#ifndef _GSL_FFT_SIGNALS_H
#define _GSL_FFT_SIGNALS_H

#include <gsl_math.h>

#include <gsl_complex.h>
#include <gsl_fft.h>

int
  gsl_fft_signal_complex_pulse (const unsigned int k,
				     const unsigned int n,
				     const double z_real,
				     const double z_imag,
				     complex data[],
				     complex fft[]);

int
  gsl_fft_signal_complex_constant (const unsigned int n,
					const double z_real,
					const double z_imag,
					complex data[],
					complex fft[]);

int
  gsl_fft_signal_complex_exp (const int k,
				   const unsigned int n,
				   const double z_real,
				   const double z_imag,
				   complex data[],
				   complex fft[]);


int
  gsl_fft_signal_complex_exppair (const int k1,
				       const int k2,
				       const unsigned int n,
				       const double z1_real,
				       const double z1_imag,
				       const double z2_real,
				       const double z2_imag,
				       complex data[],
				       complex fft[]);

int
  gsl_fft_signal_complex_noise (const unsigned int n,
				     complex data[],
				     complex fft[]);

int
  gsl_fft_signal_real_noise (const unsigned int n,
				  complex data[],
				  complex fft[]);

#endif /* _GSL_FFT_SIGNALS_H */