access4.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 28 行

// Build don't link: 
// GROUPS passed access
// (Message bugs/access:3)
// From: [e-mail] (Jamshid Afshar)
// Date:     Wed, 2 Mar 94 18:24:22 CST
// Subject:  g++ 2.5.5 doesn't warn about inaccessible virtual base ctor
// Message-ID: <[e-mail]>

class ForceLeafSterile {
    friend class Sterile;
      ForceLeafSterile() {} // ERROR - 
};

class Sterile : private virtual ForceLeafSterile {
public:
    Sterile() {}
    Sterile(const char* /*blah*/) {}
};

class Illegitimate : public Sterile {
public:
    Illegitimate() {}           // ERROR -  can't access virtual base deflt ctor
    Illegitimate(const char* /*blah*/)
        : ForceLeafSterile() {} // ERROR - can't access default ctor
    Illegitimate(const Illegitimate&)
        {}                      // ERROR - can't access default ctor
};