packed3.c

Mac OS X 10.4.9 for x86 Source Code gcc 实现源代码

// { dg-do compile }

// Copyright (C) 2003 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 15 Jul 2003 <[e-mail]>

// Packed fields are unsuitable for direct reference binding.

struct Unpacked { int i; };

void Ref (int &p);
void Ref (Unpacked &p);

struct  __attribute__ ((packed)) Packed
{
  char c;
  int i;
  Unpacked u;
};

void Foo (Packed &p)
{
  Ref (p.i); // { dg-error "cannot bind packed field" "" }
  Ref (p.u.i);
  Ref (p.u); // { dg-error "cannot bind packed field" "" }
}