//Guidelines for the use of the C++14 language in critical and safety-related systems
const char* msg="Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.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: A7-2-4.cpp 271715 2017-03-23 10:13:51Z piotr.tanski $
#include <cstdint>
enum class Enum1 : std::uint32_t
{
  One,
  Two = 2, // Non-compliant
  Three
};
enum class Enum2 : std::uint32_t // Compliant (none)
{
  One,
  Two,
  Three
};
enum class Enum3 : std::uint32_t // Compliant (the first)
{
  One = 1,
  Two,
  Three
};
enum class Enum4 : std::uint32_t // Compliant (all)
{
  One = 1,
  Two = 2,
  Three = 3
};
///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.
}

$ ../cpa.sh a7-2-4
$ clang++ a7-2-4.cpp -I./ -std=c++14 -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp
$ clang++ a7-2-4.cpp  -I./ -std=c++17 -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp
$ clang++ a7-2-4.cpp  -I./ -std=c++2a -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp

$ g++-8 a7-2-4.cpp  -I./ -std=c++14  -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp
$ g++-8 a7-2-4.cpp  -I./ -std=c++17  -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp
$ g++-8 a7-2-4.cpp  -I./ -std=c++2a  -Wall
Rule A7-2-4 (required, implementation, automated)In an enumeration, either (1) none, (2) the first or (3) all enumerators shall be initialized.(67)A7-2-4.cpp