

_CCCL_HOST _CCCL_DEVICE complex(const std::complex< T > & z); This converting copy constructor copies from a std::complex with a type that is convertible to this complex'svalue_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::complex

template <typename U> _CCCL_HOST _CCCL_DEVICE complex(const std::complex< U > & z); This converting copy constructor copies from a std::complex with a type that is convertible to this complex'svalue_type.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::operator=

_CCCL_HOST_DEVICE complex & operator=(const T & re); Assign re to the real part of this complex and set the imaginary part to 0.

Function Parameters: re: The real part of the number.

Function thrust::complex::operator=

complex & operator=(const complex< T > & z) = default; Assign z.real() and z.imag() to the real and imaginary parts of this complex respectively.

Function Parameters: z: The complex to copy from.

Function thrust::complex::operator=

template <typename U> _CCCL_HOST_DEVICE complex & operator=(const complex< U > & z); Assign z.real() and z.imag() to the real and imaginary parts of this complex respectively.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::operator=

_CCCL_HOST _CCCL_DEVICE complex & operator=(const std::complex< T > & z); Assign z.real() and z.imag() to the real and imaginary parts of this complex respectively.

Function Parameters: z: The complex to copy from.

Function thrust::complex::operator=

template <typename U> _CCCL_HOST _CCCL_DEVICE complex & operator=(const std::complex< U > & z); Assign z.real() and z.imag() to the real and imaginary parts of this complex respectively.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to copy from.

Function thrust::complex::operator+=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator+=(const complex< U > & z); Adds a complex to this complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to be added.

Function thrust::complex::operator-=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator-=(const complex< U > & z); Subtracts a complex from this complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to be subtracted.

Function thrust::complex::operator*=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator*=(const complex< U > & z); Multiplies this complex by another complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to be multiplied.

Function thrust::complex::operator/=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator/=(const complex< U > & z); Divides this complex by another complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to be divided.

Function thrust::complex::operator+=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator+=(const U & z); Adds a scalar to this complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The complex to be added.

Function thrust::complex::operator-=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator-=(const U & z); Subtracts a scalar from this complex and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The scalar to be subtracted.

Function thrust::complex::operator*=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator*=(const U & z); Multiplies this complex by a scalar and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The scalar to be multiplied.

Function thrust::complex::operator/=

template <typename U> _CCCL_HOST_DEVICE complex< T > & operator/=(const U & z); Divides this complex by a scalar and assigns the result to this complex.

Template Parameters: U: is convertible to value_type.

Function Parameters: z: The scalar to be divided.

Function thrust::complex::real

_CCCL_HOST_DEVICE T real() const; Returns the real part of this complex.

Function thrust::complex::imag

_CCCL_HOST_DEVICE T imag() const; Returns the imaginary part of this complex.

Function thrust::complex::real

_CCCL_HOST_DEVICE T real() const; Returns the real part of this complex.

Function thrust::complex::imag

_CCCL_HOST_DEVICE T imag() const; Returns the imaginary part of this complex.

Function thrust::complex::real

_CCCL_HOST_DEVICE void real(T re); Sets the real part of this complex.

Function Parameters: re: The new real part of this complex.

Function thrust::complex::imag

_CCCL_HOST_DEVICE void imag(T im); Sets the imaginary part of this complex.

Function Parameters: im: The new imaginary part of this complex.e

Function thrust::complex::real

_CCCL_HOST_DEVICE void real(T re); Sets the real part of this complex.

Function Parameters: re: The new real part of this complex.

Function thrust::complex::imag

_CCCL_HOST_DEVICE void imag(T im); Sets the imaginary part of this complex.

Function Parameters: im: The new imaginary part of this complex.

Function thrust::complex::complex< T >

_CCCL_HOST operator std::complex< T >() const; Casts this complex to a std::complex of the same type.