C++11 Fun with initializer lists, arrays, and enumerations

Question

Background

C++11 initializer lists can be used to initialize vectors and arrays with argument passing to constructors.

I have a piece of code below

Answer 1

The MACRO solution.

#include 
#include 

#define COLORS(V,E) \
    V(RED) \
    V(GREEN) \
    E(BLUE)

#define COMMA(V) \
    V,

#define NCOMMA(V) \
    V

#define SCOMMA(V) \
    #V,

#define SNCOMMA(E) \
    #E

enum Colors {
    COLORS(COMMA,NCOMMA)
};

const char * colors[] = {
    COLORS(SCOMMA,SNCOMMA)
};

#define INIT_LIST(V) \
    { V(COMMA,NCOMMA) }

int main(int argc, char  **argv) {
    for ( auto i : INIT_LIST(COLORS) ) {
        printf("%s\n", colors[i]);
    }
}