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2014/06/17

C++N3242, 2011(147) 14.2 Names of template specializations

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// 1 filename:cpp2011-14-2.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
// >14 Templates 14.2 Names of template 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 cpp2011-14-2.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 cpp2011-14-2.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 <iostream>
//#include <cstdlib>
//#include <string.h>
//#include <cstring>
//#include <type_traits>
//#include <cassert>
//#include <algorithm>
//#include <cmath>
//#include <complex>
//#include <ccomplex>
//#include <cstddef>
//#include <new>
//#include <vector>
//#include <valarray>

using namespace std;

template<int i> class X { /* ... */ };
//error: X< 1>2 > x1; // syntax error
X<(1>2)> x2; // OK
template<class T> class Y { /* ... */ };
Y<X<1>> x3; // OK, same as Y<X<1> > x3;
//error: Y<X<6>>1>> x4; // syntax error
Y<X<(6>>1)>> x5; // OK
//
struct X1 {
template<std::size_t> X1* alloc();
template<std::size_t> static X1* adjust();
};
template<class T> void f(T* p) {
//error: T* p1 = p->alloc<200>(); // ill-formed: < means less than
T* p2 = p->template alloc<200>(); // OK: < starts template argument list
//error: T::adjust<100>(); // ill-formed: < means less than
T::template adjust<100>(); // OK: < starts template argument list
}
//
template <class T> struct A {
void f(int);
template <class U> void f(U);
};
template <class T> void f(T t) {
A<T> a;
a.template f<>(t); // OK: calls template
a.template f(t); // error: not a template-id
}
template <class T> struct B {
template <class T2> struct C { };
};
// OK: T::template C names a class template:
template <class T, template <class X2> class TT = T::template C> struct D { };
D<b<int>> db;
//

int main() {
cout << "14 Templates 14.2 Names of template specializations" << std::endl;
return 0;
}
// 1 error
// 1.1 llvm:  c++ -std=c++11 -stdlib=libc++  -Wall cpp2011-14-2.cpp 
cpp2011-14-2.cpp:107:3: error: use of undeclared identifier 'b'; did you mean 'std::uniform_int_distribution<long>::b'?
D<b<int>> db;
  ^
  std::uniform_int_distribution<long>::b
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/algorithm:2936:17: note: 
      'std::uniform_int_distribution<long>::b' declared here
    result_type b() const {return __p_.b();}
                ^
cpp2011-14-2.cpp:107:3: error: call to non-static member function without an object argument
D<b<int>> db;
  ^
cpp2011-14-2.cpp:107:8: error: expected '(' for function-style cast or type construction
D<b<int>> db;
    ~~~^
>3 errors generated.
// 1.2 gcc:g++-4.9 -std=c++11 -Wall cpp2011-14-2.cpp 
cpp2011-14-2.cpp:107:3: error: 'b' was not declared in this scope
 D<b<int>> db;
   ^
cpp2011-14-2.cpp:107:8: error: template argument 1 is invalid
 D<b<int>> db;
        ^
cpp2011-14-2.cpp:107:8: error: template argument 2 is invalid
cpp2011-14-2.cpp:107:13: error: invalid type in declaration before ';' token
 D<b<int>> db;
             ^


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