C++11: enum to string and integer

main.cpp

/* How to use enum class and to obtain its value as integer and string
 * without too much of code repition.
 *
 * Based on http://stackoverflow.com/a/238157/248823
 */

#include <iostream>


using namespace std;

#define SOME_ENUM(DO) \
    DO(JPEG) \
    DO(DCM) \
    DO(PNG)

#define MAKE_ENUM(VAR) VAR,
enum class IMAGE_TYPES
{
    SOME_ENUM(MAKE_ENUM)
};

#define MAKE_STRINGS(VAR) #VAR,
const char* const
IMAGE_TYPES_NAMES[] =
{
    SOME_ENUM(MAKE_STRINGS)
};

const char *
GET_IMAGE_NAME(IMAGE_TYPES type)
{
    return IMAGE_TYPES_NAMES[static_cast<int>(type)];
}

int
GET_IMAGE_VALUE(IMAGE_TYPES type)
{
    return static_cast<int>(type);
}



int main()
{

    IMAGE_TYPES type;

    type = IMAGE_TYPES::PNG;

    int     type_value {GET_IMAGE_VALUE(type)};
    string  type_name  {GET_IMAGE_NAME (type)};

    cout << type_value << ": " << type_name << endl;


    return 0;
}