Date: 2013-07-02T14:39:24+00:00

Actual source code: ex10.c
petsc-3.4.2 2013-07-02

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

      4: #include <petscsys.h>

      8: int main(int argc,char **argv)
      9: {
     10:   int i,*a,*b,ierr;
     11:   PetscInitialize(&argc,&argv,(char*)0,help);

     13:   PetscMalloc(10*sizeof(int),&a);
     14:   PetscMalloc(20*sizeof(int),&b);

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

     23:   PetscFree(a);

     25:   /*
     26:      |        |                |       |
     27:      b        a               b+15    b+20
     28:                               a+10    a+15
     29:   */
     30:   a    = b + 5;
     31:   PetscMemmove(a,b,15*sizeof(int));
     32:   PetscIntView(15,a,0);
     33:   PetscFree(b);

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

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