3.3.2.15. Class Fftw

• Defined in File fftw.h

3.3.2.15.1. Class Documentation

class Fftw

fftw3 management class

Public Functions

PlanSPtr GetRealToComplexPlan(const Size &size, double *in, fftw_complex *out)

Get a r2c fftw plan of the given size.

Return

unique ptr to the created plan

Parameters

• in: real input array complying with the size
• out: complex output array complying with the size

Exceptions

• sirius::fftw::Exception: if the plan creation fails

PlanSPtr GetComplexToRealPlan(const Size &size, fftw_complex *in, double *out)

Get a c2r fftw plan of the given size.

Parameters

• size: plan size
• in: complex input array complying with the size
• out: real output array complying with the size

Exceptions

• sirius::fftw::Exception: if the plan creation fails

Public Static Functions

static Fftw &Instance()

Get Fftw singleton instance.

Return

Fftw instance