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authorjanus <janus@138bc75d-0d04-0410-961f-82ee72b054a4>2011-10-18 10:48:12 +0000
committerjanus <janus@138bc75d-0d04-0410-961f-82ee72b054a4>2011-10-18 10:48:12 +0000
commit2564c57aa75e21e790b92f3add7507381d2ebbc9 (patch)
tree148eaa9b42a6e2b9cba8c5f9681b188b9ea70790 /gcc/fortran/decl.c
parent326e339126fb6755a3ebaf6b932e0c2eca8745d8 (diff)
downloadgcc-2564c57aa75e21e790b92f3add7507381d2ebbc9.tar.gz
2011-10-18 Janus Weil <janus@gcc.gnu.org>
PR fortran/47023 * decl.c (verify_c_interop_param): Renamed to 'gfc_verify_c_interop_param'. Add error message for polymorphic arguments. (verify_c_interop): Renamed to 'gfc_verify_c_interop'. Reject polymorphic variables. (verify_bind_c_sym): Renamed 'verify_c_interop'. * gfortran.h (verify_c_interop,verify_c_interop_param): Renamed. * check.c (gfc_check_sizeof): Ditto. * resolve.c (gfc_iso_c_func_interface,resolve_fl_procedure): Ditto. * symbol.c (verify_bind_c_derived_type): Ditto. 2011-10-18 Janus Weil <janus@gcc.gnu.org> PR fortran/47023 * gfortran.dg/iso_c_binding_class.f03: New. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@180130 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fortran/decl.c')
-rw-r--r--gcc/fortran/decl.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c
index 9f3a39e5660..2dd38b9485e 100644
--- a/gcc/fortran/decl.c
+++ b/gcc/fortran/decl.c
@@ -961,7 +961,7 @@ get_proc_name (const char *name, gfc_symbol **result, bool module_fcn_entry)
across platforms. */
gfc_try
-verify_c_interop_param (gfc_symbol *sym)
+gfc_verify_c_interop_param (gfc_symbol *sym)
{
int is_c_interop = 0;
gfc_try retval = SUCCESS;
@@ -1000,20 +1000,24 @@ verify_c_interop_param (gfc_symbol *sym)
{
if (sym->ns->proc_name->attr.is_bind_c == 1)
{
- is_c_interop =
- (verify_c_interop (&(sym->ts))
- == SUCCESS ? 1 : 0);
+ is_c_interop = (gfc_verify_c_interop (&(sym->ts)) == SUCCESS ? 1 : 0);
if (is_c_interop != 1)
{
/* 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 "
+ gfc_error ("Variable '%s' at %L is a dummy argument to the "
+ "BIND(C) 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,
sym->ts.u.derived->name);
+ else if (sym->ts.type == BT_CLASS)
+ gfc_error ("Variable '%s' at %L is a dummy argument to the "
+ "BIND(C) procedure '%s' but is not C interoperable "
+ "because it is polymorphic",
+ sym->name, &(sym->declared_at),
+ sym->ns->proc_name->name);
else
gfc_warning ("Variable '%s' at %L is a parameter to the "
"BIND(C) procedure '%s' but may not be C "
@@ -3711,11 +3715,13 @@ set_com_block_bind_c (gfc_common_head *com_block, int is_bind_c)
/* Verify that the given gfc_typespec is for a C interoperable type. */
gfc_try
-verify_c_interop (gfc_typespec *ts)
+gfc_verify_c_interop (gfc_typespec *ts)
{
if (ts->type == BT_DERIVED && ts->u.derived != NULL)
return (ts->u.derived->ts.is_c_interop || ts->u.derived->attr.is_bind_c)
? SUCCESS : FAILURE;
+ else if (ts->type == BT_CLASS)
+ return FAILURE;
else if (ts->is_c_interop != 1)
return FAILURE;
@@ -3788,7 +3794,7 @@ verify_bind_c_sym (gfc_symbol *tmp_sym, gfc_typespec *ts,
the given ts (current_ts), so look in both. */
if (tmp_sym->ts.type != BT_UNKNOWN || ts->type != BT_UNKNOWN)
{
- if (verify_c_interop (&(tmp_sym->ts)) != SUCCESS)
+ if (gfc_verify_c_interop (&(tmp_sym->ts)) != SUCCESS)
{
/* See if we're dealing with a sym in a common block or not. */
if (is_in_common == 1)