1 /// @file 2 /// Test CeedVectorSetArray to remove array access 3 /// \test Test CeedVectorSetArray to remove array access 4 #include <ceed.h> 5 #include <math.h> 6 7 int main(int argc, char **argv) { 8 Ceed ceed; 9 CeedVector x; 10 const CeedInt n = 10; 11 CeedScalar a[n]; 12 CeedScalar *b, *c; 13 const CeedScalar *d; 14 15 CeedInit(argv[1], &ceed); 16 17 CeedVectorCreate(ceed, n, &x); 18 for (CeedInt i=0; i<n; i++) 19 a[i] = 0; 20 a[3] = -3.14; 21 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a); 22 23 // Taking array should return a 24 CeedVectorTakeArray(x, CEED_MEM_HOST, &c); 25 if (fabs(c[3] + 3.14) > 10.*CEED_EPSILON) 26 // LCOV_EXCL_START 27 printf("Error taking array c[3] = %f", (CeedScalar)c[3]); 28 // LCOV_EXCL_STOP 29 30 // Getting array should not modify a 31 CeedVectorGetArrayWrite(x, CEED_MEM_HOST, &b); 32 b[5] = -3.14; 33 CeedVectorRestoreArray(x, &b); 34 35 if (fabs(a[5] + 3.14) < 10.*CEED_EPSILON) 36 // LCOV_EXCL_START 37 printf("Error protecting array a[3] = %f", (CeedScalar)a[3]); 38 // LCOV_EXCL_STOP 39 40 // Note: We do not need to free c because c == a was stack allocated. 41 CeedVectorDestroy(&x); 42 43 // Test with a size zero vector 44 CeedVectorCreate(ceed, 0, &x); 45 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, NULL); 46 CeedVectorGetArrayRead(x, CEED_MEM_HOST, &d); 47 if (b) printf("CeedVectorGetArrayRead returned non-NULL for zero-sized Vector"); 48 CeedVectorRestoreArrayRead(x, &d); 49 CeedVectorTakeArray(x, CEED_MEM_HOST, &c); 50 if (c) printf("CeedVectorTakeArray returned non-NULL for zero-sized Vector"); 51 CeedVectorDestroy(&x); 52 53 CeedDestroy(&ceed); 54 return 0; 55 } 56