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*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &args, (char*) 0, help)); 11c4762a1bSJed Brown if (!PETSC_RUNNING_ON_VALGRIND) { /* PetscCheckPointer always returns TRUE when running on Valgrind */ 12*9566063dSJacob Faibussowitsch PetscCall(PetscMalloc(1024 * 1024 * 8,&ptr)); /* Almost certainly larger than MMAP_THRESHOLD (128 KiB by default) */ 13*9566063dSJacob Faibussowitsch if (!PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook valid pointer %p for invalid pointer\n",(void*)ptr)); 14*9566063dSJacob Faibussowitsch PetscCall(PetscFree(ptr)); 15*9566063dSJacob Faibussowitsch if (PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook NULL pointer for valid pointer\n")); 16c4762a1bSJed Brown ptr = (PetscInt*) ~(PETSC_UINTPTR_T)0xf; /* Pointer will almost certainly be invalid */ 17*9566063dSJacob Faibussowitsch if (PetscCheckPointer(ptr,PETSC_INT)) PetscCall(PetscPrintf(PETSC_COMM_SELF,"Mistook invalid pointer %p for valid\n",(void*)ptr)); 18c4762a1bSJed Brown } 19*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 20b122ec5aSJacob Faibussowitsch return 0; 21c4762a1bSJed Brown } 22c4762a1bSJed Brown 23c4762a1bSJed Brown /*TEST 24c4762a1bSJed Brown 25c4762a1bSJed Brown test: 26c4762a1bSJed Brown args: -check_pointer_intensity 1 27c4762a1bSJed Brown TODO: reports Mistook invalid pointer 0xfffffffffffffff0 for valid or Free'd pointer is still accessible 28c4762a1bSJed Brown 29c4762a1bSJed Brown TEST*/ 30