Autosar Guidelines C++14 example code compile list(23)A3-1-2 Header files, that are defined locally in the project

Guidelines for the use of the C++14 language in critical and
safety-related systems Sample code compile list(23)
https://www.autosar.org/fileadmin/user_upload/standards/adaptive/17-03/AUTOSAR_RS_CPP14Guidelines.pdf

目的(purpose)

AutosarのC++ GuidelineをOS, 制御のプログラムで利用するにあたって、(1)hosted, freestandingのどちらを基本にすべきか。(2)C++2014,C++2017, C++202aのどれを用いると良いか, (3)どの処理系を併用すると良いかを検討するため、-std=c++14, -std=c++17, -std=c++2aの3種類で、複数のコンパイラでコンパイルすることにより、誤(error)、警告(warning)、関数・変数連携(link)、出力(output)、にどのような影響があるかを確認する。

成果(outcome)

複数の処理系の特徴が明確になるとともに、各標準段階, hosted, freestandingの特徴と課題を明確にする。

A3-1-2.cpp

算譜(source code)

A3-1-2.cpp

//Guidelines for the use of the C++14 language in critical and safety-related systems
const char* msg="Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp";
//https://www.autosar.org/fileadmin/user_upload/standards/adaptive/17-03/AUTOSAR_RS_CPP14Guidelines.pdf
// There is no description about Autosar declear hosted or freestanding.
// If the Autosar intended both depending on the cases, autosar.h can choose one.
// Compile with -DHOSTED work as  hosted environment, -DFREESTANDING work as freestanding.

#include "autosar.h"/// @line add header file https://qiita.com/kaizen_nagoya/items/4bde8f21ab059b96cf2a
#include <cstdint>

using namespace std;/// @line add using

///start AUTOSAR: From here to the "///end AUTOSAR" is from AUTOSAR without code having /// comment in line.

//% $Id: A3-1-2.cpp 266557 2017-02-07 13:08:19Z piotr.tanski $
#include <h3.h> // Compliant
#include <h1.hpp> // Compliant
#include <h2.hxx> // Compliant
#include <h4.cpp> // Non-compliant
#include <h5.c> // Non-compliant
#include <h6.hdr> // Non-compliant
#include <h7.inc> // Non-compliant
///end AUTOSAR
int start() { /// @{} for start
  cout<< msg << endl;
  ShutdownOS()  EXIT_SUCCESS;
/// Autosar OS 3.1.1, 2009: 7.1.2.2 Undefined Behaviour in OSEK OS
/// OS425 If ShutdownOS is called and ShutdownHook() returns then the operating system shall disable all interrupts and enter an endless loop.
}

h3.h

#ifndef H3_H
#define H3_H
#endif

h1.hpp

#ifndef H1_HPP
#define H1_HPP
#endif

h2.hxx

#ifndef H2_HXX
#define H2_HXX
#endif

h4.cpp

#ifndef H4_CPP
#define H4_CPP
#endif

h5.c

#ifndef H5_C
#define H5_C
#endif

h6.hdr

#ifndef H6_HDR
#define H6_HDR
#endif

h7.icn

#ifndef H7_INC
#define H7_INC
#endif

編纂・実行結果(compile and go)

cpa.sh

$ clang++ a3-1-2.cpp -std=c++14 -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp
$ clang++ a3-1-2.cpp -std=c++17 -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp
$ clang++ a3-1-2.cpp -std=c++2a -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp
$ g++-8 a3-1-2.cpp -I./ -std=c++14  -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp
$ g++-8 a3-1-2.cpp  -I./ -std=c++17  -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp
$ g++-8 a3-1-2.cpp  -I./ -std=c++2a  -Wall
$ ./a.out
Rule A3-1-2(required,implementation,automated)Header files, that are defined locally in the project, shall have a file name extension of one of:'.h','.hpp'or'.hxx'.(23)A3-1-2.cpp

検討事項(agenda)

1. 自律(freestanding)環境. 接待(hosted)環境

C++N4606 1.4 Implementation compliance p.4

2. 対応OSの水準、対応通信規約、応用機能による分類

freestanding用の関数、ライブラリ等

3. C++2014, C++2017, C++202aの比較項目

本件なし

4. clang++, g++の比較検討項目

本件なし

5 shell実行時のエラー

コマンドを直接叩くとエラーがない。shell scriptだと下記のエラー

pa.sh

$ ../cpa.sh a3-1-2
$ clang++ a3-1-2.cpp -I./ -std=c++14 -Wall
a3-1-2.cpp:16:10: error: 'h3.h' file not found with <angled> include; use
      "quotes" instead
#include <h3.h> // Compliant
         ^~~~~~
         "h3.h"
a3-1-2.cpp:17:10: error: 'h1.hpp' file not found with <angled> include; use
      "quotes" instead
#include <h1.hpp> // Compliant
         ^~~~~~~~
         "h1.hpp"
a3-1-2.cpp:18:10: error: 'h2.hxx' file not found with <angled> include; use
      "quotes" instead
#include <h2.hxx> // Compliant
         ^~~~~~~~
         "h2.hxx"
a3-1-2.cpp:19:10: error: 'h4.cpp' file not found with <angled> include; use
      "quotes" instead
#include <h4.cpp> // Non-compliant
         ^~~~~~~~
         "h4.cpp"
a3-1-2.cpp:20:10: error: 'h5.c' file not found with <angled> include; use
      "quotes" instead
#include <h5.c> // Non-compliant
         ^~~~~~
         "h5.c"
a3-1-2.cpp:21:10: error: 'h6.hdr' file not found with <angled> include; use
      "quotes" instead
#include <h6.hdr> // Non-compliant
         ^~~~~~~~
         "h6.hdr"
a3-1-2.cpp:22:10: error: 'h7.inc' file not found with <angled> include; use
      "quotes" instead
#include <h7.inc> // Non-compliant
         ^~~~~~~~
         "h7.inc"
7 errors generated.
$ clang++ a3-1-2.cpp  -I./ -std=c++17 -Wall
a3-1-2.cpp:16:10: error: 'h3.h' file not found with <angled> include; use
      "quotes" instead
#include <h3.h> // Compliant
         ^~~~~~
         "h3.h"
a3-1-2.cpp:17:10: error: 'h1.hpp' file not found with <angled> include; use
      "quotes" instead
#include <h1.hpp> // Compliant
         ^~~~~~~~
         "h1.hpp"
a3-1-2.cpp:18:10: error: 'h2.hxx' file not found with <angled> include; use
      "quotes" instead
#include <h2.hxx> // Compliant
         ^~~~~~~~
         "h2.hxx"
a3-1-2.cpp:19:10: error: 'h4.cpp' file not found with <angled> include; use
      "quotes" instead
#include <h4.cpp> // Non-compliant
         ^~~~~~~~
         "h4.cpp"
a3-1-2.cpp:20:10: error: 'h5.c' file not found with <angled> include; use
      "quotes" instead
#include <h5.c> // Non-compliant
         ^~~~~~
         "h5.c"
a3-1-2.cpp:21:10: error: 'h6.hdr' file not found with <angled> include; use
      "quotes" instead
#include <h6.hdr> // Non-compliant
         ^~~~~~~~
         "h6.hdr"
a3-1-2.cpp:22:10: error: 'h7.inc' file not found with <angled> include; use
      "quotes" instead
#include <h7.inc> // Non-compliant
         ^~~~~~~~
         "h7.inc"
7 errors generated.
$ clang++ a3-1-2.cpp  -I./ -std=c++2a -Wall
a3-1-2.cpp:16:10: error: 'h3.h' file not found with <angled> include; use
      "quotes" instead
#include <h3.h> // Compliant
         ^~~~~~
         "h3.h"
a3-1-2.cpp:17:10: error: 'h1.hpp' file not found with <angled> include; use
      "quotes" instead
#include <h1.hpp> // Compliant
         ^~~~~~~~
         "h1.hpp"
a3-1-2.cpp:18:10: error: 'h2.hxx' file not found with <angled> include; use
      "quotes" instead
#include <h2.hxx> // Compliant
         ^~~~~~~~
         "h2.hxx"
a3-1-2.cpp:19:10: error: 'h4.cpp' file not found with <angled> include; use
      "quotes" instead
#include <h4.cpp> // Non-compliant
         ^~~~~~~~
         "h4.cpp"
a3-1-2.cpp:20:10: error: 'h5.c' file not found with <angled> include; use
      "quotes" instead
#include <h5.c> // Non-compliant
         ^~~~~~
         "h5.c"
a3-1-2.cpp:21:10: error: 'h6.hdr' file not found with <angled> include; use
      "quotes" instead
#include <h6.hdr> // Non-compliant
         ^~~~~~~~
         "h6.hdr"
a3-1-2.cpp:22:10: error: 'h7.inc' file not found with <angled> include; use
      "quotes" instead
#include <h7.inc> // Non-compliant
         ^~~~~~~~
         "h7.inc"
7 errors generated.

$ g++-8 a3-1-2.cpp  -I./ -std=c++14  -Wall
a3-1-2.cpp:16:10: fatal error: h3.h: No such file or directory
 #include <h3.h> // Compliant
          ^~~~~~
compilation terminated.
$ g++-8 a3-1-2.cpp  -I./ -std=c++17  -Wall
a3-1-2.cpp:16:10: fatal error: h3.h: No such file or directory
 #include <h3.h> // Compliant
          ^~~~~~
compilation terminated.
$ g++-8 a3-1-2.cpp  -I./ -std=c++2a  -Wall
a3-1-2.cpp:16:10: fatal error: h3.h: No such file or directory
 #include <h3.h> // Compliant
          ^~~~~~
compilation terminated.

参考文献(reference)

C++N4741 2018

Working Draft, Standard for Programming Language C++
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/n4741.pdf

C++N4741, 2018 Standard Working Draft on ISO/IEC 14882 sample code compile list
https://qiita.com/kaizen_nagoya/items/3294c014044550896010

N4606 2016

Working Draft, Standard for Programming Language C++
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/n4606.pdf

C++N4606, 2016符号断片編纂一覧(example code compile list)
Working Draft 2016, ISO/IEC 14882(1)
https://qiita.com/kaizen_nagoya/items/df5d62c35bd6ed1c3d43/

文書履歴

ver 0.10 初稿 20180608