Actual source code: ex49.c
2: static char help[] = "Demonstrates PetscDataTypeFromString().\n\n";
4: #include <petscsys.h>
5: int main(int argc, char **argv)
6: {
7: PetscDataType dtype;
8: PetscBool found;
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: PetscFunctionBeginUser;
20: PetscCall(PetscInitialize(&argc, &argv, (char *)0, help));
22: PetscCall(PetscDataTypeFromString("Scalar", &dtype, &found));
23: PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find scalar datatype");
24: PetscCheck(dtype == PETSC_SCALAR, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for scalar");
26: PetscCall(PetscDataTypeFromString("INT", &dtype, &found));
27: PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find int datatype");
28: PetscCheck(dtype == PETSC_INT, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for int");
30: PetscCall(PetscDataTypeFromString("real", &dtype, &found));
31: PetscCheck(found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Did not find real datatype");
32: PetscCheck(dtype == PETSC_REAL, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found wrong datatype for real");
34: PetscCall(PetscDataTypeFromString("abogusdatatype", &dtype, &found));
35: PetscCheck(!found, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Found a bogus datatype");
37: PetscCall(PetscFinalize());
38: return 0;
39: }
41: /*TEST
43: test:
45: TEST*/