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[PATCH] deferred-shape vs assumed-shape
Steve Kargl sgk@troutmask.apl.washington.edu
Wed Apr 1 20:04:43 GMT 2020
See
https://stackoverflow.com/questions/60972134/whats-wrong-with-the-following-fortran-code-gfortran-dtio-dummy-argument-at
Is A(:) a deferred-shape array or an assumed-shape array? The
answer of course depends on context.
This patch fixes the issue found at the above URL.
Index: gcc/fortran/interface.c
===================================================================
--- gcc/fortran/interface.c (revision 280157)
+++ gcc/fortran/interface.c (working copy)
@@ -4916,10 +4916,15 @@ check_dtio_arg_TKR_intent (gfc_symbol *fsym, bool type
|| ((type != BT_CLASS) && fsym->attr.dimension)))
gfc_error ("DTIO dummy argument at %L must be a scalar",
&fsym->declared_at);
- else if (rank == 1
- && (fsym->as == NULL || fsym->as->type != AS_ASSUMED_SHAPE))
- gfc_error ("DTIO dummy argument at %L must be an "
- "ASSUMED SHAPE ARRAY", &fsym->declared_at);
+ else if (rank == 1)
+ {
+ if (fsym->as == NULL
+ || !(fsym->as->type == AS_ASSUMED_SHAPE
+ || (fsym->as->type == AS_DEFERRED && fsym->attr.dummy
+ && !fsym->attr.allocatable && !fsym->attr.pointer)))
+ gfc_error ("DTIO dummy argument at %L must be an "
+ "ASSUMED-SHAPE ARRAY", &fsym->declared_at);
+ }
if (type == BT_CHARACTER && fsym->ts.u.cl->length != NULL)
gfc_error ("DTIO character argument at %L must have assumed length",
--
Steve
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