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Uninitialised variable not detected with /64 /checkmate

 
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mecej4



Joined: 31 Oct 2006
Posts: 1561

PostPosted: Sat Mar 20, 2021 2:19 pm    Post subject: Uninitialised variable not detected with /64 /checkmate Reply with quote

FTN95 8.70 on Windows 10-64, compiling with /checkmate for 32-bit, for the following test program, detects the undefined variable -- hardly surprising.

With /64 /checkmate, however, the bug goes undetected, and the program prints 0.0.

Code:
program Uninit
   implicit none
   integer , dimension(2,201) :: iv

   print *,iv(2,201)
   stop

end program Uninit


Tinkering with the bounds of IV and modifying the indices in the PRINT statement to match, e.g., (2,101) in both places, may make the bug go away (the reference to the undefined array element gets detected).

This bug may be related to the one that I reported a few days ago: http://forums.silverfrost.com/viewtopic.php?t=4431 .
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DanRRight



Joined: 10 Mar 2008
Posts: 2446
Location: South Pole, Antarctica

PostPosted: Sun Mar 21, 2021 1:48 pm    Post subject: Reply with quote

Mecej4,
We users definitely owe you for all the bug hunting and reporting you are doing!
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mecej4



Joined: 31 Oct 2006
Posts: 1561

PostPosted: Sun Mar 21, 2021 2:59 pm    Post subject: Reply with quote

Not really, Dan, since I am also learning from the posts from the forum members, including yourself.

However, thanks for your kind comment.
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7095
Location: Salford, UK

PostPosted: Mon Mar 22, 2021 9:48 am    Post subject: Reply with quote

Thanks mecej4. I have added this to the list.
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7095
Location: Salford, UK

PostPosted: Wed Mar 31, 2021 11:24 am    Post subject: Reply with quote

This has now been fixed for the next release of FTN95.
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