diff options
Diffstat (limited to 'gcc/fortran/decl.c')
| -rw-r--r-- | gcc/fortran/decl.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c index f2e8896..b3c65b7 100644 --- a/gcc/fortran/decl.c +++ b/gcc/fortran/decl.c @@ -1557,6 +1557,20 @@ gfc_verify_c_interop_param (gfc_symbol *sym) "CONTIGUOUS attribute as procedure %qs is BIND(C)", sym->name, &sym->declared_at, sym->ns->proc_name->name); + /* Per F2018, C1557, pointer/allocatable dummies to a bind(c) + procedure that are default-initialized are not permitted. */ + if ((sym->attr.pointer || sym->attr.allocatable) + && sym->ts.type == BT_DERIVED + && gfc_has_default_initializer (sym->ts.u.derived)) + { + gfc_error ("Default-initialized %s dummy argument %qs " + "at %L is not permitted in BIND(C) procedure %qs", + (sym->attr.pointer ? "pointer" : "allocatable"), + sym->name, &sym->declared_at, + sym->ns->proc_name->name); + retval = false; + } + /* Character strings are only C interoperable if they have a length of 1. However, as an argument they are also iteroperable when passed as descriptor (which requires len=: or len=*). */ |