27 lines
593 B
Rust
27 lines
593 B
Rust
extern mod rustrt {
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fn rust_dbg_call(cb: *u8,
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data: libc::uintptr_t) -> libc::uintptr_t;
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}
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extern fn cb(data: libc::uintptr_t) -> libc::uintptr_t {
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if data == 1u {
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data
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} else {
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count(data - 1u) + 1u
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}
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}
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fn count(n: uint) -> uint {
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#debug("n = %?", n);
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rustrt::rust_dbg_call(cb, n)
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}
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fn main() {
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// Make sure we're on a task with small Rust stacks (main currently
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// has a large stack)
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do task::spawn {
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let result = count(1000u);
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#debug("result = %?", result);
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assert result == 1000u;
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};
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} |