2 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
3 // file at the top-level directory of this distribution and at
4 // http://rust-lang.org/COPYRIGHT.
6 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
7 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
8 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
9 // option. This file may not be copied, modified, or distributed
10 // except according to those terms.
15 use libc::{c_double, c_int};
17 fn to_c_int(v: &mut int) -> &mut c_int {
19 mem::transmute_copy(&v)
23 fn lgamma(n: c_double, value: &mut int) -> c_double {
25 return m::lgamma(n, to_c_int(value));
30 use libc::{c_double, c_int};
35 #[link_name="lgamma_r"]
36 pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
38 #[link_name="__lgamma_r"]
39 pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
45 let x: &mut int = &mut y;
46 assert_eq!(lgamma(1.0 as c_double, x), 0.0 as c_double);