deallocate function in VHDL

[Arvind Kumar]

Hi all,
While using deallocate function in my vhdl source, modelsim gives
me this error.

ERROR: 2 subprograms named "deallocate" are valid in this context

Can someone quickly tell me why is this error message generated?? I
searched the library to see where is this function defined. But
couldn't find any. This is included automatically. Waiting for clues..

Thanks in advance.
Arvind

[David Bishop]

Check your package definitions. You apparently have two functions
named "deallocate" which are visible in this context. The rule in
VHDL is that if there are two things named the same visible at the
same time, then NEITHER are visible.

Two ways to fix this:
1) Call out the function explicitly with libname.packagename.deallocate
2) Use the -explicit switch in Modeltech when you compile.

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[Andreas Gieriet]

Try the -explicit option.

...and/or show us your offending code.

Andi
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Arvind Kumar schrieb:

[Mike Treseler]

Arvind Kumar wrote:

> While using deallocate function in my vhdl source, modelsim gives
> me this error.
>
> ERROR: 2 subprograms named "deallocate" are valid in this context

Comment out USE clauses one at a time to find
the location of the duplicate declaration.
If it's your code, consider a name change.

There is a predefined VHDL function

deallocate(access_type_object)

-- Mike Treseler

[Mike Treseler]

Arvind:

This was intended for this thread from Paul Mariott
---------------------------

> I had an error like this when I used an alias to the actual type of the
> object I was trying to deallocate. I did this because I wanted to build
> a general-purpose binary tree and use an alias to the actual type of
> the leaves and branches of the tree. I was unable to resolve this problem
> (I was using modelsim). My only solution was to remove the alias declaration.
> I had no problems with "new" though. I figured it must be a modelsim bug
> but didn't persue the issue.

> Hope this helps,

> Paul.