- In
computer programming, a
postcondition is a
condition or
predicate that must
always be true just
after the
execution of some
section of code or after...
- the
ordinary definition of
abstract data
types with preconditions,
postconditions and invariants.
These specifications are
referred to as "contracts"...
- weakest-preconditions, or runs
forward in the case of strongest-
postconditions. For a
statement S and a
postcondition R, a
weakest precondition is a
predicate Q such...
- and Q {\displaystyle Q} the
postcondition: when the
precondition is met,
executing the
command establishes the
postcondition. ****ertions are
formulae in...
-
given by a
precondition Ps and a
postcondition Qs is
stronger than one
given by a
precondition Pt and a
postcondition Qt (formally: (Ps, Qs) ⇒ (Pt, Qt))...
- of
design by contract.
Design by
contract also
includes notions of
postcondition and
class invariant. The
precondition for any
routine defines any constraints...
- that it
considers the
interaction of
subtyping with preconditions,
postconditions and invariants. Liskov's
notion of a
behavioural subtype defines a notion...
-
totally correct with
respect to a
precondition P {\displaystyle P} and
postcondition Q {\displaystyle Q} if any
execution started in a
state satisfying P...
-
engineering is
design by
contract (DbC), in
which ****ertions, preconditions,
postconditions, and
class invariants are emplo**** to help
ensure program correctness...
-
describes the
meaning of a
program fragment as the
function transforming a
postcondition to the
precondition needed to
establish it. ****ertion (computing) Winskel...
