mock-gr/algorithms/fun1_fftshift.cpp

//
// File: fftshift.cpp
//
// MATLAB Coder version            : 5.2
// C/C++ source code generated on  : 11-Mar-2023 10:38:07
//

// Include Files
#include "fun1_fftshift.h"
#include "rt_nonfinite.h"
#include "coder_array.h"

// Function Definitions
//
// Arguments    : ::coder::array<creal_T, 2U> &x
// Return Type  : void
//
namespace coder {
void fftshift(::coder::array<creal_T, 2U> &x)
{
  for (int dim{0}; dim < 2; dim++) {
    int a;
    a = x.size(dim) - 1;
    if (x.size(dim) > 1) {
      int i;
      int k;
      int npages;
      int vlend2;
      vlend2 = x.size(dim) / 2 - 1;
      npages = 1;
      i = dim + 2;
      for (k = i; k < 3; k++) {
        npages *= x.size(1);
      }
      if ((vlend2 + 1) << 1 == x.size(dim)) {
        int i2;
        i2 = 0;
        for (int b_i{0}; b_i < npages; b_i++) {
          int i1;
          int ib;
          i1 = i2;
          i2 += a;
          i1++;
          i2++;
          ib = i1 + vlend2;
          for (k = 0; k <= vlend2; k++) {
            double xtmp_im;
            double xtmp_re;
            int xtmp_re_tmp;
            xtmp_re_tmp = (i1 + k) - 1;
            xtmp_re = x[xtmp_re_tmp].re;
            xtmp_im = x[xtmp_re_tmp].im;
            i = ib + k;
            x[xtmp_re_tmp] = x[i];
            x[i].re = xtmp_re;
            x[i].im = xtmp_im;
          }
        }
      } else {
        int i2;
        i2 = 0;
        for (int b_i{0}; b_i < npages; b_i++) {
          double xtmp_im;
          double xtmp_re;
          int i1;
          int ib;
          i1 = i2;
          i2 += a;
          i1++;
          i2++;
          ib = i1 + vlend2;
          xtmp_re = x[ib].re;
          xtmp_im = x[ib].im;
          for (k = 0; k <= vlend2; k++) {
            int xtmp_re_tmp;
            i = ib + k;
            xtmp_re_tmp = (i1 + k) - 1;
            x[i] = x[xtmp_re_tmp];
            x[xtmp_re_tmp] = x[i + 1];
          }
          ib = (ib + vlend2) + 1;
          x[ib].re = xtmp_re;
          x[ib].im = xtmp_im;
        }
      }
    }
  }
}

} // namespace coder

//
// File trailer for fftshift.cpp
//
// [EOF]
//