sexp

Is this a sane representation for s-expressions?

struct O
{
union {
Cell *o;
char *a;
};
int type;
};

struct Cell
{
O car, cdr;
};

>>18
Only if it was divergent. And even if it was, it wouldn't require generating all possible programs. It could be cyclic, for example. It's clear that they didn't cover set theory in first grade before you dropped out.