2007-08-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/31879
PR fortran/31197
PR fortran/31258
PR fortran/32703
* gfortran.h : Add prototype for gfc_resolve_substring_charlen.
* resolve.c (gfc_resolve_substring_charlen): New function.
(resolve_ref): Call gfc_resolve_substring_charlen.
(gfc_resolve_character_operator): New function.
(gfc_resolve_expr): Call the new functions in cases where the
character length is missing.
* iresolve.c (cshift, eoshift, merge, pack, reshape, spread,
transpose, unpack): Call gfc_resolve_substring_charlen for
source expressions that are character and have a reference.
* trans.h (gfc_trans_init_string_length) Change name to
gfc_conv_string_length; modify references in trans-expr.c,
trans-array.c and trans-decl.c.
* trans-expr.c (gfc_trans_string_length): Handle case of no
backend_decl.
(gfc_conv_aliased_arg): Remove code for treating substrings
and replace with call to gfc_trans_string_length.
* trans-array.c (gfc_conv_expr_descriptor): Remove code for
treating strings and call gfc_trans_string_length instead.
2007-08-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/31879
* gfortran.dg/char_length_7.f90: New test.
* gfortran.dg/char_length_9.f90: New test.
* gfortran.dg/char_assign_1.f90: Add extra warning.
PR fortran/31197
PR fortran/31258
* gfortran.dg/char_length_8.f90: New test.
From-SVN: r127939
