#![cfg(not(test))] // These symbols are all defined by `libm`, // or by `compiler-builtins` on unsupported platforms. extern "C" { pub fn acos(n: f64) -> f64; pub fn acosf(n: f32) -> f32; pub fn asin(n: f64) -> f64; pub fn asinf(n: f32) -> f32; pub fn atan(n: f64) -> f64; pub fn atan2(a: f64, b: f64) -> f64; pub fn atan2f(a: f32, b: f32) -> f32; pub fn atanf(n: f32) -> f32; pub fn cbrt(n: f64) -> f64; pub fn cbrtf(n: f32) -> f32; pub fn cosh(n: f64) -> f64; pub fn coshf(n: f32) -> f32; pub fn expm1(n: f64) -> f64; pub fn expm1f(n: f32) -> f32; pub fn fdim(a: f64, b: f64) -> f64; pub fn fdimf(a: f32, b: f32) -> f32; pub fn hypot(x: f64, y: f64) -> f64; pub fn hypotf(x: f32, y: f32) -> f32; pub fn log1p(n: f64) -> f64; pub fn log1pf(n: f32) -> f32; pub fn sinh(n: f64) -> f64; pub fn sinhf(n: f32) -> f32; pub fn tan(n: f64) -> f64; pub fn tanf(n: f32) -> f32; pub fn tanh(n: f64) -> f64; pub fn tanhf(n: f32) -> f32; }