Class expression_discard¶

`class` expression_discard<Tin, Dims> base ¶

template <typename Tin, index_t Dims>
struct expression_discard : public expression_traits_defaults { … }

Output expression that discards all written values.

Used as a sink when an input expression needs to be evaluated but its results are not needed. Reports an infinite shape and accepts writes of any width without storing them.

Template parameters
Tin	Value type accepted by the sink.
Dims	Number of dimensions reported by the sink.

`typedef` value_type ¶

using value_type             = Tin

Fully qualified name: kfr::expression_discard<Tin, Dims>::value_type

Declared at base/expression.hpp:1339

`variable` dims ¶

constexpr static size_t dims = Dims

Fully qualified name: kfr::expression_discard<Tin, Dims>::dims

Declared at base/expression.hpp:1340

`function` get_shape(const expression_discard<Tin, Dims> &) ¶

constexpr static shape<dims> get_shape(const expression_discard&) { … }

Fully qualified name: kfr::expression_discard<Tin, Dims>::get_shape(const expression_discard<Tin, Dims> &)

Declared at base/expression.hpp:1341

`function` get_shape() ¶

constexpr static shape<dims> get_shape() { … }

Fully qualified name: kfr::expression_discard<Tin, Dims>::get_shape()

Declared at base/expression.hpp:1342

`function` set_elements(const expression_discard<Tin, Dims> &, shape<Dims>, axis_params<VecAxis, N>, const std::type_identity_t<vec<Tin, N>> &) ¶

template <size_t N, index_t VecAxis>
friend KFR_INTRINSIC void set_elements(const expression_discard& self, shape<Dims>,
                                       axis_params<VecAxis, N>,
                                       const std::type_identity_t<vec<Tin, N>>& x)

Discards a vector write.

Friend function found via ADL that accepts and ignores any vector value written to the sink.

Parameters
self	The sink instance.
x	Vector value being written (ignored).

Template parameters
N	Vector width.
VecAxis	Axis parameter.

Fully qualified name: kfr::expression_discard<Tin, Dims>::set_elements(const expression_discard<Tin, Dims> &, shape<Dims>, axis_params<VecAxis, N>, const std::type_identity_t<vec<Tin, N>> &)

Declared at base/expression.hpp:1355

Fully qualified name: kfr::expression_discard<Tin, Dims>

Declared at base/expression.hpp:1337

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Class expression_discard¶