Actual source code: ex49.c
1: static char help[] = "Demonstrates PetscDataTypeFromString().\n\n";
3: #include <petscsys.h>
4: int main(int argc, char **argv)
5: {
6: PetscDataType dtype;
7: PetscBool found;
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, (char *)0, help));
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");
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");
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");
33: PetscCall(PetscDataTypeFromString("abogusdatatype", &dtype, &found));
34: PetscCheck(!found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found a bogus datatype");
36: PetscCall(PetscFinalize());
37: return 0;
38: }
40: /*TEST
42: test:
44: TEST*/