cbc/test/union-semcheck.cb

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union a {
};
union b {
union a x;
};
union c {
union a x;
union b y;
};
union d {
union c x;
union c y;
};
// direct recursion with pointer
union e {
union e *ptr;
};
// indirect recursion with pointer
union f {
union g x;
};
union g {
union f * ptr;
};
int main(int argc, char **argv) { return 0; }