INTERFACE M3Assert;

(***************************************************************************)
(*                      Copyright (C) Olivetti 1989                        *)
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(* warranties with respect to this software, whether expressed or implied  *)
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(***************************************************************************)

PROCEDURE Check(assertion: BOOLEAN) RAISES {};

PROCEDURE Fail() RAISES {};

(* 'Check' and 'Fail' are used by the compiler to check that things are as
they should be. 'Fail' causes the compiler to halt with a brief 'Assertion
failed' message. 'Check' is a no-op if 'assertion' is TRUE, otherwise it
calls 'Fail' *)

END M3Assert.