1 2 static char help[] = "Tests the signal handler.\n"; 3 4 #include <petscsys.h> 5 6 PetscErrorCode CreateError(int n) 7 { 8 if (n) { 9 PetscCall(CreateError(n - 1)); 10 } else { 11 volatile PetscReal *x = 0; 12 x[0] = 100.; 13 } 14 return PETSC_SUCCESS; 15 } 16 17 int main(int argc, char **argv) 18 { 19 PetscFunctionBeginUser; 20 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 21 PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "Demonstrates how PETSc can trap error interrupts\n")); 22 PetscCall(PetscFPrintf(PETSC_COMM_WORLD, stdout, "The error below is contrived to test the code!\n")); 23 PetscCall(PetscSynchronizedFlush(PETSC_COMM_WORLD, PETSC_STDOUT)); 24 PetscCall(CreateError(5)); 25 PetscCall(PetscFinalize()); 26 return 0; 27 } 28 29 /*TEST 30 31 test: 32 args: -error_output_stdout 33 filter: grep -E "(Caught signal number 11 SEGV|Caught signal number 4 Illegal)" | wc -l 34 TODO: Does not always produce exactly expected output on all systems for all runs 35 36 TEST*/ 37