[fusl] clang-format fusl

fusl/src/math/atan.c

 /* origin: FreeBSD /usr/src/lib/msun/src/s_atan.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.
  * ====================================================
@@ skipping 11 matching lines @@
  *      [19/16,39/16] atan(x) = atan(3/2) + atan( (t-1.5)/(1+1.5t) )
  *      [39/16,INF]   atan(x) = atan(INF) + atan( -1/t )
  *
  * Constants:
  * The hexadecimal values are the intended ones for the following
  * constants. The decimal values may be used, provided that the
  * compiler will convert from decimal to binary accurately enough
  * to produce the hexadecimal values shown.
  */
 
-
 #include "libm.h"
 
 static const double atanhi[] = {
-  4.63647609000806093515e-01, /* atan(0.5)hi 0x3FDDAC67, 0x0561BB4F */
-  7.85398163397448278999e-01, /* atan(1.0)hi 0x3FE921FB, 0x54442D18 */
-  9.82793723247329054082e-01, /* atan(1.5)hi 0x3FEF730B, 0xD281F69B */
-  1.57079632679489655800e+00, /* atan(inf)hi 0x3FF921FB, 0x54442D18 */
+    4.63647609000806093515e-01, /* atan(0.5)hi 0x3FDDAC67, 0x0561BB4F */
+    7.85398163397448278999e-01, /* atan(1.0)hi 0x3FE921FB, 0x54442D18 */
+    9.82793723247329054082e-01, /* atan(1.5)hi 0x3FEF730B, 0xD281F69B */
+    1.57079632679489655800e+00, /* atan(inf)hi 0x3FF921FB, 0x54442D18 */
 };
 
 static const double atanlo[] = {
-  2.26987774529616870924e-17, /* atan(0.5)lo 0x3C7A2B7F, 0x222F65E2 */
-  3.06161699786838301793e-17, /* atan(1.0)lo 0x3C81A626, 0x33145C07 */
-  1.39033110312309984516e-17, /* atan(1.5)lo 0x3C700788, 0x7AF0CBBD */
-  6.12323399573676603587e-17, /* atan(inf)lo 0x3C91A626, 0x33145C07 */
+    2.26987774529616870924e-17, /* atan(0.5)lo 0x3C7A2B7F, 0x222F65E2 */
+    3.06161699786838301793e-17, /* atan(1.0)lo 0x3C81A626, 0x33145C07 */
+    1.39033110312309984516e-17, /* atan(1.5)lo 0x3C700788, 0x7AF0CBBD */
+    6.12323399573676603587e-17, /* atan(inf)lo 0x3C91A626, 0x33145C07 */
 };
 
 static const double aT[] = {
-  3.33333333333329318027e-01, /* 0x3FD55555, 0x5555550D */
- -1.99999999998764832476e-01, /* 0xBFC99999, 0x9998EBC4 */
-  1.42857142725034663711e-01, /* 0x3FC24924, 0x920083FF */
- -1.11111104054623557880e-01, /* 0xBFBC71C6, 0xFE231671 */
-  9.09088713343650656196e-02, /* 0x3FB745CD, 0xC54C206E */
- -7.69187620504482999495e-02, /* 0xBFB3B0F2, 0xAF749A6D */
-  6.66107313738753120669e-02, /* 0x3FB10D66, 0xA0D03D51 */
- -5.83357013379057348645e-02, /* 0xBFADDE2D, 0x52DEFD9A */
-  4.97687799461593236017e-02, /* 0x3FA97B4B, 0x24760DEB */
- -3.65315727442169155270e-02, /* 0xBFA2B444, 0x2C6A6C2F */
-  1.62858201153657823623e-02, /* 0x3F90AD3A, 0xE322DA11 */
+    3.33333333333329318027e-01,  /* 0x3FD55555, 0x5555550D */
+    -1.99999999998764832476e-01, /* 0xBFC99999, 0x9998EBC4 */
+    1.42857142725034663711e-01,  /* 0x3FC24924, 0x920083FF */
+    -1.11111104054623557880e-01, /* 0xBFBC71C6, 0xFE231671 */
+    9.09088713343650656196e-02,  /* 0x3FB745CD, 0xC54C206E */
+    -7.69187620504482999495e-02, /* 0xBFB3B0F2, 0xAF749A6D */
+    6.66107313738753120669e-02,  /* 0x3FB10D66, 0xA0D03D51 */
+    -5.83357013379057348645e-02, /* 0xBFADDE2D, 0x52DEFD9A */
+    4.97687799461593236017e-02,  /* 0x3FA97B4B, 0x24760DEB */
+    -3.65315727442169155270e-02, /* 0xBFA2B444, 0x2C6A6C2F */
+    1.62858201153657823623e-02,  /* 0x3F90AD3A, 0xE322DA11 */
 };
 
-double atan(double x)
-{
-        double_t w,s1,s2,z;
-        uint32_t ix,sign;
-        int id;
+double atan(double x) {
+  double_t w, s1, s2, z;
+  uint32_t ix, sign;
+  int id;
 
-        GET_HIGH_WORD(ix, x);
-        sign = ix >> 31;
-        ix &= 0x7fffffff;
-        if (ix >= 0x44100000) {   /* if |x| >= 2^66 */
-                if (isnan(x))
-                        return x;
-                z = atanhi[3] + 0x1p-120f;
-                return sign ? -z : z;
-        }
-        if (ix < 0x3fdc0000) {    /* |x| < 0.4375 */
-                if (ix < 0x3e400000) {  /* |x| < 2^-27 */
-                        if (ix < 0x00100000)
-                                /* raise underflow for subnormal x */
-                                FORCE_EVAL((float)x);
-                        return x;
-                }
-                id = -1;
-        } else {
-                x = fabs(x);
-                if (ix < 0x3ff30000) {  /* |x| < 1.1875 */
-                        if (ix < 0x3fe60000) {  /*  7/16 <= |x| < 11/16 */
-                                id = 0;
-                                x = (2.0*x-1.0)/(2.0+x);
-                        } else {                /* 11/16 <= |x| < 19/16 */
-                                id = 1;
-                                x = (x-1.0)/(x+1.0);
-                        }
-                } else {
-                        if (ix < 0x40038000) {  /* |x| < 2.4375 */
-                                id = 2;
-                                x = (x-1.5)/(1.0+1.5*x);
-                        } else {                /* 2.4375 <= |x| < 2^66 */
-                                id = 3;
-                                x = -1.0/x;
-                        }
-                }
-        }
-        /* end of argument reduction */
-        z = x*x;
-        w = z*z;
-        /* break sum from i=0 to 10 aT[i]z**(i+1) into odd and even poly */
-        s1 = z*(aT[0]+w*(aT[2]+w*(aT[4]+w*(aT[6]+w*(aT[8]+w*aT[10])))));
-        s2 = w*(aT[1]+w*(aT[3]+w*(aT[5]+w*(aT[7]+w*aT[9]))));
-        if (id < 0)
-                return x - x*(s1+s2);
-        z = atanhi[id] - (x*(s1+s2) - atanlo[id] - x);
-        return sign ? -z : z;
+  GET_HIGH_WORD(ix, x);
+  sign = ix >> 31;
+  ix &= 0x7fffffff;
+  if (ix >= 0x44100000) { /* if |x| >= 2^66 */
+    if (isnan(x))
+      return x;
+    z = atanhi[3] + 0x1p-120f;
+    return sign ? -z : z;
+  }
+  if (ix < 0x3fdc0000) {   /* |x| < 0.4375 */
+    if (ix < 0x3e400000) { /* |x| < 2^-27 */
+      if (ix < 0x00100000)
+        /* raise underflow for subnormal x */
+        FORCE_EVAL((float)x);
+      return x;
+    }
+    id = -1;
+  } else {
+    x = fabs(x);
+    if (ix < 0x3ff30000) {   /* |x| < 1.1875 */
+      if (ix < 0x3fe60000) { /*  7/16 <= |x| < 11/16 */
+        id = 0;
+        x = (2.0 * x - 1.0) / (2.0 + x);
+      } else { /* 11/16 <= |x| < 19/16 */
+        id = 1;
+        x = (x - 1.0) / (x + 1.0);
+      }
+    } else {
+      if (ix < 0x40038000) { /* |x| < 2.4375 */
+        id = 2;
+        x = (x - 1.5) / (1.0 + 1.5 * x);
+      } else { /* 2.4375 <= |x| < 2^66 */
+        id = 3;
+        x = -1.0 / x;
+      }
+    }
+  }
+  /* end of argument reduction */
+  z = x * x;
+  w = z * z;
+  /* break sum from i=0 to 10 aT[i]z**(i+1) into odd and even poly */
+  s1 = z * (aT[0] +
+            w * (aT[2] + w * (aT[4] + w * (aT[6] + w * (aT[8] + w * aT[10])))));
+  s2 = w * (aT[1] + w * (aT[3] + w * (aT[5] + w * (aT[7] + w * aT[9]))));
+  if (id < 0)
+    return x - x * (s1 + s2);
+  z = atanhi[id] - (x * (s1 + s2) - atanlo[id] - x);
+  return sign ? -z : z;
 }