23 #ifndef INCLUDED_WAVELET_SQUASH_FF_IMPL_H
24 #define INCLUDED_WAVELET_SQUASH_FF_IMPL_H
28 #include <gsl/gsl_errno.h>
29 #include <gsl/gsl_interp.h>
30 #include <gsl/gsl_spline.h>
40 gsl_interp_accel *d_accel;
44 const std::vector<float> &ogrid);
48 const std::vector<float> &ogrid);
53 int work(
int noutput_items,