1 2 static char help[] = "Demonstrates PetscDataTypeFromString().\n\n"; 3 4 #include <petscsys.h> 5 int main(int argc,char **argv) 6 { 7 PetscDataType dtype; 8 PetscBool found; 9 10 /* 11 Every PETSc routine should begin with the PetscInitialize() routine. 12 argc, argv - These command line arguments are taken to extract the options 13 supplied to PETSc and options supplied to MPI. 14 help - When PETSc executable is invoked with the option -help, 15 it prints the various options that can be applied at 16 runtime. The user can use the "help" variable place 17 additional help messages in this printout. 18 */ 19 PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 20 21 PetscCall(PetscDataTypeFromString("Scalar",&dtype,&found)); 22 PetscCheck(found,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Did not find scalar datatype"); 23 PetscCheckFalse(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 PetscCheckFalse(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 PetscCheckFalse(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 44 TEST*/ 45