[Bug fortran/20520] allocatable arrays used without being allocated without a warning

[pinskia at gcc dot gnu dot org]

--- Additional Comments From pinskia at gcc dot gnu dot org  2005-03-17 
17:37 ---
Confirmed, but this is valid code (yes undefined).  Even ICC 8.1 accepts the 
code without warnings or 
errors.

-- 
   What|Removed |Added

   Severity|normal  |enhancement
 Status|UNCONFIRMED |NEW
 Ever Confirmed||1
   Keywords||diagnostic
   Last reconfirmed|-00-00 00:00:00 |2005-03-17 17:37:26
   date||
Summary|allocatable arrays may be   |allocatable arrays used
   |used without being allocated|without being allocated
   ||without a warning


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20520

[Bug fortran/20520] allocatable arrays used without being allocated without a warning

[ebertakis at gmail dot com]

--- Additional Comments From ebertakis at gmail dot com  2005-03-17 19:07 
---
(In reply to comment #1)

I tried it in Compaq Visual Fortran Professional Edition 6.5 and indeed the
compiler accepts the code. The debugger though will display an error message
indicating the line a(1)=2*b(1) and saying that the array bounds were 
exceeded.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20520

[Bug fortran/20520] allocatable arrays used without being allocated without a warning

[kargl at gcc dot gnu dot org]

--- Additional Comments From kargl at gcc dot gnu dot org  2005-03-17 19:46 
---
www.lahey.com also compiles the code.  It does issues 2 warnings about using
an unitialized variable and a variable set bu never used.  As Andrew said,
you are in the area of undefined behavior, which means a compiler can do
anything wants.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20520