1 static char help[] = "Demonstrates PetscDataTypeFromString().\n\n"; 2 3 #include <petscsys.h> 4 int main(int argc, char **argv) 5 { 6 PetscDataType dtype; 7 PetscBool found; 8 9 /* 10 Every PETSc routine should begin with the PetscInitialize() routine. 11 argc, argv - These command line arguments are taken to extract the options 12 supplied to PETSc and options supplied to MPI. 13 help - When PETSc executable is invoked with the option -help, 14 it prints the various options that can be applied at 15 runtime. The user can use the "help" variable place 16 additional help messages in this printout. 17 */ 18 PetscFunctionBeginUser; 19 PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 20 21 PetscCall(PetscDataTypeFromString("Scalar", &dtype, &found)); 22 PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find scalar datatype"); 23 PetscCheck(dtype == PETSC_SCALAR, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for scalar"); 24 25 PetscCall(PetscDataTypeFromString("INT", &dtype, &found)); 26 PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find int datatype"); 27 PetscCheck(dtype == PETSC_INT, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for int"); 28 29 PetscCall(PetscDataTypeFromString("real", &dtype, &found)); 30 PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find real datatype"); 31 PetscCheck(dtype == PETSC_REAL, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for real"); 32 33 PetscCall(PetscDataTypeFromString("abogusdatatype", &dtype, &found)); 34 PetscCheck(!found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found a bogus datatype"); 35 36 PetscCall(PetscFinalize()); 37 return 0; 38 } 39 40 /*TEST 41 42 test: 43 output_file: output/empty.out 44 45 TEST*/ 46