friend.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 15 行

/* { dg-do compile } */
/* { dg-options -Wredundant-decls } */

/* Test to see if spurious warnings about redundant
   declarations are emiited because of the friend
   declaration.  */

class Foo
{
   friend void bar (Foo);
public:
};

extern void bar (Foo);