#include"smart_enum.hpp"#include<iostream>voidfunction_1();voidfunction_2();voidfunction_3();// define "enum class" (use "SMART_ENUM" to define "enum") ...SMART_ENUM_CLASS(// ... in namespace "examples" ...    examples,// ... with name "options" having "char" type ("... enum class options : char ...") ...    (options,char),    (// ... with member "run_1" having data "runs 'function_1'" and pointer to "function_1" ...        (run_1, ("runs 'function_1'", &function_1)),// ... with member "run_2" having data "runs 'function_2'" and pointer to "function_2"  ...        (run_2, ("runs 'function_2'", &function_2)),// ... with member "run_1" having data "runs 'function_3'" and pointer to "function_3"  ...        (run_3, ("runs 'function_3'", &function_3))    ))voidfunction_1(){    std::cout <<"In 'function_1'" << std::endl;}voidfunction_2(){    std::cout <<"In 'function_2'" << std::endl;}voidfunction_3(){    std::cout <<"In 'function_3'" << std::endl;}intmain(int argc,char **argv){usingnamespaceexamples;usingnamespacesmart_enum;if(argc ==1)    {        std::cout            <<"Available options:"            <<"(using '" << full_name<options>() <<"' enum having" << count<options>() <<" values)"            << std::endl << std::endl;// for each option ...for(auto option : range<options>())        {// ... get its data and ...auto option_data =data(option);            std::cout// ... print option name ...                <<to_string(option) <<" ==>"// ... and its description                << std::get<0>(option_data)                << std::endl;        }return0;    }for(auto i =1; i < argc; ++i)    {auto arg = argv[i];try        {// find option based on its name ...auto option = from_string<options>(arg);// ... and get its dataauto option_data =data(option);            std::get<1>(option_data)();        }catch(const std::invalid_argument &)        {            std::cout <<"Invalid option" << arg << std::endl;        }    }return0;}

Available options: (using 'examples::options' enum having 3 values)run_1 ==> runs 'function_1'run_2 ==> runs 'function_2'run_3 ==> runs 'function_3'

In 'function_1'Invalid option xxxIn 'function_3'