xref: /petsc/src/sys/tests/ex10.c (revision 327415f76d85372a4417cf1aaa14db707d4d6c04)
1c4762a1bSJed Brown 
2c4762a1bSJed Brown static char help[] = "Tests PetscArraymove()/PetscMemmove()\n";
3c4762a1bSJed Brown 
4c4762a1bSJed Brown #include <petscsys.h>
5c4762a1bSJed Brown 
6c4762a1bSJed Brown int main(int argc,char **argv)
7c4762a1bSJed Brown {
8c4762a1bSJed Brown   PetscInt       i,*a,*b;
9c4762a1bSJed Brown 
10*327415f7SBarry Smith   PetscFunctionBeginUser;
119566063dSJacob Faibussowitsch   PetscCall(PetscInitialize(&argc,&argv,(char*)0,help));
12c4762a1bSJed Brown 
139566063dSJacob Faibussowitsch   PetscCall(PetscMalloc1(10,&a));
149566063dSJacob Faibussowitsch   PetscCall(PetscMalloc1(20,&b));
15c4762a1bSJed Brown 
16c4762a1bSJed Brown   /*
17c4762a1bSJed Brown       Nonoverlapping regions
18c4762a1bSJed Brown   */
19c4762a1bSJed Brown   for (i=0; i<20; i++) b[i] = i;
209566063dSJacob Faibussowitsch   PetscCall(PetscArraymove(a,b,10));
219566063dSJacob Faibussowitsch   PetscCall(PetscIntView(10,a,NULL));
22c4762a1bSJed Brown 
239566063dSJacob Faibussowitsch   PetscCall(PetscFree(a));
24c4762a1bSJed Brown 
25c4762a1bSJed Brown   /*
26c4762a1bSJed Brown      |        |                |       |
27c4762a1bSJed Brown      b        a               b+15    b+20
28c4762a1bSJed Brown                               a+10    a+15
29c4762a1bSJed Brown   */
30c4762a1bSJed Brown   a    = b + 5;
319566063dSJacob Faibussowitsch   PetscCall(PetscArraymove(a,b,15));
329566063dSJacob Faibussowitsch   PetscCall(PetscIntView(15,a,NULL));
339566063dSJacob Faibussowitsch   PetscCall(PetscFree(b));
34c4762a1bSJed Brown 
35c4762a1bSJed Brown   /*
36c4762a1bSJed Brown      |       |                    |       |
37c4762a1bSJed Brown      a       b                   a+20   a+25
38c4762a1bSJed Brown                                         b+20
39c4762a1bSJed Brown   */
409566063dSJacob Faibussowitsch   PetscCall(PetscMalloc1(25,&a));
41c4762a1bSJed Brown   b    = a + 5;
42c4762a1bSJed Brown   for (i=0; i<20; i++) b[i] = i;
439566063dSJacob Faibussowitsch   PetscCall(PetscArraymove(a,b,20));
449566063dSJacob Faibussowitsch   PetscCall(PetscIntView(20,a,NULL));
459566063dSJacob Faibussowitsch   PetscCall(PetscFree(a));
46c4762a1bSJed Brown 
479566063dSJacob Faibussowitsch   PetscCall(PetscFinalize());
48b122ec5aSJacob Faibussowitsch   return 0;
49c4762a1bSJed Brown }
50c4762a1bSJed Brown 
51c4762a1bSJed Brown /*TEST
52c4762a1bSJed Brown 
53c4762a1bSJed Brown    test:
54c4762a1bSJed Brown 
55c4762a1bSJed Brown TEST*/
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