[fusl] clang-format fusl

fusl/src/complex/csqrt.c

 /* origin: FreeBSD /usr/src/lib/msun/src/s_csqrt.c */
 /*-
  * Copyright (c) 2007 David Schultz <das@FreeBSD.ORG>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 19 matching lines @@
 /*
  * gcc doesn't implement complex multiplication or division correctly,
  * so we need to handle infinities specially. We turn on this pragma to
  * notify conforming c99 compilers that the fast-but-incorrect code that
  * gcc generates is acceptable, since the special cases have already been
  * handled.
  */
 #pragma STDC CX_LIMITED_RANGE ON
 
 /* We risk spurious overflow for components >= DBL_MAX / (1 + sqrt(2)). */
-#define THRESH  0x1.a827999fcef32p+1022
+#define THRESH 0x1.a827999fcef32p+1022
 
-double complex csqrt(double complex z)
-{
-        double complex result;
-        double a, b;
-        double t;
-        int scale;
+double complex csqrt(double complex z) {
+  double complex result;
+  double a, b;
+  double t;
+  int scale;
 
-        a = creal(z);
-        b = cimag(z);
+  a = creal(z);
+  b = cimag(z);
 
-        /* Handle special cases. */
-        if (z == 0)
-                return CMPLX(0, b);
-        if (isinf(b))
-                return CMPLX(INFINITY, b);
-        if (isnan(a)) {
-                t = (b - b) / (b - b);  /* raise invalid if b is not a NaN */
-                return CMPLX(a, t);   /* return NaN + NaN i */
-        }
-        if (isinf(a)) {
-                /*
-                 * csqrt(inf + NaN i)  = inf +  NaN i
-                 * csqrt(inf + y i)    = inf +  0 i
-                 * csqrt(-inf + NaN i) = NaN +- inf i
-                 * csqrt(-inf + y i)   = 0   +  inf i
-                 */
-                if (signbit(a))
-                        return CMPLX(fabs(b - b), copysign(a, b));
-                else
-                        return CMPLX(a, copysign(b - b, b));
-        }
-        /*
-         * The remaining special case (b is NaN) is handled just fine by
-         * the normal code path below.
-         */
+  /* Handle special cases. */
+  if (z == 0)
+    return CMPLX(0, b);
+  if (isinf(b))
+    return CMPLX(INFINITY, b);
+  if (isnan(a)) {
+    t = (b - b) / (b - b); /* raise invalid if b is not a NaN */
+    return CMPLX(a, t);    /* return NaN + NaN i */
+  }
+  if (isinf(a)) {
+    /*
+     * csqrt(inf + NaN i)  = inf +  NaN i
+     * csqrt(inf + y i)    = inf +  0 i
+     * csqrt(-inf + NaN i) = NaN +- inf i
+     * csqrt(-inf + y i)   = 0   +  inf i
+     */
+    if (signbit(a))
+      return CMPLX(fabs(b - b), copysign(a, b));
+    else
+      return CMPLX(a, copysign(b - b, b));
+  }
+  /*
+   * The remaining special case (b is NaN) is handled just fine by
+   * the normal code path below.
+   */
 
-        /* Scale to avoid overflow. */
-        if (fabs(a) >= THRESH || fabs(b) >= THRESH) {
-                a *= 0.25;
-                b *= 0.25;
-                scale = 1;
-        } else {
-                scale = 0;
-        }
+  /* Scale to avoid overflow. */
+  if (fabs(a) >= THRESH || fabs(b) >= THRESH) {
+    a *= 0.25;
+    b *= 0.25;
+    scale = 1;
+  } else {
+    scale = 0;
+  }
 
-        /* Algorithm 312, CACM vol 10, Oct 1967. */
-        if (a >= 0) {
-                t = sqrt((a + hypot(a, b)) * 0.5);
-                result = CMPLX(t, b / (2 * t));
-        } else {
-                t = sqrt((-a + hypot(a, b)) * 0.5);
-                result = CMPLX(fabs(b) / (2 * t), copysign(t, b));
-        }
+  /* Algorithm 312, CACM vol 10, Oct 1967. */
+  if (a >= 0) {
+    t = sqrt((a + hypot(a, b)) * 0.5);
+    result = CMPLX(t, b / (2 * t));
+  } else {
+    t = sqrt((-a + hypot(a, b)) * 0.5);
+    result = CMPLX(fabs(b) / (2 * t), copysign(t, b));
+  }
 
-        /* Rescale. */
-        if (scale)
-                result *= 2;
-        return result;
+  /* Rescale. */
+  if (scale)
+    result *= 2;
+  return result;
 }