// 1 filename:cpp2011-11-2.cpp
// ver 0.1 June.15, 2014
//
// 2 original examples and/or notes:
// (c) ISO/IEC JTC1 SC22 WG21 N3242, April 12, 2011
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf
// > 11 Member access control 11.2 Accessibility of base classes and base class members
//
// 3 compile and output mechanism:
// (c) Dr. OGAWA Kiyoshi, kaizen at gifu-u.ac.jp,
//
// 4 compile errors and/or warnings:
// 4.1(c) Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
// Target: x86_64-apple-darwin13.2.0,  Thread model: posix
// Command/Options: c++ -std=c++11 -stdlib=libc++ -Wall cpp2011-11-2.cpp 
// (c) LLVM 2003-2009 University of Illinois at Urbana-Champaign.

// 4.2. g++-4.9 (GCC) 4.9.0 20131229 (experimental)
// Copyright (C) 2013 Free Software Foundation, Inc.
// This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// http://gcc.gnu.org/onlinedocs/gcc/Standards.html
// Command/Options: g++-4.9  -std=c++11  -Wall cpp2011-11-2.cpp 
// g++-4.9: error: unrecognized command line option '-stdlib=libc++'
// Configuration:brew install gcc49
//
// 4.3. Visual Studio Express 2013, 
// (c) Microsoft http://www.visualstudio.com/
// SPEC:
// Windows 7, .NET Framework
// (c) VMware, Inc.
// VMWare fusion 6
//
// 5. Hardware:  MacBook Pro, 
//(c) Intel http://ark.intel.com/products/37006/
//Core 2 Duo 2.53GHz, 8GB, 1067MHz DDR3
//
// 6. Special Thanks: Upper organizatios and 
// ITSCJ/IPSJ http://www.itscj.ipsj.or.jp/itscj_english/index.html
// Renesas Electronics Corporation.http://www.renesas.com/
// NPO SESSAME project, http://www.sessame.jp/workinggroup/WorkingGroup3/
// Toyo Corporation, http://www.toyo.co.jp/English/
// Japan Standard Association, http://bit.ly/1lzykg1
// NPO TOPPERS project, https://www.toppers.jp/asp-d-download.html
// Daido Universcity, http://www.daido-it.ac.jp/gakubugakka/computer/index.html
// WITZ Co.Ltd., http://www.witz-inc.co.jp/products/solution/solution.html
// SevenWise.co., http://www.7ws.co.jp/index.html
// TOYOTA Motor Corporation, http://toyota.jp/
// IT planning Inc., http://www.itpl.co.jp/en/index.html
// DENSO Corporation, http://www.globaldenso.com/en/
// Aisin Seiki co. Ltd., http://www.aisin.com/
// Spancion Inc., http://www.spansion.com/
// Yazaki Corporation, http://www.yazaki-group.com/global/
// Pananosic Corporation, http://www.panasonic.net/
// SWEST: Summer Workshop on Embedded System Technologies , http://swest.toppers.jp
// CEST: Consortium for Embedded System Technology, http://www.ertl.jp/CEST/
// JUSE: Union of Japanese Scientists and Engineers, http://www.juse.or.jp/e/
// OSC:Open Source Conference, http://www.ospn.jp/

#include <iostream>
//#include <cstdlib>
//#include <string.h>
//#include <cstring>
//#include <type_traits>
//#include <cassert>
//#include <algorithm>
//#include <cmath>
//#include <complex>
//#include <cstddef>
//#include <new>
//#include <vector>

using namespace std;

class B { /* ... */ };
class D1 : private B { /* ... */ };
class D2 : public B { /* ... */ };
class D3 : B { /* ... */ }; // B private by default
struct D4 : public B { /* ... */ };
struct D5 : private B { /* ... */ };
struct D6 : B { /* ... */ }; // B public by default
class D7 : protected B { /* ... */ };
struct D8 : protected B { /* ... */ };
//
class B1 {
public:
int mi; // non-static member
static int si; // static member
};
class D : private B1 {
};
class DD : public D {
void f();
};
void DD::f() {
//error: mi = 3; // error: mi is private in D
//error: si = 3; // error: si is private in D
::B1 b;
b.mi = 3; // OK ( b.mi is different from this->mi)
b.si = 3; // OK ( b.si is different from this->si)
::B1::si = 3; // OK
//error: ::B1* bp1 = this; // error: B is a private base class
::B1* bp2 = (::B1*)this; // OK with cast
bp2->mi = 3; // OK: access through a pointer to B.
}
//
class B2 {
public:
int m;
};
class S: private B2 {
friend class N;
};
class N: private S {
void f() {
B2* p = this; // OK because class S satisfies the fourth condition
// above: B is a base class of N accessible in f() because
// B is an accessible base class of S and S is an accessible
// base class of N.
}
};
//
class B3;
class A {
private:
int i;
friend void f(B3*);
};
class B3 : public A { };
void f(B3* p) {
p->i = 1; // OK: B* can be implicitly converted to A*,
// and f has access to i in A
}

int main() {

	cout << "11 Member access control 11.2 Accessibility of base classes and base class members" << std::endl;
	return 0;
}
// 1 link error
//1.1 llvm: c++ -std=c++11 -stdlib=libc++  -Wall cpp2011-11-2.cpp 
c++ -std=c++11 -stdlib=libc++  -Wall cpp2011-11-2.cpp 
cpp2011-11-2.cpp:115:5: warning: unused variable 'p' [-Wunused-variable]
B2* p = this; // OK because class S satisfies the fourth condition
    ^
>1 warning generated.
Undefined symbols for architecture x86_64:
  "B1::si", referenced from:
      DD::f() in cpp2011-11-2-b8f023.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
//1.2 gcc:g++-4.9 -std=c++11 -Wall cpp2011-11-2.cpp 
cpp2011-11-2.cpp: In member function 'void N::f()':
cpp2011-11-2.cpp:115:5: warning: unused variable 'p' [-Wunused-variable]
 B2* p = this; // OK because class S satisfies the fourth condition
     ^
Undefined symbols for architecture x86_64:
  "B1::si", referenced from:
      DD::f()     in ccYYg5ma.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status