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/* heh, this technically speaking works, but I guess the compiler can't collapse
* frames so the bifurcating nature of fibonacci just gets mapped to a linear
* sequence of calls, taking up way more stack space than a typical, returning,
* function */
fib(int n, (int) res)
{
fwd_copy(n) => int n1, int n2;
if n1 < 2 {
res(1);
} else {
fib(n2 - 1) => int f1;
fib(n2 - 2) => int f2;
res(f1 + f2);
}
}
/* 'extern' println */
fwd_println(auto n);
fwd_copy(auto n, (auto, auto) n1);
main()
{
fib(6) => int n;
fwd_println(n);
}
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