friend2.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 22 行

// PRMS Id: 5189
// Bug: g++ fails to collapse the several declarations of freefoo, so it isn't
// recognized as a friend.
// Build don't link:

extern "C"
void freefoo(void);

class foo {
   friend void freefoo(void);
   protected:
      static void foomem();
   public:
      foo();
      ~foo();
};

void freefoo(void)
{
   foo::foomem();
}