covariant12.c

来自「linux下编程用 编译软件」· C语言 代码 · 共 19 行

// Copyright (C) 2004 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 27 Feb 2005<[e-mail]>

// PR 20232: ICE on invalid

struct T { };

struct S;

struct B
{
  virtual T *Foo (); // { dg-error "overriding" "" }
};

struct D : B
{
  virtual S *Foo (); // { dg-error "invalid covariant" "" }
};