#include <iostream>
 
#define COUNT_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...)    N
#define COUNT(...)   COUNT_N(__VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
// Warning: COUNT() return 1 (as COUNT(A)) :-/
 
#define IDENTITY(N) N
#define APPLY(macro, ...) IDENTITY(macro(__VA_ARGS__))
 
#define STRINGIFY_1(a) #a
#define STRINGIFY_2(a, b) #a, #b
#define STRINGIFY_3(a, b, c) #a, #b, #c
#define STRINGIFY_4(a, b, c, d) #a, #b, #c, #d
#define STRINGIFY_5(a, b, c, d, e) #a, #b, #c, #d, #e
#define STRINGIFY_6(a, b, c, d, e, f) #a, #b, #c, #d, #e, #f
#define STRINGIFY_7(a, b, c, d, e, f, g) #a, #b, #c, #d, #e, #f, #g
#define STRINGIFY_8(a, b, c, d, e, f, g, h) #a, #b, #c, #d, #e, #f, #g, #h
 
#define DISPATCH(N) STRINGIFY_ ## N
 
#define STRINGIFY(...) IDENTITY(APPLY(DISPATCH, COUNT(__VA_ARGS__)))(__VA_ARGS__)
 
 
int main() {
    const char* words[] = { STRINGIFY(42, 5, toto, hello) };
 
    for (const auto s : words) {
        std::cout << s << std::endl;   
    }
}
 

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