//Guidelines for the use of the C++14 language in critical and safety-related systems
const char* msg="Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.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

using namespace std;/// @line add using

///start AUTOSAR: From here to the "///end AUTOSAR" is from AUTOSAR without code having /// comment in line.
//% $Id: A7-1-1.cpp 271687 2017-03-23 08:57:35Z piotr.tanski $
#include <cstdint>
#include <limits>
void fn()
{
  const std::int16_t x1 = 5; // Compliant
  constexpr std::int16_t x2 = 5; // Compliant
  std::int16_t x3 =
    5; // Non-compliant - x3 is not modified but not declared as
// constant (const or constexpr)
  cout <<"x1="<<x1<<" x2="<<x2<<" x3="<<x3<<endl;/// @ line for output
}
///end AUTOSAR
int start() { /// @{} for start
  fn();
  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.
}

$ ../cpa.sh a7-1-1
$ clang++ a7-1-1.cpp -I./ -std=c++14 -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp
$ clang++ a7-1-1.cpp  -I./ -std=c++17 -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp
$ clang++ a7-1-1.cpp  -I./ -std=c++2a -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp

$ g++-8 a7-1-1.cpp  -I./ -std=c++14  -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp
$ g++-8 a7-1-1.cpp  -I./ -std=c++17  -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp
$ g++-8 a7-1-1.cpp  -I./ -std=c++2a  -Wall
x1=5 x2=5 x3=5
Rule A7-1-1 (required, implementation, automated)Constexpr or const specifiers shall be used for immutable data declaration.(56)A7-1-1.cpp