source: tests/enum.cfa @ bab42de

//Testing enum declaration
enum Colours {
        Red,
        Yellow,
        Pink,
        Blue,
        Purple,
        Orange,
        Green
};

enum Colours c1;
Colours c2;

void f( void ) {
        enum Fruits {
                Apple,
                Banana,
                Pear,
                Mango
        } fruit = Mango;
        enum Fruits f1;
        Fruits f2;
}

// test constant-expressions

struct S {
    int i;
};
enum K { P = 3 + 4 };
enum Y { W = 9 + (3 && 4 || 7)};
int p[W];
enum { X = W + -3 + ~1 / 2 * (int)4 + sizeof(struct S) + _Alignof(struct S) || 3 && 5 + (3 ? 1 : 2 ) + __builtin_offsetof(struct S, i ) };
int x[X];
enum { B = 3 + 4 - 7 * 20 / 34 << 3 >> 4 > 8 < 9 <= 23 >= 42 == 12 != 13  & 4 ^ 2 | 8 + sizeof(struct S) + _Alignof(struct S) };
int y[B];
enum { J = +3 + -4 / ~20 * ! 0 };
int z[J] = { 1, 2, 3 };
int aa[41] @= { [3] : 3, [1] : 6 };

//Dummy main
int main(int argc, char const *argv[]) {
        printf( "done\n" );                             // non-empty .expect file
}