// 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 #include //#include //#include //#include //#include //#include #include #include //#include //#include //#include #include 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)