Actual source code: ex10.c


  2: static char help[] = "Tests PetscArraymove()/PetscMemmove()\n";

  4: #include <petscsys.h>

  6: int main(int argc, char **argv)
  7: {
  8:   PetscInt i, *a, *b;

 11:   PetscInitialize(&argc, &argv, (char *)0, help);

 13:   PetscMalloc1(10, &a);
 14:   PetscMalloc1(20, &b);

 16:   /*
 17:       Nonoverlapping regions
 18:   */
 19:   for (i = 0; i < 20; i++) b[i] = i;
 20:   PetscArraymove(a, b, 10);
 21:   PetscIntView(10, a, NULL);

 23:   PetscFree(a);

 25:   /*
 26:      |        |                |       |
 27:      b        a               b+15    b+20
 28:                               a+10    a+15
 29:   */
 30:   a = b + 5;
 31:   PetscArraymove(a, b, 15);
 32:   PetscIntView(15, a, NULL);
 33:   PetscFree(b);

 35:   /*
 36:      |       |                    |       |
 37:      a       b                   a+20   a+25
 38:                                         b+20
 39:   */
 40:   PetscMalloc1(25, &a);
 41:   b = a + 5;
 42:   for (i = 0; i < 20; i++) b[i] = i;
 43:   PetscArraymove(a, b, 20);
 44:   PetscIntView(20, a, NULL);
 45:   PetscFree(a);

 47:   PetscFinalize();
 48:   return 0;
 49: }

 51: /*TEST

 53:    test:

 55: TEST*/