1c4762a1bSJed Brown static char help[] = "Tests checking pointers.\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscsys.h> 4c4762a1bSJed Brown #include <petsc/private/petscimpl.h> 5c4762a1bSJed Brown 6c4762a1bSJed Brown int main(int argc, char *args[]) 7c4762a1bSJed Brown { 8c4762a1bSJed Brown PetscInt *ptr; 9c4762a1bSJed Brown 10*327415f7SBarry Smith PetscFunctionBeginUser; 119566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &args, (char*) 0, help)); 12c4762a1bSJed Brown if (!PETSC_RUNNING_ON_VALGRIND) { /* PetscCheckPointer always returns TRUE when running on Valgrind */ 139566063dSJacob Faibussowitsch PetscCall(PetscMalloc(1024 * 1024 * 8,&ptr)); /* Almost certainly larger than MMAP_THRESHOLD (128 KiB by default) */ 149566063dSJacob Faibussowitsch if (!PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook valid pointer %p for invalid pointer\n",(void*)ptr)); 159566063dSJacob Faibussowitsch PetscCall(PetscFree(ptr)); 169566063dSJacob Faibussowitsch if (PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook NULL pointer for valid pointer\n")); 17c4762a1bSJed Brown ptr = (PetscInt*) ~(PETSC_UINTPTR_T)0xf; /* Pointer will almost certainly be invalid */ 189566063dSJacob Faibussowitsch if (PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook invalid pointer %p for valid\n",(void*)ptr)); 19c4762a1bSJed Brown } 209566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 21b122ec5aSJacob Faibussowitsch return 0; 22c4762a1bSJed Brown } 23c4762a1bSJed Brown 24c4762a1bSJed Brown /*TEST 25c4762a1bSJed Brown 26c4762a1bSJed Brown test: 27c4762a1bSJed Brown args: -check_pointer_intensity 1 28c4762a1bSJed Brown TODO: reports Mistook invalid pointer 0xfffffffffffffff0 for valid or Free'd pointer is still accessible 29c4762a1bSJed Brown 30c4762a1bSJed Brown TEST*/ 31