1 2 static char help[] = "Tests PetscArraymove()/PetscMemmove()\n"; 3 4 #include <petscsys.h> 5 6 int main(int argc,char **argv) 7 { 8 PetscInt i,*a,*b; 9 PetscErrorCode ierr; 10 11 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 12 13 ierr = PetscMalloc1(10,&a);CHKERRQ(ierr); 14 ierr = PetscMalloc1(20,&b);CHKERRQ(ierr); 15 16 /* 17 Nonoverlapping regions 18 */ 19 for (i=0; i<20; i++) b[i] = i; 20 ierr = PetscArraymove(a,b,10);CHKERRQ(ierr); 21 ierr = PetscIntView(10,a,NULL);CHKERRQ(ierr); 22 23 ierr = PetscFree(a);CHKERRQ(ierr); 24 25 /* 26 | | | | 27 b a b+15 b+20 28 a+10 a+15 29 */ 30 a = b + 5; 31 ierr = PetscArraymove(a,b,15);CHKERRQ(ierr); 32 ierr = PetscIntView(15,a,NULL);CHKERRQ(ierr); 33 ierr = PetscFree(b);CHKERRQ(ierr); 34 35 /* 36 | | | | 37 a b a+20 a+25 38 b+20 39 */ 40 ierr = PetscMalloc1(25,&a);CHKERRQ(ierr); 41 b = a + 5; 42 for (i=0; i<20; i++) b[i] = i; 43 ierr = PetscArraymove(a,b,20);CHKERRQ(ierr); 44 ierr = PetscIntView(20,a,NULL);CHKERRQ(ierr); 45 ierr = PetscFree(a);CHKERRQ(ierr); 46 47 ierr = PetscFinalize(); 48 return ierr; 49 } 50 51 /*TEST 52 53 test: 54 55 TEST*/ 56