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use super::expm1f;
use super::k_expo2f;
#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
pub fn sinhf(x: f32) -> f32 {
let mut h = 0.5f32;
let mut ix = x.to_bits();
if (ix >> 31) != 0 {
h = -h;
}
/* |x| */
ix &= 0x7fffffff;
let absx = f32::from_bits(ix);
let w = ix;
/* |x| < log(FLT_MAX) */
if w < 0x42b17217 {
let t = expm1f(absx);
if w < 0x3f800000 {
if w < (0x3f800000 - (12 << 23)) {
return x;
}
return h * (2. * t - t * t / (t + 1.));
}
return h * (t + t / (t + 1.));
}
/* |x| > logf(FLT_MAX) or nan */
2. * h * k_expo2f(absx)
}