Re: Ada Help

[jakrzy@ss5.magec.com (James A. Krzyzanowski)]

alexander m nolasco (anolas01@solix.fiu.edu) wrote:

: I created a generic binary search tree.  I declared BST as limited 
: private.  This generic pack will be implemented in a SET, but I have to 
: have access to BST type...

: I have done the following..

: type SET_TYPE is new T.BST_TYPE --Where T is an instantiation of BST(sp)

: It compiles, but any procedure that uses the OUT mode with will not compile..
: any help!?

From the Language Reference Manual:

paragraph 7.4.4(1)

"A limited type is a type for which neither ASSIGNMENT nor the predefined
comparison for equality and inequality is implicitly declared."

paragraph 7.4.4(4)

"For a formal parameter whose type is limited and whose declararation
occurs in an explicit subprogram declaration, the mode OUT is only allowed
if the type is private...The corresponding full type must not be limited
if the mode OUT is used for any such formal parameter."

What you need to do is use IN OUT and when you assign the "OUT" parameter
you need to define a function or procedure that EXPLICITLY makes that
assignment.

--
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James A. Krzyzanowski - Senior Software Engineer - AFATDS
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