1: static char help[] = "Tests the signal handler.\n"; 3: #include <petscsys.h> 5: PetscErrorCode CreateError(int n) 6: { 7: if (n) { 8: PetscCall(CreateError(n - 1)); 9: } else { 10: volatile PetscReal *x = 0; 11: x[0] = 100.; 12: } 13: return PETSC_SUCCESS; 14: } 16: int main(int argc, char **argv) 17: { 18: PetscFunctionBeginUser; 19: PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 20: PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "Demonstrates how PETSc can trap error interrupts\n")); 21: PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "The error below is contrived to test the code!\n")); 22: PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD, PETSC_STDOUT)); 23: PetscCall(CreateError(5)); 24: PetscCall(PetscFinalize()); 25: return 0; 26: } 28: /*TEST 30: test: 31: args: -error_output_stdout 32: filter: grep -E "(Caught signal number 11 SEGV|Caught signal number 4 Illegal)" | wc -l 33: TODO: Does not always produce exactly expected output on all systems for all runs 35: TEST*/