ifft.h

#pragma once
 
#include <dsplib/fft.h>
#include <dsplib/array.h>
#include <memory>
 
namespace dsplib {
 
using IfftPlanC = FftPlanC;
 
class IfftPlanR
{
public:
    virtual ~IfftPlanR() = default;
 
    [[nodiscard]] virtual arr_real solve(span_t<cmplx_t> x) const = 0;
 
    virtual void solve(span_t<cmplx_t> x, mut_span_t<real_t> r) const {
        r = this->solve(x);
    }
 
    [[nodiscard]] virtual int size() const noexcept = 0;
};
 
std::shared_ptr<IfftPlanC> ifft_plan_c(int n);
 
std::shared_ptr<IfftPlanR> ifft_plan_r(int n);
 
arr_cmplx ifft(span_t<cmplx_t> x);
 
arr_real irfft(span_t<cmplx_t> x, int n);
 
arr_real irfft(span_t<cmplx_t> x);
 
}   // namespace dsplib