* Help : Circular dependency @ 2002-11-25 18:39 prashna 2002-11-25 19:23 ` Robert A Duff 2002-11-25 19:30 ` Jeffrey Carter 0 siblings, 2 replies; 3+ messages in thread From: prashna @ 2002-11-25 18:39 UTC (permalink / raw) Can anybody explain, with example, What is circular dependecy? Thanks ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Help : Circular dependency 2002-11-25 18:39 Help : Circular dependency prashna @ 2002-11-25 19:23 ` Robert A Duff 2002-11-25 19:30 ` Jeffrey Carter 1 sibling, 0 replies; 3+ messages in thread From: Robert A Duff @ 2002-11-25 19:23 UTC (permalink / raw) vashwath@rediffmail.com (prashna) writes: > Can anybody explain, with example, What is circular dependecy? Usually, circular dependency means something like this: with B; package A is ... end A; with A; package B is ... end B; which is illegal in Ada. It would be legal, however, if the "with A;" were moved to the body of B, or the "with B;" were moved to the body of A. - Bob ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Help : Circular dependency 2002-11-25 18:39 Help : Circular dependency prashna 2002-11-25 19:23 ` Robert A Duff @ 2002-11-25 19:30 ` Jeffrey Carter 1 sibling, 0 replies; 3+ messages in thread From: Jeffrey Carter @ 2002-11-25 19:30 UTC (permalink / raw) prashna wrote: > Can anybody explain, with example, What is circular dependecy? with B; package A is type T is (Ay, Has, Tipe, Tee); procedure Op (P1 : in T; P2 : in B.T); end A; with A; package B is type T is (Bee, Has, Tipe, Tee); procedure Op (P1 : in T; P2 : in A.T); end B; A depends on B, and B depends on A. You can remove this by moving one of the type declarations up to a parent package (or moving the operations to a child package): package A is type T is (Ay, Has, Tipe, Tee); end A; with B; package A.Ops is procedure Op (P1 : in T; P2 : in B.T); end A; with A; package B is type T is (Bee, Has, Tipe, Tee); procedure Op (P1 : in T; P2 : in A.T); end B; Now A does not depend on B, and B does not depend on A.Ops, so there is no circularity. -- Jeff Carter "Death awaits you all, with nasty, big, pointy teeth!" Monty Python & the Holy Grail ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2002-11-25 19:30 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2002-11-25 18:39 Help : Circular dependency prashna 2002-11-25 19:23 ` Robert A Duff 2002-11-25 19:30 ` Jeffrey Carter
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