29 lines
669 B
Rust
29 lines
669 B
Rust
use libc::{c_double, c_int};
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use f64::*;
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fn to_c_int(v: &mut int) -> &mut c_int unsafe {
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cast::reinterpret_cast(&v)
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}
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fn lgamma(n: c_double, value: &mut int) -> c_double {
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return m::lgamma(n, to_c_int(value));
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}
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#[link_name = "m"]
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#[abi = "cdecl"]
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extern mod m {
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#[legacy_exports];
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#[cfg(unix)]
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#[link_name="lgamma_r"] fn lgamma(n: c_double, sign: &mut c_int)
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-> c_double;
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#[cfg(windows)]
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#[link_name="__lgamma_r"] fn lgamma(n: c_double,
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sign: &mut c_int) -> c_double;
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}
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fn main() {
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let mut y: int = 5;
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let x: &mut int = &mut y;
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assert (lgamma(1.0 as c_double, x) == 0.0 as c_double);
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} |