2 // ignore-wasm32-bare no libc to test ffi with
4 #![feature(rustc_private)]
9 use libc::{c_double, c_int};
11 fn to_c_int(v: &mut isize) -> &mut c_int {
13 mem::transmute_copy(&v)
17 fn lgamma(n: c_double, value: &mut isize) -> c_double {
19 return m::lgamma(n, to_c_int(value));
24 use libc::{c_double, c_int};
28 #[cfg(any(all(unix, not(target_os = "vxworks")), target_os = "cloudabi"))]
29 #[link_name="lgamma_r"]
30 pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
33 pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
34 #[cfg(target_os = "vxworks")]
36 pub fn lgamma(n: c_double, sign: &mut c_int) -> c_double;
42 let x: &mut isize = &mut y;
43 assert_eq!(lgamma(1.0 as c_double, x), 0.0 as c_double);