2: static char help[] = "Tests catching of floating point exceptions.\n\n"; 4: #include <petscsys.h> 6: int CreateError(PetscReal x) 7: { 8: x = 1.0/x; 9: PetscPrintf(PETSC_COMM_SELF,"x = %g\n",(double)x); 10: return 0; 11: } 13: int main(int argc,char **argv) 14: { 15: PetscInitialize(&argc,&argv,(char*)0,help); 16: PetscPrintf(PETSC_COMM_SELF,"This is a contrived example to test floating pointing\n"); 17: PetscPrintf(PETSC_COMM_SELF,"It is not a true error.\n"); 18: PetscPrintf(PETSC_COMM_SELF,"Run with -fp_trap to catch the floating point error\n"); 19: CreateError(0.0); 20: return 0; 21: } 23: /* 25: Because this example may produce different output on different machines we filter out everything. 26: This makes the test ineffective but currently we don't have a good way to know which machines should handle 27: the floating point exceptions properly. 29: */ 30: /*TEST 32: test: 33: args: -fp_trap -error_output_stdout 34: filter: Error: true 36: TEST*/