C++ version check

cplusplus_version.cpp

// create basic cplusplus main

#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main()
{
    std::cout <<  std::endl;
    std::cout <<  "C++ Version: " << std::endl;
    /*
    see this on SO <https://stackoverflow.com/questions/2324658/how-to-determine-the-version-of-the-c-standard-used-by-the-compiler>
    C++ pre-C++98: __cplusplus is 1.
    C++98: __cplusplus is 199711L.
    C++98 + TR1: This reads as C++98 and there is no way to check that I know of.
    C++11: __cplusplus is 201103L.
    C++14: __cplusplus is 201402L.
    C++17: __cplusplus is 201703L.
    C++20: __cplusplus is 202002L.
    C++23: __cplusplus is 202302L.
    */

    std::cout << __cplusplus << std::endl;

    cout << endl;
  
    // To limit by version
  
    #if __cplusplus >= 202302L
    // C++23 or later
    #else
    // Earlier C++ standard
    #endif
  
  
}