[fusl] clang-format fusl

fusl/src/math/atan2l.c

 /* origin: FreeBSD /usr/src/lib/msun/src/e_atan2l.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.
  * ====================================================
  *
  */
 /*
  * See comments in atan2.c.
  * Converted to long double by David Schultz <das@FreeBSD.ORG>.
  */
 
 #include "libm.h"
 
 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
-long double atan2l(long double y, long double x)
-{
-        return atan2(y, x);
+long double atan2l(long double y, long double x) {
+  return atan2(y, x);
 }
 #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
 #include "__invtrigl.h"
 
-long double atan2l(long double y, long double x)
-{
-        union ldshape ux, uy;
-        long double z;
-        int m, ex, ey;
+long double atan2l(long double y, long double x) {
+  union ldshape ux, uy;
+  long double z;
+  int m, ex, ey;
 
-        if (isnan(x) || isnan(y))
-                return x+y;
-        if (x == 1)
-                return atanl(y);
-        ux.f = x;
-        uy.f = y;
-        ex = ux.i.se & 0x7fff;
-        ey = uy.i.se & 0x7fff;
-        m = 2*(ux.i.se>>15) | uy.i.se>>15;
-        if (y == 0) {
-                switch(m) {
-                case 0:
-                case 1: return y;           /* atan(+-0,+anything)=+-0 */
-                case 2: return  2*pio2_hi;  /* atan(+0,-anything) = pi */
-                case 3: return -2*pio2_hi;  /* atan(-0,-anything) =-pi */
-                }
-        }
-        if (x == 0)
-                return m&1 ? -pio2_hi : pio2_hi;
-        if (ex == 0x7fff) {
-                if (ey == 0x7fff) {
-                        switch(m) {
-                        case 0: return  pio2_hi/2;   /* atan(+INF,+INF) */
-                        case 1: return -pio2_hi/2;   /* atan(-INF,+INF) */
-                        case 2: return  1.5*pio2_hi; /* atan(+INF,-INF) */
-                        case 3: return -1.5*pio2_hi; /* atan(-INF,-INF) */
-                        }
-                } else {
-                        switch(m) {
-                        case 0: return  0.0;        /* atan(+...,+INF) */
-                        case 1: return -0.0;        /* atan(-...,+INF) */
-                        case 2: return  2*pio2_hi;  /* atan(+...,-INF) */
-                        case 3: return -2*pio2_hi;  /* atan(-...,-INF) */
-                        }
-                }
-        }
-        if (ex+120 < ey || ey == 0x7fff)
-                return m&1 ? -pio2_hi : pio2_hi;
-        /* z = atan(|y/x|) without spurious underflow */
-        if ((m&2) && ey+120 < ex)  /* |y/x| < 0x1p-120, x<0 */
-                z = 0.0;
-        else
-                z = atanl(fabsl(y/x));
-        switch (m) {
-        case 0: return z;               /* atan(+,+) */
-        case 1: return -z;              /* atan(-,+) */
-        case 2: return 2*pio2_hi-(z-2*pio2_lo); /* atan(+,-) */
-        default: /* case 3 */
-                return (z-2*pio2_lo)-2*pio2_hi; /* atan(-,-) */
-        }
+  if (isnan(x) || isnan(y))
+    return x + y;
+  if (x == 1)
+    return atanl(y);
+  ux.f = x;
+  uy.f = y;
+  ex = ux.i.se & 0x7fff;
+  ey = uy.i.se & 0x7fff;
+  m = 2 * (ux.i.se >> 15) | uy.i.se >> 15;
+  if (y == 0) {
+    switch (m) {
+      case 0:
+      case 1:
+        return y; /* atan(+-0,+anything)=+-0 */
+      case 2:
+        return 2 * pio2_hi; /* atan(+0,-anything) = pi */
+      case 3:
+        return -2 * pio2_hi; /* atan(-0,-anything) =-pi */
+    }
+  }
+  if (x == 0)
+    return m & 1 ? -pio2_hi : pio2_hi;
+  if (ex == 0x7fff) {
+    if (ey == 0x7fff) {
+      switch (m) {
+        case 0:
+          return pio2_hi / 2; /* atan(+INF,+INF) */
+        case 1:
+          return -pio2_hi / 2; /* atan(-INF,+INF) */
+        case 2:
+          return 1.5 * pio2_hi; /* atan(+INF,-INF) */
+        case 3:
+          return -1.5 * pio2_hi; /* atan(-INF,-INF) */
+      }
+    } else {
+      switch (m) {
+        case 0:
+          return 0.0; /* atan(+...,+INF) */
+        case 1:
+          return -0.0; /* atan(-...,+INF) */
+        case 2:
+          return 2 * pio2_hi; /* atan(+...,-INF) */
+        case 3:
+          return -2 * pio2_hi; /* atan(-...,-INF) */
+      }
+    }
+  }
+  if (ex + 120 < ey || ey == 0x7fff)
+    return m & 1 ? -pio2_hi : pio2_hi;
+  /* z = atan(|y/x|) without spurious underflow */
+  if ((m & 2) && ey + 120 < ex) /* |y/x| < 0x1p-120, x<0 */
+    z = 0.0;
+  else
+    z = atanl(fabsl(y / x));
+  switch (m) {
+    case 0:
+      return z; /* atan(+,+) */
+    case 1:
+      return -z; /* atan(-,+) */
+    case 2:
+      return 2 * pio2_hi - (z - 2 * pio2_lo); /* atan(+,-) */
+    default:                                  /* case 3 */
+      return (z - 2 * pio2_lo) - 2 * pio2_hi; /* atan(-,-) */
+  }
 }
 #endif