From compcert Require Export Clightdefs.
Require Export VST.veric.base.
Require Export VST.veric.SeparationLogic.
Require Export VST.msl.Extensionality.
Require Export compcert.lib.Coqlib.
Require Export VST.msl.Coqlib2 VST.veric.coqlib4 VST.floyd.coqlib3.
Require Export VST.veric.juicy_extspec.
Require Export VST.floyd.jmeq_lemmas.
Require Export VST.floyd.find_nth_tactic.
Require Export VST.floyd.val_lemmas.
Require Export VST.floyd.assert_lemmas.
Require VST.floyd.SeparationLogicAsLogicSoundness.
Export SeparationLogicAsLogicSoundness.MainTheorem.
Export SeparationLogicAsLogicSoundness.MainTheorem.CSHL_PracticalLogic.
Export SeparationLogicAsLogicSoundness.MainTheorem.CSHL_PracticalLogic.CSHL_MinimumLogic.
Export SeparationLogicAsLogicSoundness.MainTheorem.CSHL_PracticalLogic.CSHL_MinimumLogic.CSHL_Def.
Export SeparationLogicAsLogicSoundness.MainTheorem.CSHL_PracticalLogic.CSHL_MinimumLogic.CSHL_Defs.
Local Open Scope logic.
Definition extract_exists_pre:
forall {CS: compspecs} {Espec: OracleKind},
forall (A : Type) (P : A -> environ->mpred) c (Delta: tycontext) (R: ret_assert),
(forall x, @semax CS Espec Delta (P x) c R) ->
@semax CS Espec Delta (EX x:A, P x) c R
:= @semax_extract_exists.
Arguments alignof_two_p {env} t.

(* Specifications: *)
Lemma co_alignof_pos: forall co, (co_alignof co > 0)%Z.
Section GET_CO.