http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49076
Summary: ASSOCIATE: Array descriptor passed to explicit-shaped
dummy
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: bur...@gcc.gnu.org
CC: do...@gcc.gnu.org
Reported by Andrew Baldwin at
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/b1ff1e3da48e6b27
The following program prints with gfortran:
3 4
3 4
33275912 0
With ifort 12 - and reportedly with NAG 5.2, it prints:
3 4
3 4
3 4
If one looks at the dump, one sees that in associated the function is called
as:
print_int (&bar);
That's both the case for the explicit-shape "i(2)" and for an assumed-shape
"i(:)". As "&bar" is the address of the descriptor, it works with assumed-shape
arrays - and fails with assumed-size/explicit-size arrays.
subroutine print_int (i)
integer, intent (in) :: i(2)
print *, i
end subroutine print_int
program main
interface
subroutine print_int (i)
integer, intent (in) :: i(2)
end subroutine print_int
end interface
integer, allocatable :: foo(:,:)
allocate (foo(2,2))
foo(:,1) = [1, 2]
foo(:,2) = [3, 4]
call print_int (foo(:,2))
associate (bar => foo(:,2))
print *, bar
call print_int (bar)
end associate
end program
