projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| abe05a73 XL |
1 | #![cfg(not(test))] |
| 2 | ||
| add651ee | 3 | use libc::{c_double, c_float, c_int}; |
| abe05a73 | 4 | |
| 60c5eb7d | 5 | extern "C" { |
| abe05a73 XL |
6 | pub fn acos(n: c_double) -> c_double; |
| 7 | pub fn asin(n: c_double) -> c_double; | |
| 8 | pub fn atan(n: c_double) -> c_double; | |
| 9 | pub fn atan2(a: c_double, b: c_double) -> c_double; | |
| 10 | pub fn cbrt(n: c_double) -> c_double; | |
| 11 | pub fn cbrtf(n: c_float) -> c_float; | |
| 12 | pub fn cosh(n: c_double) -> c_double; | |
| 13 | pub fn expm1(n: c_double) -> c_double; | |
| 14 | pub fn expm1f(n: c_float) -> c_float; | |
| 15 | pub fn fdim(a: c_double, b: c_double) -> c_double; | |
| 16 | pub fn fdimf(a: c_float, b: c_float) -> c_float; | |
| 17 | #[cfg_attr(target_env = "msvc", link_name = "_hypot")] | |
| 18 | pub fn hypot(x: c_double, y: c_double) -> c_double; | |
| 19 | #[cfg_attr(target_env = "msvc", link_name = "_hypotf")] | |
| 20 | pub fn hypotf(x: c_float, y: c_float) -> c_float; | |
| 21 | pub fn log1p(n: c_double) -> c_double; | |
| 22 | pub fn log1pf(n: c_float) -> c_float; | |
| 23 | pub fn sinh(n: c_double) -> c_double; | |
| 24 | pub fn tan(n: c_double) -> c_double; | |
| 25 | pub fn tanh(n: c_double) -> c_double; | |
| add651ee FG |
26 | pub fn tgamma(n: c_double) -> c_double; |
| 27 | pub fn tgammaf(n: c_float) -> c_float; | |
| 28 | pub fn lgamma_r(n: c_double, s: &mut c_int) -> c_double; | |
| 29 | pub fn lgammaf_r(n: c_float, s: &mut c_int) -> c_float; | |
| abe05a73 XL |
30 | } |
| 31 | ||
| 32 | pub use self::shims::*; | |
| 33 | ||
| dfeec247 | 34 | #[cfg(not(all(target_env = "msvc", target_arch = "x86")))] |
| abe05a73 XL |
35 | mod shims { |
| 36 | use libc::c_float; | |
| 37 | ||
| 60c5eb7d | 38 | extern "C" { |
| abe05a73 XL |
39 | pub fn acosf(n: c_float) -> c_float; |
| 40 | pub fn asinf(n: c_float) -> c_float; | |
| 41 | pub fn atan2f(a: c_float, b: c_float) -> c_float; | |
| 42 | pub fn atanf(n: c_float) -> c_float; | |
| 43 | pub fn coshf(n: c_float) -> c_float; | |
| 44 | pub fn sinhf(n: c_float) -> c_float; | |
| 45 | pub fn tanf(n: c_float) -> c_float; | |
| 46 | pub fn tanhf(n: c_float) -> c_float; | |
| 47 | } | |
| 48 | } | |
| 49 | ||
| dfeec247 | 50 | // On 32-bit x86 MSVC these functions aren't defined, so we just define shims |
| f2b60f7d | 51 | // which promote everything to f64, perform the calculation, and then demote |
| dfeec247 XL |
52 | // back to f32. While not precisely correct should be "correct enough" for now. |
| 53 | #[cfg(all(target_env = "msvc", target_arch = "x86"))] | |
| abe05a73 XL |
54 | mod shims { |
| 55 | use libc::c_float; | |
| 56 | ||
| 57 | #[inline] | |
| 58 | pub unsafe fn acosf(n: c_float) -> c_float { | |
| 59 | f64::acos(n as f64) as c_float | |
| 60 | } | |
| 61 | ||
| 62 | #[inline] | |
| 63 | pub unsafe fn asinf(n: c_float) -> c_float { | |
| 64 | f64::asin(n as f64) as c_float | |
| 65 | } | |
| 66 | ||
| 67 | #[inline] | |
| 68 | pub unsafe fn atan2f(n: c_float, b: c_float) -> c_float { | |
| 69 | f64::atan2(n as f64, b as f64) as c_float | |
| 70 | } | |
| 71 | ||
| 72 | #[inline] | |
| 73 | pub unsafe fn atanf(n: c_float) -> c_float { | |
| 74 | f64::atan(n as f64) as c_float | |
| 75 | } | |
| 76 | ||
| 77 | #[inline] | |
| 78 | pub unsafe fn coshf(n: c_float) -> c_float { | |
| 79 | f64::cosh(n as f64) as c_float | |
| 80 | } | |
| 81 | ||
| 82 | #[inline] | |
| 83 | pub unsafe fn sinhf(n: c_float) -> c_float { | |
| 84 | f64::sinh(n as f64) as c_float | |
| 85 | } | |
| 86 | ||
| 87 | #[inline] | |
| 88 | pub unsafe fn tanf(n: c_float) -> c_float { | |
| 89 | f64::tan(n as f64) as c_float | |
| 90 | } | |
| 91 | ||
| 92 | #[inline] | |
| 93 | pub unsafe fn tanhf(n: c_float) -> c_float { | |
| 94 | f64::tanh(n as f64) as c_float | |
| 95 | } | |
| 96 | } |