xfunctor_view

Defined in xtensor/xfunctor_view.hpp

template<class F, class CT>
class xfunctor_view : public xt::xfunctor_applier_base<xfunctor_view<F, CT>>, public xt::xview_semantic<xfunctor_view<F, CT>>, public extension::xfunctor_view_base_t<F, CT>

View of an xexpression .

The xfunctor_view class is an expression addressing its elements by applying a functor to the corresponding element of an underlying expression. Unlike e.g. xgenerator, an xfunctor_view is an lvalue. It is used e.g. to access real and imaginary parts of complex expressions.

xfunctor_view has a view semantics and can be used on any expression. For a similar feature with a container semantics, one can use xfunctor_adaptor.

xfunctor_view is not meant to be used directly, but through helper functions such as real or imag.

See also

real, imag

Template Parameters

• F – the functor type to be applied to the elements of specified expression.

• CT – the closure type of the xexpression type underlying this view

Extended copy semantic

template<class E>
inline auto operator=(const xexpression<E> &e) -> self_type&

The extended assignment operator.

Defined in xtensor/xcomplex.hpp

Warning

doxygenfunction: Unable to resolve function “xt::real” with arguments (E&&) in doxygen xml output for project “xtensor” from directory: ../xml. Potential matches:

- template<class E> decltype(auto) real(E &&e) noexcept

Warning

doxygenfunction: Unable to resolve function “xt::imag” with arguments (E&&) in doxygen xml output for project “xtensor” from directory: ../xml. Potential matches:

- template<class E> decltype(auto) imag(E &&e) noexcept