/* Deal with I/O statements & related stuff.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Andy Vaught
io_tag;
static const io_tag
- tag_file = { "FILE", " file =", " %e", BT_CHARACTER },
- tag_status = { "STATUS", " status =", " %e", BT_CHARACTER},
+ tag_file = {"FILE", " file =", " %e", BT_CHARACTER },
+ tag_status = {"STATUS", " status =", " %e", BT_CHARACTER},
tag_e_access = {"ACCESS", " access =", " %e", BT_CHARACTER},
tag_e_form = {"FORM", " form =", " %e", BT_CHARACTER},
tag_e_recl = {"RECL", " recl =", " %e", BT_INTEGER},
tag_end = {"END", " end =", " %l", BT_UNKNOWN},
tag_eor = {"EOR", " eor =", " %l", BT_UNKNOWN},
tag_id = {"ID", " id =", " %v", BT_INTEGER},
- tag_pending = {"PENDING", " pending =", " %v", BT_LOGICAL};
+ tag_pending = {"PENDING", " pending =", " %v", BT_LOGICAL},
+ tag_newunit = {"NEWUNIT", " newunit =", " %v", BT_INTEGER};
static gfc_dt *current_dt;
/* If e's rank is zero and e is not an element of an array, it should be
of integer or character type. The integer variable should be
ASSIGNED. */
- if (e->symtree == NULL || e->symtree->n.sym->as == NULL
- || e->symtree->n.sym->as->rank == 0)
+ if (e->rank == 0
+ && (e->expr_type != EXPR_VARIABLE
+ || e->symtree == NULL
+ || e->symtree->n.sym->as == NULL
+ || e->symtree->n.sym->as->rank == 0))
{
if (e->ts.type != BT_CHARACTER && e->ts.type != BT_INTEGER)
{
return SUCCESS;
}
- /* If rank is nonzero, we allow the type to be character under GFC_STD_GNU
- and other type under GFC_STD_LEGACY. It may be assigned an Hollerith
- constant. */
- if (e->ts.type == BT_CHARACTER)
- {
- if (gfc_notify_std (GFC_STD_GNU, "Extension: Character array "
- "in FORMAT tag at %L", &e->where) == FAILURE)
- return FAILURE;
- }
- else
+ /* If rank is nonzero and type is not character, we allow it under GFC_STD_LEGACY.
+ It may be assigned an Hollerith constant. */
+ if (e->ts.type != BT_CHARACTER)
{
if (gfc_notify_std (GFC_STD_LEGACY, "Extension: Non-character "
"in FORMAT tag at %L", &e->where) == FAILURE)
return FAILURE;
+
+ if (e->rank == 0 && e->symtree->n.sym->as->type == AS_ASSUMED_SHAPE)
+ {
+ gfc_error ("Non-character assumed shape array element in FORMAT"
+ " tag at %L", &e->where);
+ return FAILURE;
+ }
+
+ if (e->rank == 0 && e->symtree->n.sym->as->type == AS_ASSUMED_SIZE)
+ {
+ gfc_error ("Non-character assumed size array element in FORMAT"
+ " tag at %L", &e->where);
+ return FAILURE;
+ }
+
+ if (e->rank == 0 && e->symtree->n.sym->attr.pointer)
+ {
+ gfc_error ("Non-character pointer array element in FORMAT tag at %L",
+ &e->where);
+ return FAILURE;
+ }
}
return SUCCESS;
m = match_etag (&tag_convert, &open->convert);
if (m != MATCH_NO)
return m;
+ m = match_out_tag (&tag_newunit, &open->newunit);
+ if (m != MATCH_NO)
+ return m;
return MATCH_NO;
}
gfc_free_expr (open->sign);
gfc_free_expr (open->convert);
gfc_free_expr (open->asynchronous);
+ gfc_free_expr (open->newunit);
gfc_free (open);
}
RESOLVE_TAG (&tag_e_round, open->round);
RESOLVE_TAG (&tag_e_sign, open->sign);
RESOLVE_TAG (&tag_convert, open->convert);
+ RESOLVE_TAG (&tag_newunit, open->newunit);
if (gfc_reference_st_label (open->err, ST_LABEL_TARGET) == FAILURE)
return FAILURE;
}
warn = (open->err || open->iostat) ? true : false;
+
+ /* Checks on NEWUNIT specifier. */
+ if (open->newunit)
+ {
+ if (open->unit)
+ {
+ gfc_error ("UNIT specifier not allowed with NEWUNIT at %C");
+ goto cleanup;
+ }
+
+ if (!(open->file || (open->status
+ && gfc_wide_strncasecmp (open->status->value.character.string,
+ "scratch", 7) == 0)))
+ {
+ gfc_error ("NEWUNIT specifier must have FILE= "
+ "or STATUS='scratch' at %C");
+ goto cleanup;
+ }
+ }
+
/* Checks on the ACCESS specifier. */
if (open->access && open->access->expr_type == EXPR_CONSTANT)
{
if (gfc_reference_st_label (close->err, ST_LABEL_TARGET) == FAILURE)
return FAILURE;
+ if (close->unit->expr_type == EXPR_CONSTANT
+ && close->unit->ts.type == BT_INTEGER
+ && mpz_sgn (close->unit->value.integer) < 0)
+ {
+ gfc_error ("UNIT number in CLOSE statement at %L must be non-negative",
+ &close->unit->where);
+ }
+
return SUCCESS;
}
if (gfc_reference_st_label (fp->err, ST_LABEL_TARGET) == FAILURE)
return FAILURE;
+ if (fp->unit->expr_type == EXPR_CONSTANT
+ && fp->unit->ts.type == BT_INTEGER
+ && mpz_sgn (fp->unit->value.integer) < 0)
+ {
+ gfc_error ("UNIT number in statement at %L must be non-negative",
+ &fp->unit->where);
+ }
+
return SUCCESS;
}
return FAILURE;
}
+ if (e->expr_type == EXPR_CONSTANT && e->ts.type == BT_INTEGER
+ && mpz_sgn (e->value.integer) < 0)
+ {
+ gfc_error ("UNIT number in statement at %L must be non-negative", &e->where);
+ }
+
if (dt->extra_comma
&& gfc_notify_std (GFC_STD_GNU, "Extension: Comma before i/o "
"item list at %L", &dt->extra_comma->where) == FAILURE)