[Bug fortran/34345] gfortran compiles SLATEC library, but the executable fails

["kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #3 from kargl at gcc dot gnu dot org  2007-12-06 04:39 -------
(In reply to comment #2)
> Reading through PR 18026 I am convinced this is a duplicate.  We need to decide
> how we want to handle this situation.  It looks like at least one other
> compiler treats the boz as an integer and converts to real for the case of f95
> and treats it as a direct map to real for f2003.
> 
> Should we take a vote?

My vote is gfortran is doing the correct thing. The user
needs to read and understand the standard.  Then, the
the user can use TRANSFER() as intended by J3.

In particular, a DATA statement is essentially an assignment.
In an assignment the RHS is evaluated without reference to the
LHS type, kind type parameter, or rank.

If you want to promote a BOZ to some glorified representation 
of any numeric value, then you'll need to introduce BT_BOZ,
and add a member to gfc_symbol to hold the BOZ string and do
the conversion to the what the user wants at the last moment.
This, of course, violates the independence of the RHS-LHS 
assumption.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34345