[fusl] clang-format fusl

fusl/src/math/__rem_pio2l.c

 /* origin: FreeBSD /usr/src/lib/msun/ld80/e_rem_pio2.c */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  * Copyright (c) 2008 Steven G. Kargl, David Schultz, Bruce D. Evans.
  *
  * 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.
  * ====================================================
  *
  * Optimized by Bruce D. Evans.
  */
 #include "libm.h"
 #if (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
 /* ld80 and ld128 version of __rem_pio2(x,y)
  *
  * return the remainder of x rem pi/2 in y[0]+y[1]
  * use __rem_pio2_large() for large x
  */
 
-static const long double toint = 1.5/LDBL_EPSILON;
+static const long double toint = 1.5 / LDBL_EPSILON;
 
 #if LDBL_MANT_DIG == 64
 /* u ~< 0x1p25*pi/2 */
-#define SMALL(u) (((u.i.se & 0x7fffU)<<16 | u.i.m>>48) < ((0x3fff + 25)<<16 | 0x921f>>1 | 0x8000))
+#define SMALL(u)                              \
+  (((u.i.se & 0x7fffU) << 16 | u.i.m >> 48) < \
+   ((0x3fff + 25) << 16 | 0x921f >> 1 | 0x8000))
 #define QUOBITS(x) ((uint32_t)(int32_t)x & 0x7fffffff)
 #define ROUND1 22
 #define ROUND2 61
 #define NX 3
 #define NY 2
 /*
  * invpio2:  64 bits of 2/pi
  * pio2_1:   first  39 bits of pi/2
  * pio2_1t:  pi/2 - pio2_1
  * pio2_2:   second 39 bits of pi/2
  * pio2_2t:  pi/2 - (pio2_1+pio2_2)
  * pio2_3:   third  39 bits of pi/2
  * pio2_3t:  pi/2 - (pio2_1+pio2_2+pio2_3)
  */
-static const double
-pio2_1 =  1.57079632679597125389e+00, /* 0x3FF921FB, 0x54444000 */
-pio2_2 = -1.07463465549783099519e-12, /* -0x12e7b967674000.0p-92 */
-pio2_3 =  6.36831716351370313614e-25; /*  0x18a2e037074000.0p-133 */
+static const double pio2_1 =
+                        1.57079632679597125389e+00, /* 0x3FF921FB, 0x54444000 */
+    pio2_2 = -1.07463465549783099519e-12, /* -0x12e7b967674000.0p-92 */
+    pio2_3 = 6.36831716351370313614e-25;  /*  0x18a2e037074000.0p-133 */
 static const long double
-invpio2 =  6.36619772367581343076e-01L, /*  0xa2f9836e4e44152a.0p-64 */
-pio2_1t = -1.07463465549719416346e-12L, /* -0x973dcb3b399d747f.0p-103 */
-pio2_2t =  6.36831716351095013979e-25L, /*  0xc51701b839a25205.0p-144 */
-pio2_3t = -2.75299651904407171810e-37L; /* -0xbb5bf6c7ddd660ce.0p-185 */
+    invpio2 = 6.36619772367581343076e-01L,  /*  0xa2f9836e4e44152a.0p-64 */
+    pio2_1t = -1.07463465549719416346e-12L, /* -0x973dcb3b399d747f.0p-103 */
+    pio2_2t = 6.36831716351095013979e-25L,  /*  0xc51701b839a25205.0p-144 */
+    pio2_3t = -2.75299651904407171810e-37L; /* -0xbb5bf6c7ddd660ce.0p-185 */
 #elif LDBL_MANT_DIG == 113
 /* u ~< 0x1p45*pi/2 */
-#define SMALL(u) (((u.i.se & 0x7fffU)<<16 | u.i.top) < ((0x3fff + 45)<<16 | 0x921f))
+#define SMALL(u) \
+  (((u.i.se & 0x7fffU) << 16 | u.i.top) < ((0x3fff + 45) << 16 | 0x921f))
 #define QUOBITS(x) ((uint32_t)(int64_t)x & 0x7fffffff)
 #define ROUND1 51
 #define ROUND2 119
 #define NX 5
 #define NY 3
 static const long double
-invpio2 =  6.3661977236758134307553505349005747e-01L,   /*  0x145f306dc9c882a53f84eafa3ea6a.0p-113 */
-pio2_1  =  1.5707963267948966192292994253909555e+00L,   /*  0x1921fb54442d18469800000000000.0p-112 */
-pio2_1t =  2.0222662487959507323996846200947577e-21L,   /*  0x13198a2e03707344a4093822299f3.0p-181 */
-pio2_2  =  2.0222662487959507323994779168837751e-21L,   /*  0x13198a2e03707344a400000000000.0p-181 */
-pio2_2t =  2.0670321098263988236496903051604844e-43L,   /*  0x127044533e63a0105df531d89cd91.0p-254 */
-pio2_3  =  2.0670321098263988236499468110329591e-43L,   /*  0x127044533e63a0105e00000000000.0p-254 */
-pio2_3t = -2.5650587247459238361625433492959285e-65L;   /* -0x159c4ec64ddaeb5f78671cbfb2210.0p-327 */
+    invpio2 =
+        6.3661977236758134307553505349005747e-01L, /*  0x145f306dc9c882a53f84eafa3ea6a.0p-113
+                                                      */
+    pio2_1 =
+        1.5707963267948966192292994253909555e+00L, /*  0x1921fb54442d18469800000000000.0p-112
+                                                      */
+    pio2_1t =
+        2.0222662487959507323996846200947577e-21L, /*  0x13198a2e03707344a4093822299f3.0p-181
+                                                      */
+    pio2_2 =
+        2.0222662487959507323994779168837751e-21L, /*  0x13198a2e03707344a400000000000.0p-181
+                                                      */
+    pio2_2t =
+        2.0670321098263988236496903051604844e-43L, /*  0x127044533e63a0105df531d89cd91.0p-254
+                                                      */
+    pio2_3 =
+        2.0670321098263988236499468110329591e-43L, /*  0x127044533e63a0105e00000000000.0p-254
+                                                      */
+    pio2_3t =
+        -2.5650587247459238361625433492959285e-65L; /* -0x159c4ec64ddaeb5f78671cbfb2210.0p-327
+                                                       */
 #endif
 
-int __rem_pio2l(long double x, long double *y)
-{
-        union ldshape u,uz;
-        long double z,w,t,r,fn;
-        double tx[NX],ty[NY];
-        int ex,ey,n,i;
+int __rem_pio2l(long double x, long double* y) {
+  union ldshape u, uz;
+  long double z, w, t, r, fn;
+  double tx[NX], ty[NY];
+  int ex, ey, n, i;
 
-        u.f = x;
-        ex = u.i.se & 0x7fff;
-        if (SMALL(u)) {
-                /* rint(x/(pi/2)), Assume round-to-nearest. */
-                fn = x*invpio2 + toint - toint;
-                n = QUOBITS(fn);
-                r = x-fn*pio2_1;
-                w = fn*pio2_1t;  /* 1st round good to 102/180 bits (ld80/ld128) */
-                y[0] = r-w;
-                u.f = y[0];
-                ey = u.i.se & 0x7fff;
-                if (ex - ey > ROUND1) {  /* 2nd iteration needed, good to 141/248 (ld80/ld128) */
-                        t = r;
-                        w = fn*pio2_2;
-                        r = t-w;
-                        w = fn*pio2_2t-((t-r)-w);
-                        y[0] = r-w;
-                        u.f = y[0];
-                        ey = u.i.se & 0x7fff;
-                        if (ex - ey > ROUND2) {  /* 3rd iteration, good to 180/316 bits */
-                                t = r; /* will cover all possible cases (not verified for ld128) */
-                                w = fn*pio2_3;
-                                r = t-w;
-                                w = fn*pio2_3t-((t-r)-w);
-                                y[0] = r-w;
-                        }
-                }
-                y[1] = (r - y[0]) - w;
-                return n;
-        }
-        /*
-         * all other (large) arguments
-         */
-        if (ex == 0x7fff) {                /* x is inf or NaN */
-                y[0] = y[1] = x - x;
-                return 0;
-        }
-        /* set z = scalbn(|x|,-ilogb(x)+23) */
-        uz.f = x;
-        uz.i.se = 0x3fff + 23;
-        z = uz.f;
-        for (i=0; i < NX - 1; i++) {
-                tx[i] = (double)(int32_t)z;
-                z     = (z-tx[i])*0x1p24;
-        }
-        tx[i] = z;
-        while (tx[i] == 0)
-                i--;
-        n = __rem_pio2_large(tx, ty, ex-0x3fff-23, i+1, NY);
-        w = ty[1];
-        if (NY == 3)
-                w += ty[2];
-        r = ty[0] + w;
-        /* TODO: for ld128 this does not follow the recommendation of the
-        comments of __rem_pio2_large which seem wrong if |ty[0]| > |ty[1]+ty[2]| */
-        w -= r - ty[0];
-        if (u.i.se >> 15) {
-                y[0] = -r;
-                y[1] = -w;
-                return -n;
-        }
-        y[0] = r;
-        y[1] = w;
-        return n;
+  u.f = x;
+  ex = u.i.se & 0x7fff;
+  if (SMALL(u)) {
+    /* rint(x/(pi/2)), Assume round-to-nearest. */
+    fn = x * invpio2 + toint - toint;
+    n = QUOBITS(fn);
+    r = x - fn * pio2_1;
+    w = fn * pio2_1t; /* 1st round good to 102/180 bits (ld80/ld128) */
+    y[0] = r - w;
+    u.f = y[0];
+    ey = u.i.se & 0x7fff;
+    if (ex - ey >
+        ROUND1) { /* 2nd iteration needed, good to 141/248 (ld80/ld128) */
+      t = r;
+      w = fn * pio2_2;
+      r = t - w;
+      w = fn * pio2_2t - ((t - r) - w);
+      y[0] = r - w;
+      u.f = y[0];
+      ey = u.i.se & 0x7fff;
+      if (ex - ey > ROUND2) { /* 3rd iteration, good to 180/316 bits */
+        t = r; /* will cover all possible cases (not verified for ld128) */
+        w = fn * pio2_3;
+        r = t - w;
+        w = fn * pio2_3t - ((t - r) - w);
+        y[0] = r - w;
+      }
+    }
+    y[1] = (r - y[0]) - w;
+    return n;
+  }
+  /*
+   * all other (large) arguments
+   */
+  if (ex == 0x7fff) { /* x is inf or NaN */
+    y[0] = y[1] = x - x;
+    return 0;
+  }
+  /* set z = scalbn(|x|,-ilogb(x)+23) */
+  uz.f = x;
+  uz.i.se = 0x3fff + 23;
+  z = uz.f;
+  for (i = 0; i < NX - 1; i++) {
+    tx[i] = (double)(int32_t)z;
+    z = (z - tx[i]) * 0x1p24;
+  }
+  tx[i] = z;
+  while (tx[i] == 0)
+    i--;
+  n = __rem_pio2_large(tx, ty, ex - 0x3fff - 23, i + 1, NY);
+  w = ty[1];
+  if (NY == 3)
+    w += ty[2];
+  r = ty[0] + w;
+  /* TODO: for ld128 this does not follow the recommendation of the
+  comments of __rem_pio2_large which seem wrong if |ty[0]| > |ty[1]+ty[2]| */
+  w -= r - ty[0];
+  if (u.i.se >> 15) {
+    y[0] = -r;
+    y[1] = -w;
+    return -n;
+  }
+  y[0] = r;
+  y[1] = w;
+  return n;
 }
 #endif