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 10 PetscFunctionBeginUser; 11 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 12 13 PetscCall(PetscMalloc1(10, &a)); 14 PetscCall(PetscMalloc1(20, &b)); 15 16 /* 17 Nonoverlapping regions 18 */ 19 for (i = 0; i < 20; i++) b[i] = i; 20 PetscCall(PetscArraymove(a, b, 10)); 21 PetscCall(PetscIntView(10, a, NULL)); 22 23 PetscCall(PetscFree(a)); 24 25 /* 26 | | | | 27 b a b+15 b+20 28 a+10 a+15 29 */ 30 a = b + 5; 31 PetscCall(PetscArraymove(a, b, 15)); 32 PetscCall(PetscIntView(15, a, NULL)); 33 PetscCall(PetscFree(b)); 34 35 /* 36 | | | | 37 a b a+20 a+25 38 b+20 39 */ 40 PetscCall(PetscMalloc1(25, &a)); 41 b = a + 5; 42 for (i = 0; i < 20; i++) b[i] = i; 43 PetscCall(PetscArraymove(a, b, 20)); 44 PetscCall(PetscIntView(20, a, NULL)); 45 PetscCall(PetscFree(a)); 46 47 PetscCall(PetscFinalize()); 48 return 0; 49 } 50 51 /*TEST 52 53 test: 54 55 TEST*/ 56