// 1 filename:cpp2011-14-5-5.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 // >14 Templates 14.5 Template declarations 14.5.5 Class template partial specializations // (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 cpp2011-14-5-5.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 cpp2011-14-5-5.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 //#include using namespace std; template class A0 { }; // #1 template class A0 { }; // #2 template class A0 { }; // #3 template class A0 { }; // #4 template class A0 { }; // #5 // //error: template class A { }; // error: class template partial specialization does not specialize any template argument; to define the primary template, remove the template argument list // template struct A { struct C { template struct B { }; }; }; // partial specialization of A::C::B template template struct A1::C1::B { }; A1::C1::B absip; // uses partial specialization // namespace N { template class A { }; // primary template } using N::A2; // refers to the primary template namespace N { template class A2 { }; // partial specialization } A2 a; // uses the partial specialization, which is found through // the using declaration which refers to the primary template // template struct A3 {}; // error: template struct A3 {}; // error: non-type template argument depends on a template parameter of the partial specialization template struct B3 {}; template struct B3 {}; // OK // template struct C3 {}; // error: template struct C3; // error: non-type template argument specializes a template parameter with dependent type 'T' template< int X, int (*array_ptr)[X] > class A4{}; int array[5]; //error: template< int X > class A4 { }; // error: reference to 'array' is ambiguous int main() { cout << "14 Templates 14.5 Template declarations 14.5.5 Class template partial specializations" << std::endl; return 0; } // 1 error // 1.1 llvm: c++ -std=c++11 -stdlib=libc++ -Wall cpp2011-14-5-5.cpp cpp2011-14-5-5.cpp:90:8: error: explicit specialization of non-template struct 'A1' struct A1::C1::B { }; ^ ~~~ cpp2011-14-5-5.cpp:90:15: error: no member named 'C1' in the global namespace struct A1::C1::B { }; ~~^ cpp2011-14-5-5.cpp:91:3: error: expected unqualified-id A1::C1::B absip; // uses partial specialization ^ cpp2011-14-5-5.cpp:96:10: error: no member named 'A2' in namespace 'N' using N::A2; // refers to the primary template ~~~^ cpp2011-14-5-5.cpp:98:25: error: explicit specialization of non-template class 'A2' template class A2 { }; // partial specialization ^ ~~~~~~~ cpp2011-14-5-5.cpp:100:1: error: no template named 'A2'; did you mean 'N::A2'? A2 a; // uses the partial specialization, which is found through ^~ N::A2 cpp2011-14-5-5.cpp:98:25: note: 'N::A2' declared here template class A2 { }; // partial specialization ^ cpp2011-14-5-5.cpp:100:1: error: too many template arguments for class template 'A2' A2 a; // uses the partial specialization, which is found through ^ ~~~~~ cpp2011-14-5-5.cpp:98:25: note: template is declared here template class A2 { }; // partial specialization ~~~~~~~~~~~~~~~~~ ^ >7 errors generated. //1.2 gcc: g++-4.9 -std=c++11 -Wall cpp2011-14-5-5.cpp cpp2011-14-5-5.cpp:90:8: error: 'A1' is not a class template struct A1::C1::B { }; ^ cpp2011-14-5-5.cpp:90:8: error: 'A1' has not been declared cpp2011-14-5-5.cpp:90:20: error: expected unqualified-id before '<' token struct A1::C1::B { }; ^ cpp2011-14-5-5.cpp:91:1: error: 'A1' does not name a type A1::C1::B absip; // uses partial specialization ^ cpp2011-14-5-5.cpp:96:10: error: 'N::A2' has not been declared using N::A2; // refers to the primary template ^ cpp2011-14-5-5.cpp:98:25: error: 'A2' is not a class template template class A2 { }; // partial specialization ^ cpp2011-14-5-5.cpp:100:1: error: 'A2' does not name a type A2 a; // uses the partial specialization, which is found through ^