error ("%<constexpr%> cannot be used for type declarations");
}
- if (declspecs->attributes)
+ if (declspecs->attributes && declared_type)
{
location_t loc = input_location;
if (!CLASS_TYPE_P (declared_type)
return error_mark_node;
}
+ if (warn_zero_as_null_pointer_constant
+ && c_inhibit_evaluation_warnings == 0
+ && (POINTER_TYPE_P (decl_type) || TYPE_PTR_TO_MEMBER_P (decl_type))
+ && null_ptr_cst_p (arg)
+ && !NULLPTR_TYPE_P (TREE_TYPE (arg)))
+ {
+ warning (OPT_Wzero_as_null_pointer_constant,
+ "zero as null pointer constant");
+ return nullptr_node;
+ }
+
/* [dcl.fct.default]
Local variables shall not be used in default argument