1 static char help[] = "Tests the signal handler.\n"; 2 3 #include <petscsys.h> 4 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 } 15 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 } 27 28 /*TEST 29 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 34 35 TEST*/ 36