xref: /petsc/src/sys/tests/ex1.c (revision a69119a591a03a9d906b29c0a4e9802e4d7c9795)
1 
2 static char help[] = "Demonstrates PETSc error handlers.\n";
3 
4 #include <petscsys.h>
5 
6 int CreateError(int n) {
7   PetscCheck(n, PETSC_COMM_SELF, PETSC_ERR_USER, "Error Created");
8   PetscCall(CreateError(n - 1));
9   return 0;
10 }
11 
12 int main(int argc, char **argv) {
13   PetscFunctionBeginUser;
14   PetscCall(PetscInitialize(&argc, &argv, (char *)0, help));
15   PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "Demonstrates PETSc Error Handlers\n"));
16   PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "The error is a contrived error to test error handling\n"));
17   PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD, PETSC_STDOUT));
18   PetscCall(CreateError(5));
19   PetscCall(PetscFinalize());
20   return 0;
21 }
22 
23 /*TEST
24 
25  # Testing errors so only look for errors
26    test:
27      args: -error_output_stdout
28      filter: egrep "(PETSC ERROR)" | egrep "(Error Created|CreateError\(\)|main\(\))" | cut -f1,2,3,4,5,6 -d " "
29      TODO:  Does not always produce exactly expected output on all systems for all runs
30 
31 TEST*/
32