text: #define TYPEDEPARGS 0, 1
  #define SINGLEARGS
  #define COMPLEXARGS
  #define OCTFILENAME comp_nonsepdgt_multi // change to filename
  #define OCTFILEHELP "This function calls the C-library\n\
                       c=comp_nonsepdgt_multi(f,g,a,M,lt);\n"
  
  
  #include "ltfat_oct_template_helper.h"
  
  
  static inline void
  fwd_dgt_multi( const Complex *f,const Complex *g,
                 const octave_idx_type L, const octave_idx_type Lg,
                 const octave_idx_type W, const octave_idx_type a,
                 const octave_idx_type M, const octave_idx_type lt1,
                 const octave_idx_type lt2, Complex *cout)
  {
      dgt_multi_d(
          reinterpret_cast<const fftw_complex *>(f),
          reinterpret_cast<const fftw_complex *>(g),
          L,Lg,W,a,M,lt1,lt2,
          reinterpret_cast<fftw_complex *>(cout));
  }
  
  static inline void
  fwd_dgt_multi( const FloatComplex *f,const FloatComplex *g,
                 const octave_idx_type L, const octave_idx_type Lg,
                 const octave_idx_type W, const octave_idx_type a,
                 const octave_idx_type M, const octave_idx_type lt1,
                 const octave_idx_type lt2, FloatComplex *cout)
  {
      dgt_multi_s(
          reinterpret_cast<const fftwf_complex *>(f),
          reinterpret_cast<const fftwf_complex *>(g),
          L,Lg,W,a,M,lt1,lt2,
          reinterpret_cast<fftwf_complex *>(cout));
  }
  
  template <class LTFAT_TYPE, class LTFAT_REAL, class LTFAT_COMPLEX>
  octave_value_list octFunction(const octave_value_list& args, int nargout)
  {
      DEBUGINFO;
      MArray<LTFAT_TYPE> f = ltfatOctArray<LTFAT_TYPE>(args(0));
      MArray<LTFAT_TYPE> g = ltfatOctArray<LTFAT_TYPE>(args(1));
      const int    a        = args(2).int_value();
      const double M        = args(3).int_value();
      const Matrix lt       = args(4).matrix_value();
  
      const int L  = f.rows();
      const int W  = f.cols();
      const int Lg = g.rows();
      const int N  = L/a;
  
      const int lt1 = ltfat_round(lt(0));
      const int lt2 = ltfat_round(lt(1));
  
      dim_vector dims_out(M,N,W);
      dims_out.chop_trailing_singletons();
  
      MArray<LTFAT_COMPLEX> cout(dims_out);
  
      fwd_dgt_multi(f.data(),g.data(),L,Lg,W,a,M,lt1,lt2,cout.fortran_vec());
  
      return octave_value(cout);
  }
  