diff options
Diffstat (limited to 'gcc/fortran/interface.c')
| -rw-r--r-- | gcc/fortran/interface.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c index 2a71da7..24698be 100644 --- a/gcc/fortran/interface.c +++ b/gcc/fortran/interface.c @@ -3624,8 +3624,13 @@ gfc_compare_actual_formal (gfc_actual_arglist **ap, gfc_formal_arglist *formal, "at %L", where); return false; } - if (!f->sym->attr.optional - || (in_statement_function && f->sym->attr.optional)) + /* For CLASS, the optional attribute might be set at either location. */ + if (((f->sym->ts.type != BT_CLASS || !CLASS_DATA (f->sym)->attr.optional) + && !f->sym->attr.optional) + || (in_statement_function + && (f->sym->attr.optional + || (f->sym->ts.type == BT_CLASS + && CLASS_DATA (f->sym)->attr.optional)))) { if (where) gfc_error ("Missing actual argument for argument %qs at %L", |