C99 features that don't work in C++

c99-cxx.c

/**
 * C99 features that don't work in C++
 *
 * Written in 2011 by David Coles <coles.david@gmail.com>
 *
 * To the extent possible under law, the author(s) have dedicated all copyright and related and
 * neighboring rights to this software to the public domain worldwide.
 * This software is distributed without any warranty.
 */

#include <stdio.h>

// Comment this out if you want to compile with a C++ compiler
#define USE_C99

struct person {
    const char* name;
    int age;
};

const struct person me = {"David", 42};

#ifdef USE_C99
// These C99 features are invalid in C++
const struct person me2 = {.name="David", .age=42};
const int abc[255] = { [42]=1, [43]=2 };
#endif


int main(int argc, char* argv[]) {
    printf("My name is %s and I'm %d\n", me.name, me.age);
#ifdef USE_C99
    printf("My name is %s and I'm %d\n", me2.name, me2.age);
    printf("Some good numbers are %d, %d and %d\n", abc[0], abc[42], abc[43]);
#endif
    return 0;
}