Can you please tell me under what circumstances DEALLOCATE can cause
segmentation fault error? I was developing a program which simulate set
operation. Since the size of set will be relatively small, I have decided
to use pointer with allocate instead of linked list. But, in the following
code, the statement 2 is causing segmentation fault error which I couldn't
understand why. If 2 is causing segmentation fault error, why not the
statement 1?
integer,dimension(:),pointer :: oldset, newset
allocate(oldset(1))
oldset(1) = 1
do,... <===== Go through lists of elem.
if we have to add elem to the newset,
call putElement(newset,oldset,elem)
print *, oldset <====== 1
deallocate(oldset,stat=error) <====== 2
if ( error /= 0 ) then
print *,"Dealloc Error"
stop
end if
oldset=>newset
nullify(newset)
end do
The newset is allocated inside putElement() routine.
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