// 1 filename:cpp2011-13-4.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 13.4 Address of overloaded function // (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 cpp2011-13-4.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 cpp2011-13-4.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 //#include //#include //#include //#include //#include //#include //#include //#include //#include //#include //#include //#include using namespace std; int f(double); int f(int); int (*pfd)(double) = &f; // selects f(double) int (*pfi)(int) = &f; // selects f(int) //error: int (*pfe)(...) = &f; // error: type mismatch int (&rfi)(int) = f; // selects f(int) int (&rfd)(double) = f; // selects f(double) void g() { (int (*)(int))&f; // cast expression as selector } // struct X { int f(int); static int f(long); }; int (X::*p1)(int) = &X::f; // OK //error: int (*p2)(int) = &X::f; // error: mismatch int (*p3)(long) = &X::f; // OK //error: int (X::*p4)(long) = &X::f; // error: mismatch //error: int (X::*p5)(int) = &(X::f); // error: wrong syntax for // pointer to member int (*p6)(long) = &(X::f); // OK // struct D {}; struct B : public D {}; D* f(); //error: B* (*p7)() = &f; // error: address of overloaded function 'f' does not match required type 'B *()' void g(D*); //error: void (*p8)(B*) = &g; // error: address of overloaded function 'g' does not match required type 'void (B *)' int main() { cout << "13 Overloading 13.4 Address of overloaded function" << std::endl; return 0; } // 1 link error // 1.1 llvm: c++ -std=c++11 -stdlib=libc++ -Wall cpp2011-13-4.cpp cpp2011-13-4.cpp:81:1: warning: expression result unused [-Wunused-value] (int (*)(int))&f; // cast expression as selector ^ ~~ 1 warning generated. Undefined symbols for architecture x86_64: "f(double)", referenced from: _pfd in cpp2011-13-4-9592c5.o _rfd in cpp2011-13-4-9592c5.o "f(int)", referenced from: _pfi in cpp2011-13-4-9592c5.o _rfi in cpp2011-13-4-9592c5.o "X::f(int)", referenced from: _p1 in cpp2011-13-4-9592c5.o "X::f(long)", referenced from: _p3 in cpp2011-13-4-9592c5.o _p6 in cpp2011-13-4-9592c5.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)