// These symbols are all defined in `compiler-builtins`
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;
}