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2014/06/16

C++N3242, 2011(129) 13.1 Overloadable declarations

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// 1 filename:cpp2011-13-1.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
// >13 Overloading 13.1 Overloadable declarations
//
// 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 cpp2011-13-1.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 cpp2011-13-1.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>
#include <valarray>

using namespace std;

class X {
static void f();
//error: void f(); // ill-formed
//error: void f() const; // ill-formed
//error: void f() const volatile; // ill-formed
void g();
void g() const; // OK: no static g
void g() const volatile; // OK: no static g
};
//

class Y {
void h() &;
void h() const &; // OK
void h() &&; // OK, all declarations have a ref-qualifier
void i() &;
//error: void i() const; // ill-formed, prior declaration of i
// has a ref-qualifier
};
//
typedef int Int;
void f2(int i);
void f2(Int i); // OK: redeclaration of f(int)
void f2(int i) { /* ... */ }
//error: void f(Int i) { /* ... */ } // error: redefinition of f(int)
//
enum E { a };
void f3(int i) { /* ... */ }
void f3(E i) { /* ... */ }
//
int f(char*);
int f(char[]); // same as f(char*);
int f(char[7]); // same as f(char*);
int f(char[9]); // same as f(char*);
int g(char(*)[10]);
int g(char[5][10]); // same as g(char(*)[10]);
int g(char[7][10]); // same as g(char(*)[10]);
int g(char(*)[20]); // different from g(char(*)[10]);

//
void h(int());
void h(int (*)()); // redeclaration of h(int())
void h(int x()) { } // definition of h(int())
//error: void h(int (*x)()) { } // ill-formed: redefinition of h(int())
//
typedef const int cInt;
int f4 (int);
int f4 (const int); // redeclaration of f(int)
int f4 (int) { /* ... */ } // definition of f(int)
//error: int f4 (cInt) { /* ... */ } // error: redefinition of f(int)
//
void f5 (int i, int j);
void f5 (int i, int j = 99); // OK: redeclaration of f(int, int)
void f5 (int i = 88, int j); // OK: redeclaration of f(int, int)
void f5 (); // OK: overloaded declaration of f
void prog () {
f5 (1, 2); // OK: call f(int, int)
f5 (1); // OK: call f(int, int)
//error: f (); // Error: f(int, int) or f()?
}


int main() {
//
cout << "13 Overloading 13.1 Overloadable declarations" << std::endl;
return 0;
}
// 1 link error
//c++ c++ -std=c++11 -stdlib=libc++  -Wall cpp2011-13-1.cpp 
cpp2011-13-1.cpp:123:26: warning: control reaches end of non-void function [-Wreturn-type]
int f4 (int) { /* ... */ } // definition of f(int)
                         ^
1 warning generated.
Undefined symbols for architecture x86_64:
  "f5(int, int)", referenced from:
      prog() in cpp2011-13-1-dd0d28.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

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