arrays + watch window

[Yiorgos Lykidis]

Is there a way to display all the elements of an array which have been
defined with a dimension A(*) (dimension is assumed known from a previous
subroutine)? If someone types the name of the matrix in the watch window
only the first element is shown...! Why is that?

Thanx,
Yiorgox

[Michel OLAGNON]

Just because assuming that size is known is wrong. A(*) means that actual
size in the calling routine doesn't matter to the system, because
the programmer is supposed to be able to know it by some other means.

--
Michel OLAGNON email : Michel....@ifremer.fr
http://www.ifremer.fr/metocean/group/michel/michel_olagnon.htm
http://www.fortran-2000.com/

[Michael Sabielny]

Yiorgos Lykidis wrote:

Because the debugger has no information of the length of the array you are
watching. A(*) ia an assumed size array. Try to modify your routine like
this:

old:
subroutine foo(arr)
implicit none
integer,dimension(*) :: arr

<more code>
end

new:
subroutine foo(dim,arr)
implicit none
integer :: dim
integer,dimension(dim) :: arr

<more code>
end

The new routine passes the length of arr to the subroutine. The debugger now
can display all elements.

Greetings,
Michael
--
Dipl.-Ing. Michael Sabielny
Technical University of Hamburg-Harburg
Department of Theoretical Electrical Engineering
D-21071 Hamburg
Germany

[Yiorgos Lykidis]

> Because the debugger has no information of the length of the array you are
> watching. A(*) ia an assumed size array. Try to modify your routine like
> this:
>
> old:
> subroutine foo(arr)
> implicit none
> integer,dimension(*) :: arr
>
> <more code>
> end
>
> new:
> subroutine foo(dim,arr)
> implicit none
> integer :: dim
> integer,dimension(dim) :: arr
>
> <more code>
> end
>
> The new routine passes the length of arr to the subroutine. The debugger
now
> can display all elements.

Apart from the fact that I will be able to see all the elements in the watch
window, would this kind of approach be more efficient programming than what
I have been doing (dim A(*))???

Yiorgos

[Patrick]

"Yiorgos Lykidis" <lyk...@hotmail.com> wrote in message news:<ajbhne$2uod$1...@ulysses.noc.ntua.gr>...

DIMENSION A(*) does not mean that the program knows the size of the
array. It just means that A is an array, and that the programmer will
have to pay attention to respect the size. The debugger has no
information of the size of A.

For debugging, you can try typing A(1:100), or A(1:something),
depending on how many elements you want to see. I know this works in
CVF, I don't know for other debuggers.

Hope this helps
Pat