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 14 CeedInit(argv[1], &ceed); 15 16 CeedVectorCreate(ceed, n, &x); 17 for (CeedInt i=0; i<n; i++) 18 a[i] = 0; 19 a[3] = -3.14; 20 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_USE_POINTER, a); 21 22 // Taking array should return a 23 CeedVectorTakeArray(x, CEED_MEM_HOST, &c); 24 if (fabs(c[3] + 3.14) > 1E-15) 25 // LCOV_EXCL_START 26 printf("Error taking array c[3] = %f", (double)c[3]); 27 // LCOV_EXCL_STOP 28 29 // Getting array should not modify a 30 CeedVectorGetArray(x, CEED_MEM_HOST, &b); 31 b[5] = -3.14; 32 CeedVectorRestoreArray(x, &b); 33 34 if (fabs(a[5] + 3.14) < 1E-15) 35 // LCOV_EXCL_START 36 printf("Error protecting array a[3] = %f", (double)a[3]); 37 // LCOV_EXCL_STOP 38 39 // Note: We do not need to free c because c == a was stack allocated. 40 // If libCEED allocated c, then free() would be required. 41 CeedVectorDestroy(&x); 42 CeedDestroy(&ceed); 43 return 0; 44 } 45