Require Export VST.veric.mapsto_memory_block.
Local Open Scope pred.

(* Specifications: *)
Lemma mapsto_unsigned_signed:
forall sign1 sign2 sh sz v i,
mapsto sh (Tint sz sign1 noattr) v (Vint (Cop.cast_int_int sz sign1 i)) =
mapsto sh (Tint sz sign2 noattr) v (Vint (Cop.cast_int_int sz sign2 i)).
Lemma mapsto_tuint_tint:
forall sh, mapsto sh tuint = mapsto sh tint.
Lemma tc_val_pointer_nullval:
forall t, tc_val (tptr t) nullval.