[Patch, Fortran, OOP] PR 49638: [OOP] length parameter is ignored when overriding type bound character functions with constant length.

[Janus Weil]

Hi Thomas, hi all,

2011/8/7 Thomas Koenig <tkoenig@netcologne.de>:
> When extending the values of gfc_dep_compare_expr, we will need to go
> through all its uses (making sure we change == -2 to <= -2).

attached is a patch which makes a start with this.

For now, it changes the return value to "-3" for two cases:
1) different expr_types
2) non-identical variables

I tried to take care of all places which are checking for a return
value of "-2" and I hope I missed none.

Any objections or ok for trunk? (Regtested successfully.)

Cheers,
Janus


2011-08-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/49638
	* dependency.c (gfc_dep_compare_expr): Add new result value "-3".
	(gfc_check_element_vs_section,gfc_check_element_vs_element): Handle
	result value "-3".
        * frontend-passes.c (optimize_comparison): Ditto.
	* interface.c (gfc_check_typebound_override): Ditto.


2011-08-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/49638
	* gfortran.dg/typebound_override_1.f90: Modified.
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