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