23 lines
462 B
Rust
23 lines
462 B
Rust
native mod rustrt {
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fn rust_dbg_call(cb: *u8,
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data: ctypes::uintptr_t) -> ctypes::uintptr_t;
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}
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crust fn cb(data: ctypes::uintptr_t) -> ctypes::uintptr_t {
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if data == 1u {
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data
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} else {
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fact(data - 1u) * data
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}
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}
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fn fact(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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let result = fact(10u);
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#debug("result = %?", result);
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assert result == 3628800u;
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} |