[fusl] clang-format fusl

fusl/src/math/acos.c

 /* origin: FreeBSD /usr/src/lib/msun/src/e_acos.c */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  *
  * Developed at SunSoft, a Sun Microsystems, Inc. business.
  * Permission to use, copy, modify, and distribute this
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
@@ skipping 17 matching lines @@
  *
  * Special cases:
  *      if x is NaN, return x itself;
  *      if |x|>1, return NaN with invalid signal.
  *
  * Function needed: sqrt
  */
 
 #include "libm.h"
 
-static const double
-pio2_hi = 1.57079632679489655800e+00, /* 0x3FF921FB, 0x54442D18 */
-pio2_lo = 6.12323399573676603587e-17, /* 0x3C91A626, 0x33145C07 */
-pS0 =  1.66666666666666657415e-01, /* 0x3FC55555, 0x55555555 */
-pS1 = -3.25565818622400915405e-01, /* 0xBFD4D612, 0x03EB6F7D */
-pS2 =  2.01212532134862925881e-01, /* 0x3FC9C155, 0x0E884455 */
-pS3 = -4.00555345006794114027e-02, /* 0xBFA48228, 0xB5688F3B */
-pS4 =  7.91534994289814532176e-04, /* 0x3F49EFE0, 0x7501B288 */
-pS5 =  3.47933107596021167570e-05, /* 0x3F023DE1, 0x0DFDF709 */
-qS1 = -2.40339491173441421878e+00, /* 0xC0033A27, 0x1C8A2D4B */
-qS2 =  2.02094576023350569471e+00, /* 0x40002AE5, 0x9C598AC8 */
-qS3 = -6.88283971605453293030e-01, /* 0xBFE6066C, 0x1B8D0159 */
-qS4 =  7.70381505559019352791e-02; /* 0x3FB3B8C5, 0xB12E9282 */
+static const double pio2_hi =
+                        1.57079632679489655800e+00, /* 0x3FF921FB, 0x54442D18 */
+    pio2_lo = 6.12323399573676603587e-17,           /* 0x3C91A626, 0x33145C07 */
+    pS0 = 1.66666666666666657415e-01,               /* 0x3FC55555, 0x55555555 */
+    pS1 = -3.25565818622400915405e-01,              /* 0xBFD4D612, 0x03EB6F7D */
+    pS2 = 2.01212532134862925881e-01,               /* 0x3FC9C155, 0x0E884455 */
+    pS3 = -4.00555345006794114027e-02,              /* 0xBFA48228, 0xB5688F3B */
+    pS4 = 7.91534994289814532176e-04,               /* 0x3F49EFE0, 0x7501B288 */
+    pS5 = 3.47933107596021167570e-05,               /* 0x3F023DE1, 0x0DFDF709 */
+    qS1 = -2.40339491173441421878e+00,              /* 0xC0033A27, 0x1C8A2D4B */
+    qS2 = 2.02094576023350569471e+00,               /* 0x40002AE5, 0x9C598AC8 */
+    qS3 = -6.88283971605453293030e-01,              /* 0xBFE6066C, 0x1B8D0159 */
+    qS4 = 7.70381505559019352791e-02;               /* 0x3FB3B8C5, 0xB12E9282 */
 
-static double R(double z)
-{
-        double_t p, q;
-        p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5)))));
-        q = 1.0+z*(qS1+z*(qS2+z*(qS3+z*qS4)));
-        return p/q;
+static double R(double z) {
+  double_t p, q;
+  p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + z * (pS4 + z * pS5)))));
+  q = 1.0 + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4)));
+  return p / q;
 }
 
-double acos(double x)
-{
-        double z,w,s,c,df;
-        uint32_t hx,ix;
+double acos(double x) {
+  double z, w, s, c, df;
+  uint32_t hx, ix;
 
-        GET_HIGH_WORD(hx, x);
-        ix = hx & 0x7fffffff;
-        /* |x| >= 1 or nan */
-        if (ix >= 0x3ff00000) {
-                uint32_t lx;
+  GET_HIGH_WORD(hx, x);
+  ix = hx & 0x7fffffff;
+  /* |x| >= 1 or nan */
+  if (ix >= 0x3ff00000) {
+    uint32_t lx;
 
-                GET_LOW_WORD(lx,x);
-                if ((ix-0x3ff00000 | lx) == 0) {
-                        /* acos(1)=0, acos(-1)=pi */
-                        if (hx >> 31)
-                                return 2*pio2_hi + 0x1p-120f;
-                        return 0;
-                }
-                return 0/(x-x);
-        }
-        /* |x| < 0.5 */
-        if (ix < 0x3fe00000) {
-                if (ix <= 0x3c600000)  /* |x| < 2**-57 */
-                        return pio2_hi + 0x1p-120f;
-                return pio2_hi - (x - (pio2_lo-x*R(x*x)));
-        }
-        /* x < -0.5 */
-        if (hx >> 31) {
-                z = (1.0+x)*0.5;
-                s = sqrt(z);
-                w = R(z)*s-pio2_lo;
-                return 2*(pio2_hi - (s+w));
-        }
-        /* x > 0.5 */
-        z = (1.0-x)*0.5;
-        s = sqrt(z);
-        df = s;
-        SET_LOW_WORD(df,0);
-        c = (z-df*df)/(s+df);
-        w = R(z)*s+c;
-        return 2*(df+w);
+    GET_LOW_WORD(lx, x);
+    if ((ix - 0x3ff00000 | lx) == 0) {
+      /* acos(1)=0, acos(-1)=pi */
+      if (hx >> 31)
+        return 2 * pio2_hi + 0x1p-120f;
+      return 0;
+    }
+    return 0 / (x - x);
+  }
+  /* |x| < 0.5 */
+  if (ix < 0x3fe00000) {
+    if (ix <= 0x3c600000) /* |x| < 2**-57 */
+      return pio2_hi + 0x1p-120f;
+    return pio2_hi - (x - (pio2_lo - x * R(x * x)));
+  }
+  /* x < -0.5 */
+  if (hx >> 31) {
+    z = (1.0 + x) * 0.5;
+    s = sqrt(z);
+    w = R(z) * s - pio2_lo;
+    return 2 * (pio2_hi - (s + w));
+  }
+  /* x > 0.5 */
+  z = (1.0 - x) * 0.5;
+  s = sqrt(z);
+  df = s;
+  SET_LOW_WORD(df, 0);
+  c = (z - df * df) / (s + df);
+  w = R(z) * s + c;
+  return 2 * (df + w);
 }