[fusl] clang-format fusl

fusl/src/math/log2f.c

 /* origin: FreeBSD /usr/src/lib/msun/src/e_log2f.c */
 /*
  * ====================================================
  * 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.
  * ====================================================
  */
 /*
  * See comments in log2.c.
  */
 
 #include <math.h>
 #include <stdint.h>
 
-static const float
-ivln2hi =  1.4428710938e+00, /* 0x3fb8b000 */
-ivln2lo = -1.7605285393e-04, /* 0xb9389ad4 */
-/* |(log(1+s)-log(1-s))/s - Lg(s)| < 2**-34.24 (~[-4.95e-11, 4.97e-11]). */
-Lg1 = 0xaaaaaa.0p-24, /* 0.66666662693 */
-Lg2 = 0xccce13.0p-25, /* 0.40000972152 */
-Lg3 = 0x91e9ee.0p-25, /* 0.28498786688 */
-Lg4 = 0xf89e26.0p-26; /* 0.24279078841 */
+static const float ivln2hi = 1.4428710938e+00, /* 0x3fb8b000 */
+    ivln2lo = -1.7605285393e-04,               /* 0xb9389ad4 */
+    /* |(log(1+s)-log(1-s))/s - Lg(s)| < 2**-34.24 (~[-4.95e-11, 4.97e-11]). */
+    Lg1 = 0xaaaaaa.0p-24, /* 0.66666662693 */
+    Lg2 = 0xccce13.0p-25, /* 0.40000972152 */
+    Lg3 = 0x91e9ee.0p-25, /* 0.28498786688 */
+    Lg4 = 0xf89e26.0p-26; /* 0.24279078841 */
 
-float log2f(float x)
-{
-        union {float f; uint32_t i;} u = {x};
-        float_t hfsq,f,s,z,R,w,t1,t2,hi,lo;
-        uint32_t ix;
-        int k;
+float log2f(float x) {
+  union {
+    float f;
+    uint32_t i;
+  } u = {x};
+  float_t hfsq, f, s, z, R, w, t1, t2, hi, lo;
+  uint32_t ix;
+  int k;
 
-        ix = u.i;
-        k = 0;
-        if (ix < 0x00800000 || ix>>31) {  /* x < 2**-126  */
-                if (ix<<1 == 0)
-                        return -1/(x*x);  /* log(+-0)=-inf */
-                if (ix>>31)
-                        return (x-x)/0.0f; /* log(-#) = NaN */
-                /* subnormal number, scale up x */
-                k -= 25;
-                x *= 0x1p25f;
-                u.f = x;
-                ix = u.i;
-        } else if (ix >= 0x7f800000) {
-                return x;
-        } else if (ix == 0x3f800000)
-                return 0;
+  ix = u.i;
+  k = 0;
+  if (ix < 0x00800000 || ix >> 31) { /* x < 2**-126  */
+    if (ix << 1 == 0)
+      return -1 / (x * x); /* log(+-0)=-inf */
+    if (ix >> 31)
+      return (x - x) / 0.0f; /* log(-#) = NaN */
+    /* subnormal number, scale up x */
+    k -= 25;
+    x *= 0x1p25f;
+    u.f = x;
+    ix = u.i;
+  } else if (ix >= 0x7f800000) {
+    return x;
+  } else if (ix == 0x3f800000)
+    return 0;
 
-        /* reduce x into [sqrt(2)/2, sqrt(2)] */
-        ix += 0x3f800000 - 0x3f3504f3;
-        k += (int)(ix>>23) - 0x7f;
-        ix = (ix&0x007fffff) + 0x3f3504f3;
-        u.i = ix;
-        x = u.f;
+  /* reduce x into [sqrt(2)/2, sqrt(2)] */
+  ix += 0x3f800000 - 0x3f3504f3;
+  k += (int)(ix >> 23) - 0x7f;
+  ix = (ix & 0x007fffff) + 0x3f3504f3;
+  u.i = ix;
+  x = u.f;
 
-        f = x - 1.0f;
-        s = f/(2.0f + f);
-        z = s*s;
-        w = z*z;
-        t1= w*(Lg2+w*Lg4);
-        t2= z*(Lg1+w*Lg3);
-        R = t2 + t1;
-        hfsq = 0.5f*f*f;
+  f = x - 1.0f;
+  s = f / (2.0f + f);
+  z = s * s;
+  w = z * z;
+  t1 = w * (Lg2 + w * Lg4);
+  t2 = z * (Lg1 + w * Lg3);
+  R = t2 + t1;
+  hfsq = 0.5f * f * f;
 
-        hi = f - hfsq;
-        u.f = hi;
-        u.i &= 0xfffff000;
-        hi = u.f;
-        lo = f - hi - hfsq + s*(hfsq+R);
-        return (lo+hi)*ivln2lo + lo*ivln2hi + hi*ivln2hi + k;
+  hi = f - hfsq;
+  u.f = hi;
+  u.i &= 0xfffff000;
+  hi = u.f;
+  lo = f - hi - hfsq + s * (hfsq + R);
+  return (lo + hi) * ivln2lo + lo * ivln2hi + hi * ivln2hi + k;
 }