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2018/04/24

C++N3242, 2011 (4) 2 Lexical conventions 2.4Trigraph sequences

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// 1 filename:cpp2011-2-5.cpp
// ver 0.1 June.10, 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
#define msg "2 Lexical conventions 2.4Trigraph sequences"
//
// 3 compile and output mechanism:
// (c) Ogawa Kiyoshi, kaizen @ wh.commufa.jp
//
// 4 compile errors and/or wornings:
// 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 cpp2011-2-5.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 cpp2011-2-5.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
// 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>
using namespace std;

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)


int main()

{

int a[1]={0};

int b=1;

bool c = arraycheck(a,b);

cout << "arraycheck(a,b)=" << c <<endl;

cout << msg << std::endl;

return EXIT_SUCCESS;

}

// 2. output -std=c++11

$ ./cppwa11.sh cpp2011-2-4

 usege ./cppwa11.sh prog option msg

$ clang++ cpp2011-2-4.cpp  -std=c++11 -Wall

cpp2011-2-4.cpp:60:1: warning: trigraph converted to '#' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

^

cpp2011-2-4.cpp:60:28: warning: trigraph converted to '[' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                           ^

cpp2011-2-4.cpp:60:32: warning: trigraph converted to ']' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                               ^

cpp2011-2-4.cpp:60:36: warning: trigraph converted to '|' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                                   ^

cpp2011-2-4.cpp:60:39: warning: trigraph converted to '|' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                                      ^

cpp2011-2-4.cpp:60:44: warning: trigraph converted to '[' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                                           ^

cpp2011-2-4.cpp:60:48: warning: trigraph converted to ']' character [-Wtrigraphs]

??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

                                               ^

7 warnings generated.

arraycheck(a,b)=0

2 Lexical conventions 2.4Trigraph sequences


$ g++-7 cpp2011-2-4.cpp  -std=c++11  -Wall

cpp2011-2-4.cpp:60:1:warning: trigraph ??= converted to # [-Wtrigraphs]

 ??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

  

cpp2011-2-4.cpp:60:26:warning: trigraph ??( converted to [ [-Wtrigraphs]

cpp2011-2-4.cpp:60:28:warning: trigraph ??) converted to ] [-Wtrigraphs]

cpp2011-2-4.cpp:60:30:warning: trigraph ??! converted to | [-Wtrigraphs]

cpp2011-2-4.cpp:60:31:warning: trigraph ??! converted to | [-Wtrigraphs]

cpp2011-2-4.cpp:60:34:warning: trigraph ??( converted to [ [-Wtrigraphs]

cpp2011-2-4.cpp:60:36:warning: trigraph ??) converted to ] [-Wtrigraphs]

arraycheck(a,b)=1

2 Lexical conventions 2.4Trigraph sequences


課題を明確にするため、まずTrigraph出ない版を作成。
うまく処理できるようにしたコードをTrigraph化。

trigraph処理とマクロ処理の2つの課題を同時に解決するのは無理。

#include <iostream>

using namespace std;


//??=define arraycheck(a,b) a??(b??) ??!??! b??(a??)

#define arraycheck(a,b) a[b] || b[a]


int main()

{

int a[1]={0};

int b=1;

bool c = arraycheck(a,b);

cout << "arraycheck(a,b)=" << c <<endl;

cout << msg << std::endl;

return EXIT_SUCCESS;

}

実行結果
```

 ./cppwa11.sh cpp2011-2-4a

 usege ./cppwa11.sh prog option msg

$ clang++ cpp2011-2-4a.cpp  -std=c++11 -Wall

arraycheck(a,b)=0

2 Lexical conventions 2.4Trigraph sequences


$ g++-7 cpp2011-2-4a.cpp  -std=c++11  -Wall

arraycheck(a,b)=1

2 Lexical conventions 2.4Trigraph sequences

```

<この稿は書きかけです。順次追記しています。>
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