// 1 filename:cpp2011-13-3-3-2.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 // >13 Overloading 13.3 Overload resolution 13.3.3 Best viable function 13.3.3.2 Ranking implicit conversion sequences // (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 cpp2011-13-3-3-2.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 cpp2011-13-3-3-2.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 //#include //#include //#include //#include //#include //#include //#include #include //#include //#include //#include //#include using namespace std; int f(const int *); int f(int *); int i1; int jj= f(&i1); // calls f(int*) // int i; int f1(); int&& f2(); int g(const int&); int g(const int&&); int j = g(i); // calls g(const int&) int k = g(f1()); // calls g(const int&&) int l = g(f2()); // calls g(const int&&) struct A { A& operator<<(int); void p() &; void p() &&; }; A& operator<<(A&&, char); A() << 1; // calls A::operator<<(int) A() << 'c'; // calls operator<<(A&&, char) A a; a << 1; // calls A::operator<<(int) a << 'c'; // calls A::operator<<(int) A().p(); // calls A::p()&& a.p(); // calls A::p()& // int f(const int &); int f(int &); int g(const int &); int g(int); int i2; int jj2 = f(i2); // calls f(int &) //error: int k2 = g(i2); // ambiguous struct X { void f() const; void f(); }; void g(const X& a, X b) { a.f(); // calls X::f() const b.f(); // calls X::f() } // struct A3 { operator short(); } a3; int f3(int); int f3(float); int i3 = f3(a3); // calls f(int), because short ! int is // better than short ! float. // struct A4 {}; struct B4 : public A4 {}; struct C4 : public B4 {}; C4 *pc; int f(A4 *); int f(B4 *); int i4 = f(pc); // calls f(B4*) // int main() { cout << "13 Overloading 13.3 Overload resolution 13.3.3 Best viable function 13.3.3.2 Ranking implicit conversion sequences" << std::endl; return 0; } // 1 error // 1.1 llvm:c++ -std=c++11 -stdlib=libc++ -Wall cpp2011-13-3-3-2.cpp cpp2011-13-3-3-2.cpp:92:3: error: expected unqualified-id A() << 1; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:93:3: error: expected unqualified-id A() << 'c'; // calls operator<<(A&&, char) ^ cpp2011-13-3-3-2.cpp:95:1: error: unknown type name 'a' a << 1; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:95:3: error: expected unqualified-id a << 1; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:96:1: error: unknown type name 'a' a << 'c'; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:96:3: error: expected unqualified-id a << 'c'; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:97:3: error: expected unqualified-id A().p(); // calls A::p()&& ^ cpp2011-13-3-3-2.cpp:98:1: error: unknown type name 'a' a.p(); // calls A::p()& ^ cpp2011-13-3-3-2.cpp:98:2: error: cannot use dot operator on a type a.p(); // calls A::p()& ^ >9 errors generated. //1.2 gcc: g++-4.9 -std=c++11 -Wall cpp2011-13-3-3-2.cpp cpp2011-13-3-3-2.cpp:92:3: error: expected unqualified-id before ')' token A() << 1; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:93:3: error: expected unqualified-id before ')' token A() << 'c'; // calls operator<<(A&&, char) ^ cpp2011-13-3-3-2.cpp:95:1: error: 'a' does not name a type a << 1; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:96:1: error: 'a' does not name a type a << 'c'; // calls A::operator<<(int) ^ cpp2011-13-3-3-2.cpp:97:3: error: expected unqualified-id before ')' token A().p(); // calls A::p()&& ^ cpp2011-13-3-3-2.cpp:98:1: error: 'a' does not name a type a.p(); // calls A::p()& ^