[Bug fortran/45211] C interoperable error when compiling BIND(C) function in a module.
--- Comment #5 from burnus at gcc dot gnu dot org 2010-08-15 16:23 --- FIXED on the trunk (4.6). Thanks for the bug report! (I do not intent to backport the patch to the 4.4/4.5 branch; tell me if you think it should be applied there as well.) -- burnus at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45211
[Bug fortran/45211] C interoperable error when compiling BIND(C) function in a module.
--- Comment #4 from burnus at gcc dot gnu dot org 2010-08-15 16:21 ---
Subject: Bug 45211
Author: burnus
Date: Sun Aug 15 16:20:56 2010
New Revision: 163264
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163264
Log:
2010-08-15 Tobias Burnus
PR fortran/45211
* decl.c (verify_c_interop_param): Remove superfluous space (" ").
(verify_c_interop): Handle unresolved DT with bind(C).
2010-08-15 Tobias Burnus
PR fortran/45211
* gfortran.dg/bind_c_usage_21.f90: New.
* gfortran.dg/bind_c_dts_3.f03: Update dg-error.
Added:
trunk/gcc/testsuite/gfortran.dg/bind_c_usage_21.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/decl.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/bind_c_dts_3.f03
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45211
[Bug fortran/45211] C interoperable error when compiling BIND(C) function in a module.
--- Comment #3 from burnus at gcc dot gnu dot org 2010-08-14 16:24 ---
Cf.
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/887251d8cd64eb02
Lightly tested patch. The ts.is_c_interop is only set when via
verify_bind_c_derived_type, which is called by resolve.c - and thus comes too
late.
I am not sure whether this now allows DT which are not BIND(C) and whether one
thus should add an !attr.resolved, but I assume that incompatibilities between
the BIND(C) attribute for the DT and the actual DT will be found at resolution
time. Thus, the patch should be fine.
Index: gcc/fortran/decl.c
===
--- gcc/fortran/decl.c (Revision 163239)
+++ gcc/fortran/decl.c (Arbeitskopie)
@@ -991,7 +991,7 @@ verify_c_interop_param (gfc_symbol *sym)
/* Make personalized messages to give better feedback. */
if (sym->ts.type == BT_DERIVED)
gfc_error ("Type '%s' at %L is a parameter to the BIND(C) "
- " procedure '%s' but is not C interoperable "
+ "procedure '%s' but is not C interoperable "
"because derived type '%s' is not C interoperable",
sym->name, &(sym->declared_at),
sym->ns->proc_name->name,
@@ -3612,7 +3612,8 @@ gfc_try
verify_c_interop (gfc_typespec *ts)
{
if (ts->type == BT_DERIVED && ts->u.derived != NULL)
-return (ts->u.derived->ts.is_c_interop ? SUCCESS : FAILURE);
+return (ts->u.derived->ts.is_c_interop || ts->u.derived->attr.is_bind_c)
+ ? SUCCESS : FAILURE;
else if (ts->is_c_interop != 1)
return FAILURE;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45211
[Bug fortran/45211] C interoperable error when compiling BIND(C) function in a module.
--- Comment #2 from brtnfld at hdfgroup dot org 2010-08-09 15:02 --- If the type declaration is moved to the module scope the code compiles. MODULE liter_cb_mod USE ISO_C_BINDING TYPE, BIND(C) :: MYFTYPE INTEGER(C_INT) :: I, J REAL(C_FLOAT) :: S END TYPE MYFTYPE CONTAINS FUNCTION liter_cb() bind(C) USE ISO_C_BINDING IMPLICIT NONE INTEGER(c_int) liter_cb TYPE(MYFTYPE) :: link_info liter_cb = 0 END FUNCTION liter_cb END MODULE liter_cb_mod There was a discussion about the matter in comp.lang.fortran under the topic "BIND(C) functions in a module error" as to the source of the problem. Since there seems to be a work around I downgraded the severity. -- brtnfld at hdfgroup dot org changed: What|Removed |Added Severity|critical|normal http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45211
[Bug fortran/45211] C interoperable error when compiling BIND(C) function in a module.
--- Comment #1 from dominiq at lps dot ens dot fr 2010-08-06 17:26 --- Confirmed also with trunk. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45211
