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function fir(E1 &&, std::reference_wrapper<fir_state<T, U>>) fir

template <typename T, typename E1, typename U>
KFR_INTRINSIC expression_fir<T, U, E1, true> fir(E1&& e1, std::reference_wrapper<fir_state<T, U>> state)

Returns template expression that applies FIR filter to the input

Parameters
e1 an input expression
state coefficients and state of the filter (taken by reference, ensure proper lifetime)

Defined at dsp/fir.hpp:285