Merging upstream version 1.75.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 54 deletions

diff --git a/vendor/libm-0.1.4/src/math/tanh.rs b/vendor/libm-0.1.4/src/math/tanh.rs
deleted file mode 100644
index 75d695cf7..000000000
--- a/vendor/libm-0.1.4/src/math/tanh.rs
+++ /dev/null
@@ -1,54 +0,0 @@
-use super::expm1;
-
-/* tanh(x) = (exp(x) - exp(-x))/(exp(x) + exp(-x))
- *         = (exp(2*x) - 1)/(exp(2*x) - 1 + 2)
- *         = (1 - exp(-2*x))/(exp(-2*x) - 1 + 2)
- */
-#[inline]
-#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
-pub fn tanh(mut x: f64) -> f64 {
-    let mut uf: f64 = x;
-    let mut ui: u64 = f64::to_bits(uf);
-
-    let w: u32;
-    let sign: bool;
-    let mut t: f64;
-
-    /* x = |x| */
-    sign = ui >> 63 != 0;
-    ui &= !1 / 2;
-    uf = f64::from_bits(ui);
-    x = uf;
-    w = (ui >> 32) as u32;
-
-    if w > 0x3fe193ea {
-        /* |x| > log(3)/2 ~= 0.5493 or nan */
-        if w > 0x40340000 {
-            /* |x| > 20 or nan */
-            /* note: this branch avoids raising overflow */
-            t = 1.0 - 0.0 / x;
-        } else {
-            t = expm1(2.0 * x);
-            t = 1.0 - 2.0 / (t + 2.0);
-        }
-    } else if w > 0x3fd058ae {
-        /* |x| > log(5/3)/2 ~= 0.2554 */
-        t = expm1(2.0 * x);
-        t = t / (t + 2.0);
-    } else if w >= 0x00100000 {
-        /* |x| >= 0x1p-1022, up to 2ulp error in [0.1,0.2554] */
-        t = expm1(-2.0 * x);
-        t = -t / (t + 2.0);
-    } else {
-        /* |x| is subnormal */
-        /* note: the branch above would not raise underflow in [0x1p-1023,0x1p-1022) */
-        force_eval!(x as f32);
-        t = x;
-    }
-
-    if sign {
-        -t
-    } else {
-        t
-    }
-}