1 files changed, 0 insertions, 81 deletions
diff --git a/vendor/libm-0.1.4/src/math/acosf.rs b/vendor/libm-0.1.4/src/math/acosf.rs
deleted file mode 100644
index d0598e811..000000000
--- a/vendor/libm-0.1.4/src/math/acosf.rs
+++ /dev/null
@@ -1,81 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/e_acosf.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-use super::sqrtf::sqrtf;
-
-const PIO2_HI: f32 = 1.5707962513e+00; /* 0x3fc90fda */
-const PIO2_LO: f32 = 7.5497894159e-08; /* 0x33a22168 */
-const P_S0: f32 = 1.6666586697e-01;
-const P_S1: f32 = -4.2743422091e-02;
-const P_S2: f32 = -8.6563630030e-03;
-const Q_S1: f32 = -7.0662963390e-01;
-
-#[inline]
-fn r(z: f32) -> f32 {
-    let p = z * (P_S0 + z * (P_S1 + z * P_S2));
-    let q = 1. + z * Q_S1;
-    p / q
-}
-
-/// Arccosine (f32)
-///
-/// Computes the inverse cosine (arc cosine) of the input value.
-/// Arguments must be in the range -1 to 1.
-/// Returns values in radians, in the range of 0 to pi.
-#[inline]
-#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
-pub fn acosf(x: f32) -> f32 {
-    let x1p_120 = f32::from_bits(0x03800000); // 0x1p-120 === 2 ^ (-120)
-
-    let z: f32;
-    let w: f32;
-    let s: f32;
-
-    let mut hx = x.to_bits();
-    let ix = hx & 0x7fffffff;
-    /* |x| >= 1 or nan */
-    if ix >= 0x3f800000 {
-        if ix == 0x3f800000 {
-            if (hx >> 31) != 0 {
-                return 2. * PIO2_HI + x1p_120;
-            }
-            return 0.;
-        }
-        return 0. / (x - x);
-    }
-    /* |x| < 0.5 */
-    if ix < 0x3f000000 {
-        if ix <= 0x32800000 {
-            /* |x| < 2**-26 */
-            return PIO2_HI + x1p_120;
-        }
-        return PIO2_HI - (x - (PIO2_LO - x * r(x * x)));
-    }
-    /* x < -0.5 */
-    if (hx >> 31) != 0 {
-        z = (1. + x) * 0.5;
-        s = sqrtf(z);
-        w = r(z) * s - PIO2_LO;
-        return 2. * (PIO2_HI - (s + w));
-    }
-    /* x > 0.5 */
-    z = (1. - x) * 0.5;
-    s = sqrtf(z);
-    hx = s.to_bits();
-    let df = f32::from_bits(hx & 0xfffff000);
-    let c = (z - df * df) / (s + df);
-    w = r(z) * s + c;
-    2. * (df + w)
-}