104   PetscInt *nend;  in PetscMallocValidate()  local
129     nend = (PetscInt *)(a + head->size);  in PetscMallocValidate()
130     if (*nend != COOKIE_VALUE) {  in PetscMallocValidate()
133       if (*nend == ALREADY_FREED) {  in PetscMallocValidate()
257   PetscInt *nend;  in PetscTrFreeDefault()  local
274   nend = (PetscInt *)(ahead + head->size);  in PetscTrFreeDefault()
275   if (*nend != COOKIE_VALUE) {  in PetscTrFreeDefault()
277     if (*nend == ALREADY_FREED) {  in PetscTrFreeDefault()
295   *nend = ALREADY_FREED;  in PetscTrFreeDefault()
325   PetscInt *nend;  in PetscTrReallocDefault()  local
354   nend = (PetscInt *)(ahead + head->size);  in PetscTrReallocDefault()
355   if (*nend != COOKIE_VALUE) {  in PetscTrReallocDefault()
357     if (*nend == ALREADY_FREED) {  in PetscTrReallocDefault()