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ecf6d3c6ce
Currently, attributes for `no-panic` are gated behind both the `test` config and `assert_no_panic`, because `no-panic` is a dev dependency (so only available with test configuration). However, we only emit `assert_no_panic` when the test config is also set anyway, so there isn't any need to gate on both. Replace gates on `all(test, assert_no_panic)` with only `assert_no_panic`. This is simpler, and also has the benefit that attempting to check for panics without `--test` errors.
31 lines
711 B
Rust
31 lines
711 B
Rust
use super::{expm1f, k_expo2f};
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/// The hyperbolic sine of `x` (f32).
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#[cfg_attr(assert_no_panic, no_panic::no_panic)]
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pub fn sinhf(x: f32) -> f32 {
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let mut h = 0.5f32;
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let mut ix = x.to_bits();
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if (ix >> 31) != 0 {
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h = -h;
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}
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/* |x| */
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ix &= 0x7fffffff;
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let absx = f32::from_bits(ix);
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let w = ix;
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/* |x| < log(FLT_MAX) */
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if w < 0x42b17217 {
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let t = expm1f(absx);
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if w < 0x3f800000 {
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if w < (0x3f800000 - (12 << 23)) {
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return x;
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}
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return h * (2. * t - t * t / (t + 1.));
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}
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return h * (t + t / (t + 1.));
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}
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/* |x| > logf(FLT_MAX) or nan */
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2. * h * k_expo2f(absx)
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}
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