Actual source code: ex8.c

  1: const char help[] = "Tests PetscDTBaryToIndex(), PetscDTIndexToBary(), PetscDTIndexToGradedOrder() and PetscDTGradedOrderToIndex()";

  3: #include <petsc/private/petscimpl.h>
  4: #include <petsc/private/dtimpl.h>
  5: #include <petsc/private/petscfeimpl.h>

  7: int main(int argc, char **argv)
  8: {
  9:   PetscInt  d, n, maxdim = 4;
 10:   PetscInt *btupprev, *btup;
 11:   PetscInt *gtup;

 14:   PetscInitialize(&argc, &argv, NULL, help);
 15:   PetscMalloc3(maxdim + 1, &btup, maxdim + 1, &btupprev, maxdim, &gtup);
 16:   for (d = 0; d <= maxdim; d++) {
 17:     for (n = 0; n <= d + 2; n++) {
 18:       PetscInt j, k, Nk, kchk;

 20:       PetscDTBinomialInt(d + n, d, &Nk);
 21:       for (k = 0; k < Nk; k++) {
 22:         PetscInt sum;

 24:         PetscDTIndexToBary(d + 1, n, k, btup);
 25:         for (j = 0, sum = 0; j < d + 1; j++) {
 27:           sum += btup[j];
 28:         }
 30:         PetscDTBaryToIndex(d + 1, n, btup, &kchk);
 32:         if (k) {
 33:           j = d;
 34:           while (j >= 0 && btup[j] == btupprev[j]) j--;
 37:         } else PetscArraycpy(btupprev, btup, d + 1);
 38:         PetscDTIndexToGradedOrder(d, Nk - 1 - k, gtup);
 39:         PetscDTGradedOrderToIndex(d, gtup, &kchk);
 42:       }
 43:     }
 44:   }
 45:   PetscFree3(btup, btupprev, gtup);
 46:   PetscFinalize();
 47:   return 0;
 48: }

 50: /*TEST

 52:   test:

 54: TEST*/